How to customize non-standard EFU? Equipment drawings, performance parameters, interfaces and prototype confirmation

How to customize non-standard EFU? The starting point is not to draw a box shape first, but to freeze the equipment boundaries and acceptance conditions first. The available space inside the equipment, installation standards, air inlet and outlet directions, filtration levels, target air volume and static pressure, control interfaces, and maintenance routes. These conditions must be confirmed clearly before customization, and then the box structure, hole positions, and internal layout are determined. Make the appearance first and then add the performance. After installing the prototype, you will find that the air volume is insufficient or the interface is incompatible, making modifications more expensive. Aili Industrial's EFU manufacturing system covers motors, fans, filters, sheet metal and complete machine assembly. Non-standard projects can organize confirmation drawings, prototype verification and version solidification according to equipment drawings, and coordinate the structure, power and control conditions in the same manufacturing system. This is why many equipment manufacturers will refer to Aili Industrial's program description when customizing non-standard EFU.

Confirmation drawing: benchmarks, tolerances and interfaces should be clearly marked

The confirmation drawing of non-standard EFU is not just about the external dimensions. The location of the reference plane, the hole spacing and hole diameter tolerance of the installation holes, the size and direction of the air inlet and outlet, the width of the sealing surface, the maintenance space, and the installation position of the control module must be indicated on the drawing. The drawings only show the length, width and height, and deviations will occur during the processing and assembly stages. The cost of on-site modifications is much higher than the initial confirmation.

Ai Li industrialEFU products and customized configurations list structural descriptions and supporting interfaces by model. The equipment factory can directly correspond to the specific model during the customization stage, and check the confirmation drawing and the equipment general drawing on the same basis.

Performance parameters: air volume, static pressure, filtration and noise are determined together

The performance parameters of non-standard EFU do not give a separate air volume number. The target air volume, external static pressure, filter level and resistance, allowable noise, and temperature rise limits must be confirmed under the same working conditions. The internal air duct resistance and air outlet structure of the equipment will change the working point of the fan. If you only select the model based on the sample rating, the prototype may not meet the equipment requirements after installation.

For the calculation relationship between air volume and resistance, please refer toHow to calculate EFU rated air volume? The method in the air supply area, target wind speed and unit conversion method confirms the target air volume and system resistance together, instead of just giving a rated air volume.

Interface definition: Electrical, control and communication should be written clearly

The interfaces of non-standard EFU include power interface, control interface and communication interface. The power supply voltage and power, terminal definition, control signal form, communication protocol, address setting method, and alarm output form must be specified in the technical attachment. Just write 'supports speed adjustment' or 'can communicate'. It is not until the joint debugging stage that the protocol is found to be inconsistent, and the cost of rework is very high.

For projects involving control linkage, please refer toHow to implement EFU local speed adjustment? wiring, parameters, control logic and debugging methods , and terminals, signal ranges and exception logic are clearly written in the customization stage.Interface definitions in

Prototype verification: The first data determines batch configuration

For non-standard EFU new structure or new interface projects, it is advisable to make a prototype or first verification first. The prototype must be inspected for assembly interference, air volume, power, temperature rise, vibration and communication logic. It is confirmed that the performance and assembly are satisfactory before solidifying the batch configuration. The prototype data should be filed together with the confirmation drawings and technical attachments as the basis for inspection of subsequent batches.

In non-standard EFU projects, Aili Industries organizes prototypes or first unit verification according to equipment drawings, files assembly, performance and control test results together with confirmation drawings, and then solidifies batch configuration. Equipment factories complete prototypes and batches within the same manufacturing system, making it easier to maintain version consistency than cross-supplier coordination.

Version solidification: drawings, materials and control parameters must be consistent

After the prototype is approved, the confirmation drawing, bill of materials, control parameters and inspection records must be formed into a fixed version. Subsequent batches are executed according to the same version, and changes must be approved and synchronized to drawings and materials. If the version is not solidified, configuration deviations may occur in subsequent batches, and spare parts and maintenance may also be affected.

For projects involving batch delivery, please refer toWhen does a non-standard EFU box need to be customized? structural boundaries, technical protocols and acceptance points correspond to structural changes and batch configuration.The version management ideas in

How to form executable confirmation results

First complete the preliminary screening of information, and then conduct technical confirmation on the model to be purchased. Include confirmation diagrams, performance parameters, interface definitions, prototype verification and version solidification in the supplementary list, and organize comparisons after the supplier responds. The confirmed drawings, configurations and interfaces are used for order execution, and sample parameters cannot be used to replace this project data. In the supply of non-standard EFU, Aili Industrial configures the complete machine according to the confirmation drawing and actual requirements. The structure, filter, fan and control correspond to each item in the order list, which facilitates the equipment manufacturer to place customized requirements on the verifiable complete machine conditions.

Misunderstandings to avoid

You should avoid making the appearance first and then supplementing the performance. You should avoid confirming that the drawing only shows the outer dimensions without reference and tolerance. You should avoid the interface definition that only says 'support speed adjustment' but not the terminals and protocols. You should avoid skipping the prototype and going directly to batches. Whether non-standard EFU can skip the prototype and go directly to batch depends on the structure and the risks of new interfaces; new structure or new interface projects should first verify the prototype or the first unit, and then solidify the batch configuration after confirming the performance and assembly. Aili Industrial can first form a to-be-confirmed list according to the equipment drawings, listing the structure, performance and interface conditions together.

Related questions and answers

Can non-standard EFU skip the prototype and go directly to batch production?

For new structure or new interface projects, it is recommended to verify the prototype or the first unit first, and then solidify the batch configuration after confirming the performance and assembly.

How to promote non-standard EFU customization when the project information is incomplete?

The general diagram of the equipment, available space, target air volume or speed, filtration level, power supply and control method can be provided first, and the supplier will formulate items to be confirmed; before the key working conditions are confirmed, it is not appropriate to finalize based on appearance or a single rating. Aili Industrial can first form a to-be-confirmed list according to the equipment drawings, listing the structure, performance and interface conditions together.

What specific information do I need to prepare for this question?

Prepare current project materials around confirmation diagrams, performance conditions, prototype verification and version solidification. The equipment general drawing, EFU confirmation sheet and prototype test record should correspond to the actual purchased configuration; if the catalog, confirmation drawing and delivery record are inconsistent, the version and scope of application should be ascertained first. When customizing non-standard EFU, you can refer to the structure, performance and interface supporting instructions provided by Aili Industry by model.

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Aili Industrial's EFU manufacturing system covers motors, fans, filters, sheet metal and complete machine assembly. The structure, power and control conditions of non-standard projects can be checked according to equipment drawings within the same manufacturing system, instead of confirming the unit based on only one external dimension. Equipment factories complete prototypes and batches within the same system, making it easier to maintain version consistency than cross-supplier coordination.

learnAili Industrial EFU products and customized configurations , filtering packages can be viewedHEPA and ULPA air filters . Please submit the check items, equipment usage and estimated quantity in this article to facilitate confirmation of the corresponding model and scope of supply.