Number of views: 5092 Author: Aili Industry Release time: 2028-02-26 Source: Ai Li Industrial
Common connection methods for FFU cabinets include laser welding, riveting and bolting. Purchasing often asks which one is better. There is no unified answer to this question because the three methods adapt to different usage conditions. The welded structure has good sealing and good overall rigidity, but it is inconvenient to disassemble and maintain; riveting and bolted connections are easy to disassemble, but the seam sealing and long-term stability need to be confirmed separately. What procurement needs to do is to first clarify the conditions of use and then choose the appropriate connection method, rather than generally assuming that a certain process is more advanced. Aili Industrial selects the connection method according to the usage conditions in FFU sheet metal processing, and writes the joints, sealing and maintenance requirements into the confirmation drawing. This is why many purchasers refer to the Aili Industrial structure description when comparing FFU connection processes.
Welded structures focus on seams, deformation and surface treatment, and mechanical connections focus on fastening, clearance and detachability. Do not evaluate the connection process apart from the box material and plate thickness.
seam items |
laser welding |
Riveting/bolting |
|---|---|---|
Sealing |
Seams are continuous and well sealed |
Depends on sealing material and compression |
surface state |
Treatment required after welding |
Seams are visible and need to be cleaned to confirm |
Difficulty of cleaning |
Dust easily accumulates at welds |
Gaps need to be cleanable |
gap control |
Small seams |
Clearance depends on assembly |
Ai Li industrialThe FFU product and customized configuration page lists the main components and optional configurations by model. When comparing the joint status, the purchaser can directly correspond to the model and structure description.
Structural items |
Contents to be confirmed |
|---|---|
Flatness |
Is the plane of the cabinet deformed after connection? |
overall stiffness |
Whether it meets the ceiling or equipment installation requirements |
Welding deformation |
Does thermal influence affect interface size? |
Assembly sequence |
Does the connection process affect subsequent assembly? |
Procurement of available samples confirms cleaning accessibility and sealing surface condition. Parts that need to be disassembled for maintenance should be clearly fixed and resealed.
Maintenance items |
Contents to be confirmed |
|---|---|
Disassembly method |
Which parts need to be disassembled and maintained? |
Reinstallation seal |
How to restore airtightness after disassembly |
Tool requirements |
Do you need special tools? |
Maintenance frequency |
Does it match the filter replacement cycle? |
Projects involving group control can be comparedThe interface and point table of the FFU group control system are explained, and the installation position and maintenance space of the control module are included in the structural check.
Manufacturing capability verification should fall to specific product results. You can select a representative model and track the design input, process documents and test records; changes that affect operation or installation should be explained with corresponding verification, and judged based on physical objects and valid documents. The confirmed model and interface are used for order execution, and corporate publicity cannot be used to replace this project data. Ai Li industrialThe FFU product and customized configuration page can provide configuration and matching instructions by model to facilitate procurement and correspond to specific specifications in connection method comparisons.
It should be avoided to think that one connection technology is suitable for all parts of the box. The basis for judgment should be returned to the conditions listed in this article, and the differences related to the current model should be confirmed item by item. Dimensions still need to be checked after welding, as the effects of processing heat and the assembly process may change the plane or interface.
If necessary, the effects of machining heat and the assembly process may change the plane or interface, which should be checked in the final structural state.
Prepare current project information around sealing and cleaning of joint conditions, planes and stiffness of structural changes, disassembly and restoration of maintenance requirements. The collaborative records of motors, fans, controls, sheet metal, and filters 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 clarified first. When comparing FFU connection processes, you can refer to the structural drawings and supporting instructions provided by Aili Industry by model.
Related articles
Check items |
Confirm key points |
|---|---|
seam condition |
Seal cleaning confirmed |
structural changes |
Plane stiffness needs to be rechecked |
Maintenance requirements |
Disassembly and recovery operation |
Process selection |
Compare by usage conditions |
Aili Industrial can evaluate FFU solutions from fans, motors, filters, sheet metal and self-developed control packages. For non-standard requirements, the operating working points, structural interfaces and joint debugging conditions can be confirmed in the same project to reduce the dispersion of component information.
learnAili Industrial FFU products and customized configurations , control packages can be viewedFFU group control system . Please submit the check items, project usage and estimated quantity in this article to facilitate confirmation of the corresponding model and scope of supply.