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Integrating the fan, filter and box structure, explosion-proof motors, HEPA/ULPA filters and corresponding control methods can be configured according to the hazardous area, cleanliness level, installation space and project requirements.
Explosion-proof configuration · HEPA filtration · Flexible customization · FFU integrated air supply
Applicable directions: Chemical industry·Pharmaceutical·Painting·Powder processing·Special clean environment
Explosion-proof FFU (Explosion-Proof Fan Filter Unit) is a kind of clean air supply equipment for special environments.
Like ordinary FFU, explosion-proof FFU uses a fan to drive air through a high-efficiency filter to provide filtered air for clean spaces; the difference is that for application scenarios where there may be risks such as flammable gases, steam or dust, corresponding explosion-proof electrical configurations can be adopted according to project requirements.
Typical structures include:
FFU cabinet
Explosion-proof motor or fan assembly that meets project requirements
centrifugal impeller
HEPA/ULPA filter
Current sharing and diversion structure
Electrical and control components
Air → Fan → Uniform flow → HEPA → Clean air
Ambient air enters the equipment from the FFU air inlet side.
The fan assembly generates the required airflow, and the corresponding motor and electrical system are configured according to the project requirements.
The internal flow guide and flow equalization structure help the air enter the filter area evenly after passing through the fan.
The air passes through a HEPA or ULPA filter to filter particulate matter in the air.
The filtered air is sent into the clean area from below the FFU or from the designated air supply direction.
Note: The specific fan, motor, explosion-proof level, filter level and control method need to be determined according to actual project conditions.
Parameter items |
Reference configuration |
optional/customized |
|---|---|---|
product type |
Explosion-proof FFU |
Customized according to project |
FFU size |
575 × 575 × 360 mm |
Support size customization |
Box material |
SUS304 stainless steel |
SUS201 / SUS316 / SUS430 / other applicable materials |
Cabinet thickness |
1.0 mm reference configuration |
Can be adjusted according to project requirements |
filter size |
570 × 570 × 70 mm reference configuration |
Match according to FFU size |
filter type |
HEPA |
HEPA/ULPA etc. |
filter level |
H14 reference configuration |
H13/H14/Other applicable grades |
filter material |
fiberglass |
Select based on filtering requirements |
fan |
Explosion-proof motor configuration |
Choose according to project requirements |
impeller |
Aluminum impeller reference configuration |
Match according to fan system |
power supply |
220V/50Hz reference configuration |
Can be confirmed according to project requirements |
Control method |
Single speed reference configuration |
Configure according to project needs |
Installation method |
Horizontal installation |
Horizontal/vertical and other installation forms |
working temperature |
Confirm according to specific configuration |
Selection according to project environmental conditions |
The above parameters are used for product selection reference. Explosion-proof FFU is equipment that needs to be configured according to the use environment. The final size, air volume, wind speed, motor, explosion-proof configuration, filter level, power supply and control method should be based on the project technical conditions and the final confirmed product specifications.
For clean air supply involving solvents, flammable gases or other special process environments.
It is suitable for some clean production areas involving flammable solvents, powders or special process requirements.
Used in production areas with requirements for air cleanliness and special environmental conditions.
For process areas with dust control requirements, corresponding clean air supply equipment can be configured based on the actual environment.
The FFU scheme is designed according to the process environment, cleanliness level and hazardous area requirements.
For places with special electrical environments and clean air supply requirements, project selection can be made based on site conditions.
The selection of explosion-proof FFU cannot only look at the size and air volume of the FFU, but also needs to be comprehensively confirmed based on the actual use environment.
First, confirm which hazardous area the equipment installation location belongs to, and whether the site involves flammable gas, vapor or dust environment.
Determine motor and related electrical component requirements based on hazardous area, media category, temperature group, and applicable project standards.
Select the corresponding filter level according to the air cleanliness requirements of the process, such as H13, H14 or other applicable filtration solutions.
Determine the fan parameters based on the clean space area, air supply method, filter resistance and system static pressure.
Determine the length, width, and height dimensions of the FFU based on the ceiling module, equipment space, and on-site structure.
For corrosive environments or places that require cleaning and maintenance, materials such as SUS304 and SUS316 can be selected according to project conditions.
Choose stand-alone control, centralized control or other communication control solutions according to project automation requirements.
The explosion-proof configuration, certification and applicable standards of the final product should be confirmed based on the country/region where the equipment is installed and the specific project requirements.
Select the appropriate motor configuration based on the project's hazardous area and related electrical requirements.
Material solutions such as SUS304 and SUS316 can be used to adapt to different environments and cleaning and maintenance requirements.
Supports high-efficiency filtration solutions such as HEPA, and selects corresponding filters according to the cleanliness level.
Match according to target air volume, static pressure and FFU structure.
The internal airflow organization improves the air distribution in front of the filter and provides a structural foundation for stable air supply.
Filters and related components can be maintained and replaced according to the product structure. The specific maintenance methods are subject to the actual model.
Explosion-proof FFU is usually not a simple standardized selection product.
Different projects may have different requirements in terms of hazardous areas, cleanliness levels, air volume, static pressure, installation space, materials, power supply and control methods.
Therefore, Aili Industrial can configure FFU according to project parameters:
01 |
02 |
03 |
04 |
05 |
06 |
07 |
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Danger area |
Cleanliness level |
Air volume/static pressure |
Explosion-proof configuration |
filter |
Installation dimensions |
Control method |
If you are selecting an explosion-proof FFU, it is recommended to provide the following information:
Use industry
Installation area
Hazardous area classification
Combustible media type
Cleanliness level
Target air volume
target wind speed
Overall dimensions
Installation method
Power conditions
control requirements
Required certifications or standards
Based on this information, product matching can be made more accurately.
The explosion-proof FFU is a fan filter unit configured for clean air supply needs in special environments. Corresponding explosion-proof motors, electrical configurations and high-efficiency filters can be used according to project requirements.
Both can provide clean air through fans and filters, but explosion-proof FFU needs to further consider the hazardous area in the installation environment, electrical explosion-proof requirements and relevant applicable standards, so its motor and electrical configuration need to be selected according to the specific project.
Can. Explosion-proof FFU can be equipped with corresponding HEPA filters according to the cleanliness level requirements, such as H13, H14, etc. The specific filtration level needs to be determined based on the actual cleanliness requirements.
Can. Explosion-proof FFU can be sized according to the clean room ceiling module, equipment space and project installation conditions.
Can. SUS304 can be used as a common box material solution; if the project has other requirements for corrosion resistance or materials, suitable materials can also be selected according to the actual environment.
Whether to use EC motors needs to be comprehensively confirmed based on explosion-proof requirements, control methods, installation environment and project certification conditions. It cannot be determined solely based on energy-saving needs.
Common application directions include chemicals, pharmaceuticals, painting, powder processing, fine chemicals, and other applications that require both clean air supply and special electrical environments.
This cannot be simply judged. Whether it is suitable for Zone 2 needs to be confirmed based on the explosion-proof configuration of the specific product, the scope of certification, and the classification of on-site hazardous areas. Actual projects should be subject to final product certification and technical documents.
It is recommended to provide information such as hazardous area, media type, cleanliness level, air volume, static pressure, installation size, power supply and control requirements, etc., and the engineering staff will match it according to the project conditions.
Can. Aili Industrial can customize the FFU size, box material, filter specifications, fan configuration and control method according to project requirements.
Aili Industry provides multiple types of FFU, which can be classified and selected according to maintenance methods, functional characteristics, application scenarios and size specifications, and non-standard customization is also supported.
Maintenance personnel can complete filter replacement on the ground without climbing, effectively reducing the risk of climbing operations.
It adopts the bottom replacement filter design, which takes less time to replace a single filter. It is suitable for clean rooms with a floor height of not less than 2.4m. The air volume range is 900-1500m³/h, the operating noise is ≤58dB, and the box material can be selected from different materials such as 304 stainless steel, galvanized plate, aluminum plate, and painted steel plate.
Maintenance personnel operate from the technical mezzanine above the suspended ceiling, without occupying the working space inside the clean room.
The top filter replacement method is used, which is the standard maintenance method of traditional FFU. It is suitable for clean rooms with sufficient maintenance space above the ceiling, and is suitable for conventional clean room ceiling installation scenarios.
Adapt to semiconductor micro-environments such as EFEM and Load Port to meet the cleaning needs of spaces with limited floor heights.
Specially developed for semiconductor manufacturing equipment and compact spaces, the thickness of the fan body is compressed to 70mm. It adopts self-developed DC motor and high-precision dynamically balanced aluminum alloy wind wheel. Optional PTFE boron-free ultra-fine filter. The control interface supports RS485/Modbus protocol, and the cabinet material can be selected from lightweight aluminum alloy or stainless steel.
Equipped with a DC brushless motor, it can save 30%-50% energy compared to AC FFU, and supports stepless speed regulation and intelligent group control.
Driven by a DC brushless motor, the power conversion efficiency is higher, and the average power is about 60W-180W. Supports 0-100% stepless speed adjustment. The operating noise is about 52-58 decibels, which is 5-7 decibels lower than AC FFU. Supports RS485/Modbus protocol to access the central monitoring system.
The motor and electrical system meet the requirements of explosion-proof specifications and are specially designed for flammable and explosive environments such as lithium battery new energy sources.
Targeted optimization of equipment materials, motor selection and electrical design is carried out for the actual process sections and explosion-proof zones of the lithium battery production line. It adopts explosion-proof motor and anti-static box material to meet the requirements of relevant explosion-proof regulations. We have expedited customization for a new lithium battery production line and completed production, distribution and on-site commissioning within 5 days.
The anti-static FFU integrated static elimination device neutralizes airflow charges in real time to avoid damage to precision electronic products caused by electrostatic discharge.
In view of the characteristics of semiconductor and electronic manufacturing, anti-static treatment options are available for the box material and filter. By integrating a static elimination device, the ionized air produces positive and negative ions, effectively neutralizing static charges in the airflow. Optional anti-static composite coating stabilizes surface resistance and effectively reduces dust adsorption.
Aili Industrial Stainless Steel FFU all-stainless steel box is corrosion-resistant and not easy to breed microorganisms. It is suitable for scenes with high hygiene requirements such as medicine and food.
The box body is made of SUS304 or SUS316L stainless steel, which has strong corrosion resistance and oxidation resistance. It is suitable for scenes with high hygiene requirements such as the food industry, biomedicine, and corrosive gas environments. The surface is finely polished for easy cleaning and disinfection, and the structural design reduces gaps and dead corners.
The wind speed of Aili Industrial's high-volume FFU can be customized to more than 2m/s to meet the process requirements for high-volume air supply in precision coating, drying and curing.
It is suitable for process scenarios that have high requirements on air supply volume, such as precision coating, drying and curing and other processes that require strong airflow to carry heat. The motor power and fan selection are re-matched according to high air volume requirements to ensure low noise and stable operation under large air volumes.
It is specially customized for mainstream placement machines such as Panasonic, ASM, and Fuji. The height of the body can be customized.
It can be directly and seamlessly mounted on the safety cover on the top of the placement machine without modification. Optional static-removing models, models with screens, etc. In addition to Panasonic, it can also be adapted to ASM, Fuji, Yamaha and other brand models.
Designed for EFEM, Load Port, Sorter, Stocker, OHT and semiconductor cleaning equipment, and supports linkage control with equipment PLC.
It has high requirements for air flow uniformity, no vibration and long-term continuous operation, and is suitable for various semiconductor equipment communication protocols. Typical application scenarios include EFEM equipment front-end modules, wafer transfer box interfaces, wafer sorters, wafer storage systems, OHT crane internal micro-environments and semiconductor cleaning equipment, etc.
It is suitable for TFT-LCD, AMOLED and other panel production lines to meet the differentiated cleanliness requirements of Array, Cell and Module processes.
In panel manufacturing, tiny dust or fibers can cause defects such as bright spots, dark spots, and dead pixels. Aili Industrial FFU can form a stable vertical laminar air supply with a stable wind speed of 0.45m/s, ensuring optimal particle settling efficiency. For AMC gaseous molecular pollutants, chemical filters can be used to remove acids, bases and organic matter. The cleanliness can meet the requirements of ISO 4-5 for LCD production and ISO 3-4 for OLED production.
Aili industrial lithium battery industry-specific FFU is suitable for pole piece coating, battery core winding, electrolyte injection and other process links, and can easily cope with high dust environments.
In the production of lithium batteries, metal debris and conductive dust directly affect battery performance and safety. Aili Industrial Protection FFU unit is equipped with HEPA or ULPA filter to efficiently intercept dust and fiber pollutants. Explosion-proof FFU can be used in the liquid injection area to eliminate the risk of static sparks and ensure production safety.
Different projects have different hazardous areas, cleanliness levels, air volumes, and installation conditions. The explosion-proof FFU needs to be configured according to actual working conditions.
Send your project parameters to Aili Industrial and we can help you confirm:
Explosion-proof motor configuration · FFU size · HEPA filter · Air volume and static pressure · Box material · Control method · Installation plan
Industry of use:
Hazardous area:
Cleanliness level:
Target air volume:
FFU size:
Power supply:
Control method:
Contact Aili Industrial for advice on explosion-proof FFU selection.
The final configuration of the explosion-proof FFU needs to be confirmed based on the actual installation environment, hazardous area classification, flammable media type, temperature group, cleanliness level, air volume and applicable standards of the project location. Some dimensions and configurations on the page are for product selection reference. Actual product parameters, certification scope and applicable conditions are subject to the final technical documents and project confirmation results.
