About Aili Industrial｜Motor fan control filter and complete machine R&D and manufacturing

About Aili Industry

Aili Industry - R&D and manufacturing of clean air equipment

Aili Industry is an enterprise specializing in the research, development, design and manufacturing of purification equipment, air filtration equipment, clean room equipment and air treatment equipment.
The company has a 30,000 square meter production base. Through continuous product research and development and manufacturing capacity building, it has formed a production system covering core components and complete machine equipment. Aili Industrial's products include FFU, EFU, BFU, centrifugal fans, HEPA and ULPA filters, chemical filters, air showers, transfer windows, clean benches, clean booths, weighing rooms, laminar flow hoods, HEPA filter boxes, air purification equipment and air conditioning boxes, etc.
Products are widely used in semiconductor, photovoltaic, lithium battery, panel display, electronic manufacturing, biomedicine, laboratory, food, cosmetics and other industries.
Different from suppliers who simply assemble complete machines, Aili Industrial incorporates multiple links such as motors, fans, filters, control systems, sheet metal processing, and complete machine assembly into its own manufacturing system. It participates in product development and quality control starting from core components, and provides product and technical support for equipment matching, clean production, and system transformation projects.

Aili industrial purification equipment assembly workshop

Aili Industrial Purification Equipment Sheet Metal Production Workshop

Aili industrial filter production workshop

20+

Years of experience in purification equipment manufacturing

30000㎡

Large-scale production and manufacturing base

Whole industry chain

Independent production of the entire industry chain from core components to complete machines

Multi-industry applications

Covers a variety of clean environments

From a core component to a complete device

Aili Industrial is different from the common 'parts outsourcing + simple assembly' model in the industry. We insist on independent production of the entire industry chain from fans, intelligent control systems to HEPA/ULPA high-efficiency filters.

Motor

Provide power support for purification equipment and air treatment equipment.

fan

Match according to air volume, static pressure and product structure.

filter

Covering different filter levels and application requirements.

control system

Support equipment speed regulation, operation control and corresponding communication requirements.

Edit style

Aili Industrial is different from the common 'parts outsourcing + simple assembly' model in the industry. We insist on independent production of the entire industry chain from fans, intelligent control systems to HEPA/ULPA high-efficiency filters.

Sheet metal processing

Complete the manufacturing of equipment boxes, structural parts and customized components.

Whole machine assembly

Integrate core components into complete equipment.

Performance testing

Carry out corresponding performance and operation checks according to product type.

Pack and ship

Pack all kinds of products and ship them all over the world.

From purification equipment to air treatment equipment

Covering multiple product fields such as clean air supply, air filtration, clean room equipment and air treatment.

Purification equipment

Air handling equipment

FFU Fan Filter Unit

Integrate the fan and filter to provide filtered clean air for clean rooms and controlled environments.
Application: Semiconductor · Photovoltaic · Electronics · Panel display · Clean room View FFU →

EFU equipment side fan filter unit

Designed for equipment end and local clean air needs, it can be customized according to equipment space and air parameters.

application:

Semiconductor equipment · Panel display · Electronic manufacturing · Photovoltaic · Lithium battery View EFU →

BFU Blower Filter Unit

Combining fans, filters and box structures provides solutions for different clean air supply scenarios.

Application: Clean room · Industrial clean environment View BFU →

HEPA / ULPA high efficiency and ultra high efficiency filters

Provide filtration products for different cleanliness levels and air filtration needs.

Application: Semiconductor·Pharmaceutical·Laboratory·CleanroomView filtration products→

Cleanroom EquipmentCleanroom Equipment

Covers clean room supporting equipment such as air showers, transfer windows, clean workbenches, clean sheds, and weighing rooms.

Application: Semiconductor · Panel Display · Medicine · Electronics · Food · Laboratory View Clean Room Equipment →

air handling equipment

Provides filters, air conditioning boxes, chemical air purification equipment and other products.

Application: Industrial environment·Commercial space·Special air purification sceneView air purification equipment→

FFU · EFU · BFU · Clean room equipment

Aili Industry provides a complete product system from fan filter units to clean room supporting equipment, which is suitable for clean rooms, equipment ends and local clean areas.

Products include:

FFU, EFU, BFU, HEPA/ULPA filters, air showers, transfer windows, clean benches, clean sheds, weighing rooms, laminar flow hoods, HEPA filter boxes, etc.

Air handling equipment air conditioning box · air handling system

Provide air treatment equipment for different industrial and clean environments around air filtration, treatment, transportation and distribution needs.

Products include:

Air-conditioning boxes, air treatment equipment and customized air treatment solutions configured according to project needs.

Participate in joint development from components to complete machine

Core components are independently developed and manufactured , allowing non-standard development, performance adjustment and problem improvement to be promoted internally .

Motors, fans, control system software and hardware, filters, sheet metal and the complete machine are all connected internally. Relevant internal engineers communicate around the same drawings and technical requirements to reduce information deviations caused by separate confirmations of component configurations, control interfaces and box structures.

Motor manufacturing

Combined with the product structure and operating conditions, check the motor configuration, electrical parameters and speed regulation requirements.

Independent research and development and production of fans

Based on the target air volume, static pressure, wind speed and installation space, carry out matching between the fan and the complete machine.

Control system software and hardware development

Jointly confirm the control hardware, software logic, speed control signals and communication interfaces.

Aili Industrial FFU high-efficiency filter production workshop

air filter manufacturing

Design filtration configuration based on filtration level, effective area, operating resistance and installation seal

Aili Industrial FFU production sheet metal production

Sheet Metal and Structural Fabrication

Design the structure around equipment openings, box air ducts, fixing methods, and maintenance spaces.

Complete machine assembly and testing

Implement the confirmed configuration into assembly and testing, and record the agreed operating parameters.

Implement manufacturing capabilities into project value

Performance joint tuning

Fans, motors, filters, controls and structures are adjusted together around the same project goals, supporting matching of air volume, wind speed, uniformity and equipment interfaces.

Development response is more direct

Relevant engineers communicate directly internally, reducing the need for translation and repeated confirmation by multiple parties, and facilitating the advancement of drawings, prototypes, and parameter modifications.

Project cost planning

Jointly consider performance configuration, processing assembly and maintenance conditions during the design stage to reduce expenditures caused by repeated modifications, over-configuration and interface rework.

Joint analysis of operational issues

Combined with on-site working conditions, relevant R&D personnel will jointly analyze power, filtration, control and structural issues to provide support for targeted adjustments.

How to connect prototype modification and batch matching

For projects that require non-standard development, we first jointly confirm the application location, performance targets and interfaces, and then advance drawings, prototypes and testing according to project needs. The confirmed adjustment matters are implemented into the component configuration, assembly data and inspection requirements to provide a basis for subsequent batch matching.

Submit a request

Clarify the purpose of the equipment, installation drawings, target air volume or speed, filtration requirements and control interfaces

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joint assessment

Relevant engineers jointly check the power, filtration, structure and control configuration to form a product plan.

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Prototype and verification

Confirm the prototype, test methods and installation status according to project needs, and implement adjustments.

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Manufacturing and delivery

Use confirmed drawings, configurations and inspection requirements for production, assembly and delivery.

Relevant R&D personnel participate in analysis of operational problems

After the customer provides abnormal phenomena, installation status, control settings and existing records, relevant R&D personnel can jointly check the operation of the motor and fan, filter resistance, control signals and overall machine structure. When adjustments are needed, the cause analysis, plan modification and verification requirements are connected to each other to provide support for subsequent improvements.

Practical application in equipment matching

Semiconductor equipment manufacturer support

Lithium battery production equipment manufacturer supporting equipment

Customer requirements: Wind speed uniformity

Customer requirement: 2 m/s target wind speed

Focusing on the uniformity requirements proposed by semiconductor equipment manufacturers, the fan, control system and cabinet design were jointly adjusted to meet the project requirements.

Focusing on the target wind speed proposed by the lithium battery production equipment manufacturer, the project's wind speed target of 2 m/s was achieved through adjustments to the wind turbine and related configurations.

Project results: The wind speed uniformity required by the customer was achieved.

Project results: The project’s wind speed target of 2 m/s was achieved.

From the performance requirements proposed by customers to the joint adjustment of related components and complete machine solutions, these projects reflect the support of Aili Industrial's independent R&D and manufacturing for equipment matching and performance customization.

Quality control, starting from core components

Rather than waiting for the entire machine to be completed before testing, quality control is implemented throughout the product manufacturing process.

For purification equipment, core components such as motors, fans, filters and control systems will affect the final operating performance. Therefore, Aili Industry extends quality control to core components, production processes, complete machine assembly and product testing.

Core components

Carry out corresponding quality inspections on key components.
Production process

Control product consistency during manufacturing.
Whole machine assembly

Check the equipment structure, component installation and operating status.
Product testing

Carry out corresponding performance and operation tests according to product type.

01｜
Semiconductor

We provide FFU, EFU, filters and other clean air equipment for wafer manufacturing, semiconductor equipment and clean room environments.

Key requirements:
Cleanliness· Air flow uniformity· Equipment space· Stable operation

02｜
Photovoltaics

It is used in photovoltaic cells, components and related production environments to provide air filtration and clean air solutions for production equipment and clean areas.

Key needs:
clean air·air volume·filtration·equipment matching

03｜Lithium battery

Lithium Battery

Serving the lithium battery production and related equipment environment, product matching can be carried out according to the wind speed, air volume and air cleanliness requirements of different processes.

Key requirements:
high air volume·wind speed·cleanliness·dust control

04｜Panel display

Display & FPD

We provide FFU, EFU and air filtration equipment for LCD, OLED and panel display related production environments.

Key requirements:
cleanliness, air flow uniformity, equipment end cleanliness, low vibration

05｜Electronics Manufacturing

Electronics

It is suitable for electronic components, SMT, PCB and automated production equipment to provide clean air for the production area and inside the equipment.

Key requirements:
local cleanliness·dust prevention·stable air flow·equipment integration

06｜Data
Centers

For data centers and high-density IT equipment environments, we provide air filtration, air circulation and local air treatment equipment.

Key requirements:
air filtration·temperature management·air flow organization·continuous operation

7｜Precision manufacturing

Precision Manufacturing

Serving precision machinery, instrumentation, automation equipment and other manufacturing scenarios that require clean air in the production environment.

Key needs:
dust prevention·air filtration·local cleaning·equipment integration

8｜Automobile and new energy manufacturing

Automotive & New Energy

Suitable for automotive electronics, power batteries, precision components and new energy related production environments.

Key needs:
Clean air·Dust control·Equipment matching·Customized size

9｜Precision Optics

Optics & Precision Manufacturing

Provides clean air and filtration equipment for optical components, precision manufacturing and production areas sensitive to particle environments.

Key requirements:
Particle control · Air flow stability · High-efficiency filtration · Local cleanliness

10｜Biomedicine

Biopharmaceutical

Suitable for pharmaceutical, laboratory, biotechnology and related production environments, providing air filtration and clean air equipment for clean areas.

Key requirements:
Cleanliness·Filtration·Air treatment·Environmental control

11｜Medical and Laboratory

Healthcare & Laboratories

It is used in laboratories, medical-related clean areas and research environments. Corresponding air filtration equipment can be configured according to space and cleanliness requirements.

Key requirements:
air filtration·clean environment·low noise operation·customized configuration

12｜Food

Food Processing

Used in food processing, packaging and related clean production areas to help control particles and pollutants in the air.

Key requirements:
air filtration·clean environment·hygiene requirements·stable operation

From product manufacturing to project support

1

The product selection

provides products such as FFU, EFU, BFU, filters, clean room equipment, air conditioning boxes and other air treatment equipment.

2

Customization enables

product matching based on the actual dimensions and air performance requirements of the project.

3

Technical communication

involves the technical team participating in product parameter and plan confirmation.

4

Manufacturing delivery

forms a complete delivery process from manufacturing, assembly to testing.

About Aili Industry

From the production site, you can see our manufacturing capabilities.

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Equipment assembly workshop

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Motor production workshop

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Fan production workshop

Aili Industrial Sheet Metal Production Workshop

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Sheet metal processing workshop

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Filter production workshop

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Assembly workshop

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Ship

FAQ & KNOWLEDGE BASE

Frequently Asked Questions about Aili Industrial

Answer your core questions about Aili's industrial purification equipment, manufacturing capabilities, product customization and application industries

Professional purification equipment and clean room solutions

Aili Industry has a complete independent manufacturing system, from core components to complete machine assembly, to provide you with high-quality, customizable air treatment and clean room equipment.

Q1: What type of company is Aili Industry?

Aili Industry is an enterprise specializing in the R&D and manufacturing of purification equipment, air filtration equipment, clean room equipment and air treatment equipment.

Q2: Is Aili Industrial a manufacturer or a trading company?

Q3: What products does Aili Industrial mainly produce?

Q4: Can Aili Industrial produce customized products?

Q5: What are the core manufacturing capabilities of Aili Industry?

Q6: In which industries are Aili Industrial's products mainly used?

Q7: Can Aili Industrial provide FFU and EFU?

Q8: Can Aili Industrial provide air filters?

Q9: Can Aili Industrial provide clean room equipment at the same time?

Q10: How to consult Aili Industrial for customized equipment?

Engineering Consultation

Communicate your project needs

Welcome to provide equipment drawings, air treatment requirements, filtration configurations, power supply control conditions and procurement plans to communicate on product selection and customization. Our team of engineering experts will tailor an efficient air handling solution for you.

Efficient response: quickly connect your technical specifications and drawing design needs.

Precise selection: match the most suitable filtering configuration and power supply control conditions.

Full-cycle service: full professional support from solution communication to procurement plan implementation.

Submit project requirements

Technical Support & Articles

Purification supporting equipment technical support and Q&A center

Want to know more about purification equipment and technical support? Explore our professional articles and latest news, and get cutting-edge technology solutions in the industry.

FFU FAQs and Selection Guide

1.FFU manufacturer and procurement evaluation

This section introduces the evaluation methods of FFU manufacturers in terms of R&D, manufacturing, testing, customization and batch delivery, and helps purchasers check product configuration, performance data, quality management and technical support capabilities.

When selecting an FFU supplier, you should also understand the supporting conditions of the fan, motor, filter, control system and the complete machine, and confirm the prototype verification, factory inspection and delivery document requirements. Aili Industry covers motor manufacturing, independent research and development and production of fans, control system development, sheet metal processing, air filter manufacturing and complete machine assembly. It can carry out component matching and complete machine configuration communication based on project working conditions.

Looking for a long-term FFU supplier, how to evaluate after-sales spare parts and technical support?

How does long-term purchasing FFU evaluate suppliers? From fan motors, HEPA/ULPA filters, control board spare parts compatibility, fault diagnosis, technical version management to after-sales responsibilities and continuous supply, a procurement verification list is provided, and the collaborative support capabilities of Aili Industrial core components and complete machines are introduced.
What technical parameters should be included in the FFU purchase inquiry form?

When making an inquiry to the FFU manufacturer, in addition to the size and quantity, you must also confirm the application, installation hole position, air volume and speed, static pressure, filtration level, power supply and group control interface, test acceptance and delivery requirements. This article provides 20 FFU procurement inquiry templates that can be directly copied, and introduces Aili Industrial's 30,000 square meter manufacturing base and core component complete machine collaborative supporting capabilities.
How to evaluate the supplier's delivery time and production capacity before purchasing FFU in bulk?

For bulk purchases of hundreds, thousands, or even tens of thousands of FFU units, judging whether a supplier can deliver on time cannot just look at the factory area or advertised production capacity. This article provides a procurement review list focusing on effective production capacity, key materials, delivery nodes, first article verification, batch quality, group control requirements and batch delivery plans, and explains the project supporting methods in conjunction with Aili Industrial's independent manufacturing system.
How does semiconductor FFU cooperate with AMC control? How to divide the work between particle filtration and chemical filtration

HEPA or ULPA in semiconductor FFU mainly controls particulate matter; AMC gaseous pollution control requires separate evaluation of chemical filtration. The two filtration tasks are different, and increasing the particle filtration level cannot replace target gas treatment. This article explains pollution identification, resistance superposition, system division of labor, and organizes project verification data and on-site judgment points. Aili Industrial has complete production capabilities in FFU complete machines, high-efficiency filters and chemical filters. It can provide supporting solutions for particle filtration and chemical filtration for semiconductor projects, helping projects complete system division of labor and selection verification on the premise of clarifying the type of pollution.
How to do FFU batch traceability? How do the numbers of the complete machine, fan, filter and controller correspond to each other?

FFU batch traceability requires associating the complete machine number with the fan, motor, filter, controller and inspection records. Only the shipped quantity is recorded, which makes it impossible to accurately locate the configuration in the event of a failure or replacement of parts. This article explains the numbering rules, record associations, on-site continuation, and organizes project verification data and on-site judgment points.
What is the difference between FFU manufacturers and traders? How to determine the supply model when purchasing?

The main differences between FFU manufacturers and traders are the degree of manufacturing involvement, technical responsibility, supply organization and project support methods. When purchasing FFU, the actual production entities, sources of core components, product testing, non-standard customization and batch delivery capabilities should be verified. Aili Industrial has the collaborative capabilities of motors, fans, control systems, HEPA/ULPA filters, sheet metal processing and complete machine manufacturing, and can provide FFU selection and project supporting support for clean room engineering, semiconductor equipment and other industries.
When looking for an FFU manufacturer, what manufacturing capabilities should buyers first verify?

When choosing an FFU manufacturer, buyers should not only compare quotations and dimensions, but also need to verify the manufacturing body, source of core components, matching capabilities of fans and filters, control systems, quality inspection, non-standard customization and batch delivery capabilities. Aili Industrial has a manufacturing base of approximately 30,000 square meters, covering motors, fans, control systems, filters, sheet metal and complete machine manufacturing. It can provide FFU products and project supporting support for clean rooms, semiconductor equipment and other industries.
What space and cleanliness requirements need to be considered when using FFU in EFEM equipment?

The internal space of EFEM equipment is compact, and FFU needs to meet the internal clearance, air circulation path and cleanliness level requirements. The EFEM microenvironment usually requires high cleanliness, and the FFU layout needs to be coordinated with the wafer handling mechanism, return air path, and pressure control. This article explains space verification, airflow organization, and cleanliness levels, and organizes project verification data and on-site judgment points. Aili Industrial has complete production capabilities in FFU complete machines and equipment-side supporting, and can provide ultra-thin or customized air supply solutions based on the internal structure of EFEM. Welcome to contact Aili Industrial for project support.

2.SMT, PCB, electronics and display panel FFU

This section introduces the application of FFU in SMT workshops, PCB production, electronic assembly and display panel manufacturing, focusing on answering questions such as clean air supply range, equipment top installation, wind speed setting, filter configuration and control interface.

Electronic manufacturing projects need to determine the FFU plan based on the sensitivity of the product to particle pollution, work station layout, equipment shielding and maintenance space. For placement machines and other space-limited equipment, the EFU package can also be evaluated based on structural conditions. Aili Industrial can provide FFU, EFU and related filtering and control configuration support according to the needs of the workshop or equipment.

How to avoid affecting the maintenance, opening and safety interlocking after installing FFU on SMT equipment

When installing FFU on SMT equipment, the cover opening trajectory, maintenance actions and safety interlocking should be checked at the same time. Just confirming that the equipment can be placed on the top may still affect operator inspection or the protective function of the original equipment. This article explains space verification, interlocking boundaries, trial installation verification, and organizes project verification data and on-site judgment points. Aili Industry adopts a full industry chain production and customization model, which can match the FFU machine, filter, controller and installation structure according to equipment conditions, helping electronics factories take into account clean air supply, maintenance space and safe operation in a limited space.
What parameters do you need to focus on when using FFU in an SMT workshop?

When using FFU in an SMT workshop, it is necessary to check the air volume, static pressure, filtration level, noise, air supply uniformity and control method based on process dust generation, equipment heating and operating actions. Parameters should be compared between the whole machine and the system, not just a single value. This article explains parameter verification, working condition correspondence, system cooperation, and organizes project verification data and on-site judgment points. Aili Industrial has complete production capabilities in FFU supporting areas in the electronics industry and can provide selection solutions based on SMT workshop conditions. Welcome to contact Aili Industrial for project support.

3. Semiconductor clean room FFU application

This section focuses on wafer manufacturing, semiconductor front-end processes, advanced packaging and related clean areas, and introduces the wind speed uniformity, filtration level, ceiling layout, operational stability and centralized control requirements of FFU.

To configure FFU in a semiconductor clean room, the target particle size, cleanliness, air flow organization, return air path and filter resistance need to be incorporated into the design. The overall cleanliness effect cannot be judged based on filtration efficiency alone. Aili Industry can provide matching selection support for FFU, HEPA, and ULPA filters based on the installation conditions, air volume, static pressure, and control requirements of different process areas.

How does semiconductor FFU cooperate with AMC control? How to divide the work between particle filtration and chemical filtration

HEPA or ULPA in semiconductor FFU mainly controls particulate matter; AMC gaseous pollution control requires separate evaluation of chemical filtration. The two filtration tasks are different, and increasing the particle filtration level cannot replace target gas treatment. This article explains pollution identification, resistance superposition, system division of labor, and organizes project verification data and on-site judgment points. Aili Industrial has complete production capabilities in FFU complete machines, high-efficiency filters and chemical filters. It can provide supporting solutions for particle filtration and chemical filtration for semiconductor projects, helping projects complete system division of labor and selection verification on the premise of clarifying the type of pollution.
What space and cleanliness requirements need to be considered when using FFU in EFEM equipment?

The internal space of EFEM equipment is compact, and FFU needs to meet the internal clearance, air circulation path and cleanliness level requirements. The EFEM microenvironment usually requires high cleanliness, and the FFU layout needs to be coordinated with the wafer handling mechanism, return air path, and pressure control. This article explains space verification, airflow organization, and cleanliness levels, and organizes project verification data and on-site judgment points. Aili Industrial has complete production capabilities in FFU complete machines and equipment-side supporting, and can provide ultra-thin or customized air supply solutions based on the internal structure of EFEM. Welcome to contact Aili Industrial for project support.

4.FFU parameters and performance

This section explains the meaning of parameters such as FFU air volume, wind speed, static pressure, input power, noise, and wind speed uniformity to help users understand the product parameter table and determine whether different configurations can meet actual air supply needs.

When comparing FFU performance, test conditions, filter configuration, operating speed and corresponding operating points should be confirmed. Rated air volume, maximum air volume and actual air volume after installation are not the same. Aili Industrial can check the fans, filters, box air ducts and control settings around the agreed working conditions to provide support for product selection and parameter confirmation.

What is the difference between FFU external static pressure and fan full pressure? How to unify parameter comparison

The external static pressure of the FFU machine and the total pressure of the fan represent different pressure calibers. The selection should clearly define the measurement boundary, whether it contains a filter and the target air volume. The full pressure of the bare fan should not be directly regarded as the static pressure of the whole machine that can be used by the system. This article explains boundary confirmation, working point correspondence, complete machine verification, and organizes project verification data and on-site judgment points. Aili Industry has complete production capabilities in FFU complete machines and high-efficiency filters. It can provide air volume, static pressure and power data of the same caliber during the complete machine test, helping the project party complete parameter comparison and selection verification under unified conditions.
What parameters should FFU focus on when using EC motors?

When FFU uses EC motors, it needs to pay attention to energy efficiency, speed regulation method, communication interface, protection function and operating range. EC motors are not just about power, control signal matching and speed range also affect system operation. This article explains energy efficiency verification, speed matching, communication configuration, and organizes project verification data and on-site judgment points. Aili Industry has independent R&D and production capabilities for EC motors and drives, and can provide matching motor and controller solutions according to project needs. Welcome to contact Aili Industry for project support.
Can FFU rated power directly represent actual power consumption?

Rated power cannot be directly equated to long-term operating power consumption. The actual energy consumption is also related to rotation speed, static pressure, filter resistance, operating mode and working time. When evaluating FFU operating costs, the input power and annual operating hours in working, on-duty and low-speed modes should be measured separately.
What does the FFU static pressure parameter represent? Why should we pay attention when selecting?

FFU static pressure reflects the equipment's ability to overcome the resistance of filters, boxes and external systems. When the static pressure is insufficient, even if the nominal air volume of the fan is large, it may not be able to maintain the target air supply volume on site. Therefore, the available static pressure corresponding to the target air volume should be checked when selecting the model.

5.FFU installation, maintenance and life cycle management

This section introduces FFU ceiling installation, fixed supports, sealed connections, electrical wiring, filter replacement and daily inspection methods to help project personnel incorporate installation conditions and later maintenance requirements into equipment selection in advance.

FFU operation management should pay attention to air volume changes, filter resistance, abnormal noise, vibration and control status, and arrange maintenance based on test results and process requirements. Aili Industrial can assist in confirming the installation interface, maintenance space and spare parts configuration based on the needs of top maintenance, indoor side maintenance and detachable structure.

How much space does it take to replace the filter with a detachable FFU? How to check the actual replacement path

The maintenance space of the down-mounted FFU should be confirmed according to the operation path of the filter element, compression mechanism, tools and personnel. There is no uniform distance that applies to all structures. Actual drawings should be used for replacement simulation when selecting models. This article explains action disassembly, on-site shielding, trial replacement and verification, and organizes project verification data and on-site judgment points. Aili Industry has complete production capabilities in FFU complete machines and maintenance structures. It can provide detachable structural solutions based on ceiling conditions and maintenance requirements, helping projects confirm the removal path during the selection stage and reducing later maintenance difficulties.
How should the air volume and static pressure match when FFU is used for filter pressure difference?

After the pressure difference increases, the fan speed can be adjusted within the allowable range to compensate for part of the air volume loss, but the speed cannot be increased indefinitely. If the pressure difference is close to the replacement criterion or the equipment power and noise increase significantly, the filter should be checked and replaced.
How should the filter be selected when FFU is used for filter pressure difference?

When selecting a model, you should not only confirm the air volume under the initial resistance, but also evaluate whether the FFU can maintain the basic air supply demand after the resistance gradually increases. The fan and control system need to retain appropriate adjustment capabilities to avoid a rapid drop in air volume after the filter has been used for a period of time.
Filter pressure difference What parameters need to be paid attention to most when using FFU?

The filter's initial pressure difference, operating pressure difference, recommended final resistance value, corresponding air volume and fan speed should be recorded. It is not enough to record the pressure difference alone. It is necessary to combine the changes in air volume and operating time to determine the filter status and replacement time.

6.FFU comparison and selection decision

This section compares the structural and application differences between FFU and EFU, BFU, high-efficiency air supply vents and other clean air supply equipment. It also introduces the selection methods of AC, DC, EC power solutions and different maintenance structures.

Equipment comparison needs to be based on the same cleanliness goals, air volume and static pressure, installation conditions and operating requirements, and comprehensive evaluation of control methods, maintenance convenience and usage costs. Aili Industrial has the ability to support multiple types of clean air supply equipment and core components, and can assist in clarifying equipment types and configuration directions based on project conditions.

The quotations for FFU with the same specifications are quite different. Which configurations should be compared when purchasing?

The quotations of two FFUs with the same appearance and dimensions are not necessarily directly comparable. Procurement should verify the actual operating conditions of the fan motor, HEPA/ULPA rating and resistance, structural materials, control methods, detection range, after-sales and delivery responsibilities. This article provides a quotation verification form with the same conditions to help clean engineering contractors, equipment manufacturers and bulk purchasing customers find the real configuration differences.
How to choose between FFU and laminar flow hood? Comparison of protection scope, enclosure structure and installation methods

FFU is a unit that provides filtered air supply. Laminar flow hoods usually also include enclosures, supports and operating area structures. The selection should be judged based on the scope of protection required and the installation conditions. It cannot be considered interchangeable just because they are equipped with high-efficiency filters. This article explains product boundaries, protection objects, and maintenance conditions, and organizes project verification data and on-site judgment points. Aili Industry has complete production capabilities in FFU complete machines and clean equipment, and can provide supporting solutions for air supply units or local clean devices based on project protection objects and installation conditions.
What are the application characteristics of AC, EC and DC FFU?

AC, EC and DC FFU have their own characteristics in terms of speed adjustment method, energy efficiency, starting characteristics and control matching. AC FFU is suitable for simple fixed-speed scenarios, and EC and DC FFU are suitable for projects that require speed adjustment, group control or long-term operation. This article explains the motor differences and scene correspondence, and organizes the project verification data and on-site judgment points. Aili Industry has complete self-research capabilities in FFU motors and control systems, and can provide AC, EC and DC FFU configuration solutions. Welcome to contact Aili Industry for project support.
How should the air volume and static pressure be matched when FFU is used with FFU and high-efficiency air supply vents?

FFU should determine the air volume and static pressure based on the overall fan performance, filter resistance and target operating point; the efficient air supply outlet needs to be calculated from the total air volume of the centralized air supply system, pipe resistance and terminal residual pressure. The same selection method cannot be directly applied to the two.

7. Lithium battery, photovoltaic and new energy FFU

This section introduces the application of FFU in lithium battery, photovoltaic and new energy manufacturing, focusing on process particle control, air supply speed, filter load, continuous operation and production equipment supporting requirements.

New energy projects need to determine the configuration based on process dust generation, temperature and humidity conditions, equipment layout and target air supply range. When high wind speed, anti-static or other special requirements are involved, the fan performance, filter area and structural conditions should be checked simultaneously. Aili Industrial can carry out customized communication on FFU wind speed, size, filtration and control solutions according to project requirements.

How to perform partition control on multiple FFUs in a lithium battery clean environment?

It can be partitioned according to production lines, process sections, rooms or operating shifts, and work, duty and shutdown status can be set respectively. The zoning plan needs to be coordinated with the air supply and return air, room pressure difference and equipment start and stop logic to prevent local shutdowns from affecting adjacent areas.
How to configure the FFU filter when there is a lot of dust in the lithium battery workshop?

When the dust load is high, pre-filtration measures can be set according to particle characteristics, and an end filter with appropriate dust holding capacity and resistance characteristics can be selected. Changes in pressure difference and air volume should be recorded during operation to avoid rapid blockage of the filter, which will lead to a continued decrease in air supply volume.
How should FFU be selected under the high air volume demand of lithium battery production line?

High air volume projects should not only increase the fan speed, but also check the static pressure, power, noise and wind speed uniformity under the target air volume. For special production lines, high-wind speed FFU can be configured according to space and process requirements, but the operating status of the entire machine should be confirmed through prototype testing.
What should we focus on when choosing FFU for a lithium battery clean workshop?

Lithium battery workshops should focus on dust load, target wind speed, filter dust holding capacity, continuous operation time and maintenance cycle. Some production lines also require higher air supply volume, so the FFU fan residual pressure, filter resistance and structural protection requirements should be checked at the same time.

8.ISO cleanliness level and FFU configuration

This section introduces the relationship between ISO cleanliness level and FFU configuration, and answers questions about filter selection, air supply volume calculation and equipment layout under Class 100 clean areas, ISO 5 clean rooms and other clean targets.

The cleanliness level evaluates the concentration of particles in the air under specified conditions and cannot be guaranteed by a certain FFU or filter level alone. The actual configuration also needs to be combined with pollution load, airflow organization, sealing and on-site testing results. Aili Industrial can assist in checking FFU air volume, quantity, filtration level and control requirements based on the project's cleanliness goals.

What is the difference between FFU rated power and actual power consumption?

FFU rated power represents the power information under specific rated conditions. The actual power consumption depends on the input power, running time and control status. To compare operating costs, the data of the entire machine under the same load should be used, and the annual cost cannot be directly calculated from the motor nameplate.
Why should we look at the complete performance curve when selecting FFU?

The FFU complete performance curve can display the air volume and operating range under different resistances, helping to determine whether the equipment is suitable for the actual working point. Just looking at the maximum air volume or maximum pressure cannot confirm the air supply, power and regulation capabilities under the target conditions.
What does FFU external static pressure mean?

FFU external static pressure describes the pressure conditions that allow the external air path to overcome the resistance of the entire machine under the specified flow rate and test configuration. It is not the maximum pressure of the fan and needs to be understood in combination with the filter configuration, connection position and performance curve.
Is FFU's nominal air volume tested with a filter?

Whether the FFU nominal air volume includes the filter load shall be subject to the model data and test conditions. The air volume of the no-load fan cannot be directly used as the air volume of the whole machine. The filter grade, resistance, speed and external pressure conditions should be confirmed when purchasing.

9.FFU clean engineering application

This section introduces the engineering applications of FFU in clean workshops, clean corridors, clean sheds and local clean areas, and helps users understand the cooperative relationship between FFU and air supply, return air, pressure difference and ceiling systems.

Project configuration needs to comprehensively consider area area, floor height, personnel activities, process dust and air return paths to avoid local insufficient air supply or air flow short circuit. Aili Industrial can provide selection support in terms of FFU specifications, filter configurations, installation interfaces and zone control based on the conditions of new construction and renovation projects.

Why is EC FFU suitable for clean rooms that require speed regulation and centralized control?

EC FFU is suitable for clean rooms that require speed regulation and centralized control, because the EC motor maintains high efficiency in a wide speed range, supports analog and communication speed regulation, and is easy to access the group control system. This article explains the speed regulation range, energy efficiency verification, group control supporting facilities, and organizes project verification data and on-site judgment points. Aili Industry has independent R&D and production capabilities for EC motors and drives, and can provide EC FFU and group control supporting solutions. Welcome to contact Aili Industry for project support.
How should the air volume and static pressure match when FFU is used in clean corridors?

The FFU air volume should meet the corridor air supply and pressure difference requirements, while the static pressure must overcome the filter and installation resistance. The position of the return air outlet needs to ensure that the air can flow in the designed direction to avoid local short circuit of the supply air and insufficient ventilation at the far end.
How should filters be selected when FFU is used in clean corridors?

Filtration levels should be determined based on adjacent clean areas, material or personnel traffic risks, and project standards. Corridor operating time, dust load and maintenance conditions should also be considered when selecting filters to avoid a mismatch between efficiency levels and actual control targets.
How should the specifications and quantity of FFU be determined for clean corridor projects?

The quantity should be determined based on the corridor volume, target ventilation, pressure difference requirements and the actual air volume of a single unit, and then the location should be adjusted based on doorways, corners and high-frequency traffic areas. Long and narrow corridors require special attention to the air volume distribution and return air distance along the way.

10.FFU test inspection and acceptance

This section introduces the testing content of FFU air volume, wind speed uniformity, power, noise, and filter installation integrity, etc., to help procurement and engineering personnel clarify the verification methods for prototype testing, factory testing, and on-site acceptance.

Test records should indicate equipment configuration, operating gear, filter status, measuring point location, instrument and environmental conditions, so that data from different batches or different plans can be compared. FFU complete machine performance testing and clean room overall cleanliness acceptance need to be confirmed separately. Aili Industrial can cooperate with relevant complete machine parameter testing and data compilation according to the project agreement.

How should the air volume and static pressure match when FFU is used for air volume testing?

Static pressure reflects the FFU's ability to overcome filter and system resistance and maintain target air supply. It makes more sense to check the available static pressure corresponding to the target air volume, rather than comparing one static pressure number in isolation. Focusing on 'how to determine the operating status of FFU through air volume and static pressure testing', to deal with this problem, the project goals should be determined first, then the calculation or inspection sequence should be established around the design air volume and actual air volume, and finally verified through prototype, factory testing or field data. The key is to write the design values, equipment operating points and acceptance methods in the same set of technical conditions.
How should the filter be selected when FFU is used for air volume testing?

The filter should be comprehensively selected based on the cleanliness target, particle control requirements, target air volume, allowable resistance, installation structure and testing requirements; when the efficiency level changes, the resistance and fan operating point must be checked simultaneously. It is necessary to check the filter resistance, installation direction, sealing status and surface contamination, but the fan speed, control gear, air inlet obstruction and measurement method cannot be ignored. The source of the abnormality can be determined through joint judgment of pressure difference, air volume and electrical data.
How should the air volume test project determine the specifications and quantity of FFU?

Focusing on 'how to formulate an air volume test and sampling plan for multiple FFU systems', to deal with this problem, the project goals should be determined first, then the calculation or inspection sequence should be established around the design air volume and actual air volume, and finally verified through prototypes, factory tests or on-site data. The key is to write the design values, equipment operating points and acceptance methods in the same set of technical conditions. This article focuses on the design air volume and actual air volume, explains the data that need to be checked, project implementation sequence, acceptance records and common deviations, and helps clean engineering, equipment supporting and purchasing personnel form executable judgments.
What parameters do you need to pay most attention to when using FFU for air volume testing?

Test records should include equipment number, operating gear, measuring point location, wind speed or volume, filter status, test equipment and environmental conditions. Multiple devices also need to record the data of each device and the regional average value to facilitate the judgment of consistency and air volume balance.

11.FFU control and communication

This section introduces FFU single-machine speed regulation, partition management, centralized start and stop, running status viewing and RS485 communication, and answers common questions about device address, communication wiring, control interface and system expansion.

The FFU control plan needs to be determined together with the number of devices, power supply conditions, speed regulation requirements and operation plans, and the communication protocol and controller capacity must be checked. Aili Industrial independently develops a control system that can provide FFU operation management and control support based on single machine, regional or computer group control requirements.

How does FFU realize communication between multiple devices through RS485?

FFU implements communication between multiple devices through RS485, which requires unified wiring methods, address settings and communication protocols. Bus topology, termination resistors and shielding grounding all affect communication stability. This article explains wiring verification, address allocation, protocol matching, and organizes project verification data and on-site judgment points. Aili Industrial has complete self-research capabilities in FFU control systems and can provide RS485 communication solutions and debugging support. Welcome to contact Aili Industrial for project support.
How does the FFU centralized control system plan equipment addresses?

The device address of the FFU centralized control system should be planned in a unified manner based on the partition, installation location and communication protocol. Unclear or conflicting address allocation may cause the group control to fail to recognize the device or cause control errors. This article explains the numbering rules, partition correspondence, conflict troubleshooting, and organizes project verification data and on-site judgment points. Aili Industrial has complete self-research capabilities in FFU control systems and can provide address planning solutions based on project scale. Welcome to contact Aili Industrial for project support.
How should the air volume and static pressure match when FFU is used for 220V power supply?

Voltage stability, line voltage drop and control settings will affect the actual operating status of the motor, thereby affecting the FFU air volume and static pressure. During project debugging, power supply conditions and air performance should be measured simultaneously to avoid misdiagnosing electrical problems as filter or fan problems.
How should the specifications and quantity of FFU be determined for a 220V power supply project?

Focusing on 'How to calculate the number of loops and power distribution capacity for multiple 220V FFU projects', to deal with this problem, the project goals should be determined first, then the calculation or inspection sequence should be established based on dividing the total demand air volume by the actual air volume of a single machine, and finally verify through prototypes, factory testing or on-site data verification. The key is to write the design values, equipment operating points and acceptance methods in the same set of technical conditions. This article focuses on dividing the total demand air volume by the actual air volume of a single machine, explaining the data that needs to be checked, project implementation sequence, acceptance records and common deviations, helping clean engineering, equipment supporting and purchasing personnel to form executable judgments.

12.FFU transformation and expansion and system design

This section introduces the evaluation methods when adding FFU to old clean rooms, transforming AC power solutions, expanding control systems, and adjusting air supply systems to help project personnel identify the capacity and interface limitations of the original systems.

Before the transformation, the actual air volume, return air capacity, room pressure difference, ceiling load-bearing, power supply and distribution, and communication compatibility should be rechecked, and the airflow balance and operation effect should be verified after the transformation. Aili Industrial can assist in confirming FFU replacement, filter matching and control system adjustment plans based on existing equipment and site conditions.

How should the actual effect be verified before and after FFU energy-saving renovation?

The air volume, pressure difference, input power, operating time and cleanliness results before and after the transformation should be recorded under similar production loads and filter conditions. Only through the energy consumption per unit air supply volume and annual operation data can we judge whether the transformation has achieved the expected goals.
What conditions need to be evaluated before transforming traditional AC FFU into EC solution?

Before modification, record the air volume, static pressure, power, noise, operating time and control mode of the original system, and check the size, power supply and control compatibility of the new equipment. Energy saving judgments should be based on operating data under the same air supply task, rather than just comparing motor names.
Can the original control system continue to be used after adding FFU to the clean room?

It is necessary to check the controller capacity, communication address range, power supply loop, protocol compatibility and software partitioning capabilities. If the original system lacks expansion margin, some equipment can be retained and independent control areas can be added, or the control system can be upgraded as a whole.
What parameters need to be recalculated before adding FFU to an old clean room?

Before expansion, the total air supply volume, actual air volume of existing FFU, room pressure difference, return air capacity, ceiling load-bearing capacity, and power supply and distribution capacity should be recalculated. It is also necessary to evaluate whether the new equipment will change the original air flow balance and control system load.

13.FFU air flow and air volume design

This section introduces the methods for determining FFU design air volume, single unit working air volume, equipment quantity and air supply layout, focusing on answering issues such as air volume and static pressure matching, filter area, wind speed uniformity and return air organization.

The air volume design should be carried out based on the cleaning target, area or volume, process load and air flow pattern, and the actual air volume calculation configuration of a single unit under the target resistance should be used. Aili Industrial can help check the FFU air supply parameters and matching conditions of the whole machine based on the fan working point, filter resistance and box structure.

How should the air volume and static pressure match when FFU is used in a prototype?

The test should measure the air volume and static pressure corresponding to different resistance points under the agreed filter and rotation speed conditions. After the target operating point meets the requirements, the power, noise and wind speed distribution should also be checked to avoid verifying only a single air volume data.
How should filters be selected when FFU is used to design air volume?

Changes in the design air volume will change the filter face velocity and operating resistance, so the filter size, efficiency grade and rated air volume need to be rechecked. If the filter area is insufficient, problems such as increased resistance, increased noise, or shortened service life may occur.
How should the specifications and quantity of FFU be determined for a design air volume project?

First calculate the total air supply volume of the clean room, then select the specifications and determine the quantity based on the size of the ceiling and the actual working air volume of a single FFU. The calculation results need to be adjusted based on the equipment layout, return air position and regional cleanliness requirements, and cannot just be a simple division.
What parameters need to be paid attention to when designing air volume and using FFU?

The design air volume can be determined based on the room volume, ventilation requirements, one-way flow area, target wind speed and process dust volume. The calculation should also consider the effective air supply ratio, equipment occlusion, leakage and operating margin, and clarify the design status and acceptance status.

14.FFU clean engineering application

This section focuses on the FFU layout and debugging at the clean project site, introducing the air supply configuration of clean corridors, narrow areas, doorways and corners, as well as the impact of pressure differences and return air conditions in adjacent areas on the operating results.

On-site applications need to pay attention to airflow changes caused by equipment blocking, personnel passage, and door opening, and confirm the configuration effect through air volume balance and related testing. Aili Industry can provide technical support in FFU layout, zone speed regulation and on-site parameter verification based on regional structure and operation requirements.

Why is EC FFU suitable for clean rooms that require speed regulation and centralized control?

EC FFU is suitable for clean rooms that require speed regulation and centralized control, because the EC motor maintains high efficiency in a wide speed range, supports analog and communication speed regulation, and is easy to access the group control system. This article explains the speed regulation range, energy efficiency verification, group control supporting facilities, and organizes project verification data and on-site judgment points. Aili Industry has independent R&D and production capabilities for EC motors and drives, and can provide EC FFU and group control supporting solutions. Welcome to contact Aili Industry for project support.
How should the air volume and static pressure match when FFU is used in clean corridors?

The FFU air volume should meet the corridor air supply and pressure difference requirements, while the static pressure must overcome the filter and installation resistance. The position of the return air outlet needs to ensure that the air can flow in the designed direction to avoid local short circuit of the supply air and insufficient ventilation at the far end.
How should filters be selected when FFU is used in clean corridors?

Filtration levels should be determined based on adjacent clean areas, material or personnel traffic risks, and project standards. Corridor operating time, dust load and maintenance conditions should also be considered when selecting filters to avoid a mismatch between efficiency levels and actual control targets.
How should the specifications and quantity of FFU be determined for clean corridor projects?

The quantity should be determined based on the corridor volume, target ventilation, pressure difference requirements and the actual air volume of a single unit, and then the location should be adjusted based on doorways, corners and high-frequency traffic areas. Long and narrow corridors require special attention to the air volume distribution and return air distance along the way.

15. Clean FFU applications in medicine, biology and food

This section introduces the application of FFU in pharmaceuticals, biomedicine, medical equipment and food clean production, focusing on filter integrity, airflow organization, pressure differential coordination, cleaning maintenance and clean environment verification.

FFU configuration should be determined based on process risks, area cleanliness requirements and applicable management requirements of the project, and coordinated with the air conditioning system and production operation status. Aili Industrial can provide FFU product configuration support based on installation space, cabinet requirements, filtration levels and maintenance methods, and cooperate with the project to confirm relevant technology and testing conditions.

How to cooperate with cleanliness verification when using FFU in sterile production areas?

The FFU operating mode, air volume, filter integrity, room pressure difference and air conditioning system status should be confirmed before verification. During the verification process, wind speed, particle concentration, pressure difference and related test records need to be retained so that the equipment operating status and verification results can correspond to each other.
How to determine the number and layout of FFU in a medical device clean workshop?

The total air supply volume should be calculated first based on the workshop area, floor height, ventilation requirements and internal dust load, and then the quantity should be determined based on the actual air volume of a single FFU. When laying out, avoid obstruction by large equipment and coordinate with the return air position to form a stable airflow path.
How to choose FFU filter for biomedical clean environment?

Filter selection should be based on cleanliness level, risk area, detection requirements and system resistance, while confirming filter sealing, leak detection methods and replacement conditions. For areas with special biosecurity requirements, equipment plans need to be determined based on project risk assessment.
What factors should be considered when choosing FFU for a pharmaceutical clean room?

Pharmaceutical cleanrooms need to comprehensively consider cleanliness levels, room pressure differences, airflow organization, filtration integrity, cleaning and disinfection and verification requirements. The FFU configuration should also be coordinated with the operating strategies of the air conditioning system, production status and non-production status.

16.FFU energy saving and operating costs

This section introduces the FFU power solution, speed regulation strategy, work and duty modes, filter resistance and the impact of running time on energy consumption, helping users evaluate equipment purchase and long-term use costs.

The energy saving comparison should be carried out under the same air supply task and comparable working conditions, and calculated based on the actual input power, operating time, cleanliness and pressure difference requirements. Aili Industrial can support FFU operating parameter adjustment and energy-saving transformation plan evaluation through the collaborative matching of motors, fans, filters and control systems.

How should the air volume and static pressure match when FFU is used in working mode?

Mode switching should be performed in regional and time order to avoid room pressure fluctuations caused by a large number of FFU changing rotational speeds at the same time. Control can be optimized through delayed start, group switching and pressure difference feedback, and the switching process can be recorded during the commissioning phase.
How should the filter be selected when FFU is used in working mode?

In low-speed mode, the residual pressure provided by the fan is smaller. After the filter resistance increases, the air volume decrease may be more obvious. When setting the working and duty speeds, the resistance change of the filter from the initial state to the later period of use should be considered.
How should work mode projects determine the specifications and quantity of FFU?

Zone operation strategies can be formulated based on process areas, production shifts and pressure differences. The shutdown sequence cannot destroy the pressure difference between adjacent areas. The duty mode should also retain the necessary air circulation, and record the start and stop times and set values of each area.
What parameters do you need to pay most attention to when using FFU in working mode?

The working mode should meet the requirements for cleanliness, air volume and pressure difference under production conditions, while the duty mode should be combined with pollution control and energy consumption management settings during non-production periods. Both modes require clear rotation speed, operating period and switching conditions.

17.FFU filter and HEPA/ULPA selection

This section introduces the selection method of HEPA and ULPA filters for FFU, and explains the relationship between filtration grade, filter material, size, rated air volume, resistance, sealing and leak detection requirements.

Filter selection should be determined based on the target particle control requirements and FFU operating point. After the efficiency level is improved, the resistance, air volume and speed adjustment margin need to be rechecked. Aili Industrial has the ability to manufacture air filters and FFU complete machines, and can collaboratively confirm filtration, fans and installation sealing solutions based on project conditions.

How should FFU choose based on project requirements when using HEPA and ULPA?

Whether FFU uses HEPA or ULPA filters should be judged based on the target cleanliness level, process sensitivity and filter resistance. ULPA is more efficient, but the resistance may increase, and the fan operating point needs to be checked. This article explains efficiency correspondence, resistance verification, scenario selection, and organizes project verification data and on-site judgment points. Aili Industry has complete production capabilities in FFU complete machines and high-efficiency filters, and can provide HEPA and ULPA filter configuration solutions. Welcome to contact Aili Industry for project support.
Will the air volume be affected when the FFU filter level is increased?

After the filter grade is increased, the density and structural changes of the filter material may increase the resistance and affect the FFU operating point and air volume. To improve the filtration level, you can't just look at efficiency, but also need to recheck the fan static pressure and air volume. This article explains resistance changes, working point verification, complete machine matching, and organizes project verification data and on-site judgment points. Aili Industrial has complete production capabilities in FFU complete machines and high-efficiency filters, and can cooperate with the project to check the matching of filters and complete machines. Welcome to contact Aili Industrial for project support.
How should filters be selected when FFU is used on prototypes?

The filter size, sealing method, efficiency, initial resistance and actual air volume should be checked, and the installation effect should be confirmed through leak detection and wind speed testing. After replacing different filters, also observe whether the air volume, power and noise change significantly.
Why do FFUs usually need to be configured with HEPA or ULPA filters?

FFU requires a terminal filter to remove fine particles from the supply air to provide filtered air to the clean area. The specific selection of HEPA or ULPA filters depends on the cleanliness level and process requirements, and must match the air volume, static pressure and installation sealing method of the FFU.

18.FFU Selection and Purchasing Guide

This section organizes the key conditions that need to be confirmed before purchasing FFU, including application scenarios, installation dimensions, air volume and speed, static pressure, filtration level, box material, power supply, control and maintenance methods.

When selecting, the project requirements should be converted into verifiable technical parameters, and the target working point, configuration scope and acceptance method should be confirmed. Aili Industry can combine conventional FFU, DC FFU, EC FFU, stainless steel FFU and detachable FFU and other products to provide standard configuration and non-standard customized selection support.

What tests should be done to verify the FFU prototype before entering into bulk purchase?

What should FFU prototypes be tested before entering bulk purchase? Detailed explanation of verification items such as appearance interface, air volume and speed uniformity, static pressure, HEPA/ULPA filter sealing, electrical group control, noise vibration and continuous operation, etc., provide FFU first article inspection and mass production release list, and introduce Aili Industrial complete machine testing and manufacturing supporting capabilities.
How to choose FFU? What parameters need to be confirmed before purchasing?

FFU selection needs to comprehensively consider the application scenario, installation size, air volume, wind speed, HEPA/ULPA filtration level, filter and system resistance, AC/DC/EC power solution, control method, box structure and actual use environment. For space-limited applications such as semiconductor equipment, EFEM, and SMT, ultra-thin EFUs can be considered based on the equipment structure; for high wind speeds or higher cleanliness requirements, fans and HEPA/ULPA filters need to be rematched; for multiple FFU projects, FFU group control systems should be planned simultaneously. Aili Industrial can match FFU, EFU, filters and control systems based on actual project conditions.
How should the prototype project determine the specifications and quantity of FFU?

Prototypes can identify size, performance, control and installation issues before series production. The test conditions must be agreed in advance, including filter status, air volume point, static pressure, rotation speed and detection method, to avoid unclear prototype qualification standards.
What project information does FFU need to provide to the manufacturer before purchasing?

Before purchasing FFU, clean room area, floor height, target cleanliness, ceiling openings, installation quantity, air volume and speed, filtration level, material, power supply and control requirements should be provided. Non-standard projects should also provide equipment drawings, interface dimensions, maintenance directions and communication requirements so that manufacturers can complete accurate selection.

19.FFU project selection and solutions

This section focuses on new clean rooms, semiconductor projects, local clean areas and equipment supporting needs, and introduces how to integrate cleanliness goals, space conditions, air supply performance, filtration systems and control requirements into an FFU project plan.

Project selection requires coordinating the configuration differences, equipment layout, phased production and later expansion needs of each region, and verifying key parameters through prototypes or agreed tests. Aili Industrial can rely on its motor, fan, filter, control and complete machine manufacturing supporting capabilities to support project configuration confirmation and customized development.

Which clean equipment and local purification scenarios is DC FFU suitable for?

DC FFU is suitable for clean equipment and local purification scenarios that require fine speed regulation, group control access, low noise or long-term continuous operation. Scenarios such as equipment-side supporting, SMT workstations, and inside semiconductor equipment have higher requirements for speed regulation and volume, and DC FFU has a good matching degree. This article explains scenario correspondence, parameter verification, and organizes project verification data and on-site judgment points. Aili Industrial has complete self-research capabilities in FFU motors and control systems and can provide DC FFU configuration solutions. Welcome to contact Aili Industrial for project support.
How should the air volume and static pressure be matched when FFU is used in new semiconductor projects?

First determine the air supply volume and target wind speed according to the process area, then calculate the filter and system resistance, and select the FFU that can operate at this working point. The control system is planned according to area, quantity, operation mode and expansion demand, so that the air performance and group control strategy can be implemented simultaneously.
How should filters be selected when FFU is used in new semiconductor projects?

Filter selection should be determined based on process sensitivity, target particle size, cleanliness level, leak detection requirements and acceptable resistance. Different levels can be used in different process areas, but the testing standards should be unified and the performance of the filter and FFU fan should be matched.
How should the specifications and quantity of FFU be determined for new semiconductor projects?

The specifications and quantity should be determined based on the area of the process area, target air flow, equipment layout and the actual air volume of a single FFU. The ceiling layout needs to take into account the uniformity of wind speed, lighting fire-fighting facilities, maintenance access and subsequent equipment expansion.

20.FFU project budget, technical agreement and delivery

This section introduces the preparation method of FFU project budget, procurement list, technical agreement and delivery materials, and helps purchasers to clarify the costs and scope of responsibilities of equipment, filters, controllers, accessories, installation, commissioning and testing.

The technical agreement should specify the target air volume and corresponding static pressure, filter configuration, power supply control, installation interface, allowable deviation and test conditions, so that the procurement requirements can be implemented into delivery and acceptance. Aili Industrial can cooperate with the delivery of FFU prototypes, batch products and related materials based on the confirmed configuration, drawings and technical requirements.

How should the air volume and static pressure be written in the FFU technical agreement?

The technical agreement should specify the target air volume, corresponding static pressure, filter status, fan speed, allowable deviation and test method. The maximum air volume and the maximum static pressure cannot be simply juxtaposed, otherwise it may form a working point that cannot be reached at the same time.
How should the FFU purchase list describe the model, quantity and configuration?

The purchase list should itemize the equipment name, specifications and sizes, quantity, air volume and static pressure, filter, box material, power mode, control interface and accessories. Non-standard equipment should also be associated with confirmation drawings to avoid just writing an internal model without a technical definition.
What technical information do I need to prepare before making an inquiry for the FFU project?

Inquiry information should include quantity, overall dimensions, air volume, static pressure, filtration level, material, power supply, control method, installation direction and acceptance requirements. The more complete the information, the easier it is to effectively compare the configurations quoted by different suppliers.
What equipment and implementation costs should be included in the FFU project budget?

In addition to the complete FFU machine, the budget should also include the cost of filters, controllers, communication equipment, cables, installation auxiliary materials, transportation, debugging, testing and spare parts. Renovation projects also need to consider costs such as dismantling, interface adjustments, and shutdown construction.

What parameters need to be provided for FFU selection?

Parameter category	What needs to be provided	Parameter category	What needs to be provided
Usage scenarios	Clean room, clean shed or equipment end	target cleanliness	ISO level or project requirements
Installation space	Ceiling dimensions, openings and available heights	Single unit requirements	Air volume, wind speed and static pressure
Filtering requirements	H13, H14, U15, U16, etc.	Cabinet requirements	Galvalume plate, spray plastic or stainless steel
Power supply conditions	Voltage, frequency and wiring methods	Speed regulation method	Multi-speed, stepless or centralized speed regulation
control requirements	Single machine, regional or computer group control	Operating conditions	Working hours, temperature, humidity and environment
Maintenance method	Top maintenance or indoor side maintenance	Customized requirements	Dimensions, interfaces and special construction

About Aili Industrial FFU

Aili Industry focuses on the R&D and production of FFU, EFU and clean room purification equipment, covering fans, motors, control systems, sheet metal processing, air filters and complete machine assembly.

Relying on a 30,000-square-meter manufacturing base, Aili Industrial can provide products based on clean room area, installation space, cleanliness level, air volume, static pressure, filtration efficiency and control requirements. Conventional FFU , EC DC FFU、 Ultra-thin FFU、 stainless steel FFU、 Explosion-proof FFU、 Detachable FFU and non-standard customized FFU .Selection support for

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