Air Box for BMW X5: Sintered Metal
This air box for the BMW X5 is specified around sintered metal, which decides how it behaves in service far more than the part name does. We build to a written specification — base material, dimensions, finish and packing — and hold that specification on file so every reorder reproduces the approved piece.
The usual reason a programme changes supplier is not unit price. It is lead time that slipped twice before bulk started, or reorders that did not match the approved sample. Both are specification problems, and both are preventable.

Specification
| Product | Air Box |
|---|---|
| Vehicle application | BMW X5 |
| Material / finish | Sintered Metal |
| Typical use | Rural Transport |
| MOQ | 1,000 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 15-55 days after approval |
| Compliance | REACH |
| Packing | 20 pieces per inner box, 200 per carton |
Material options
- Stainless Steel — used when the finish has to hold a coating
- Chromed Steel — preferred when weight matters more than rigidity
- Carbon Steel — the cost-effective default for volume programmes
- PVC Coated Fabric — chosen where wear resistance comes first
- Sintered Metal — used when the finish has to hold a coating

Processes available
- surface grinding
- CNC machining
- injection moulding
- shot blasting
- heat treatment
- gravity casting
Fitment notes
Check whether the mounting points on your market version match the catalogue drawing — regional variants are the usual cause of a wrong first order.
Where it is used
The specification above is the one most often ordered for rural transport. Related applications include weekend riding, coastal delivery, mountain roads, airport ground fleets, off-road trails.
Quality and packing
- In-line inspection with AQL 4.0 sampling on every lot.
- Dimensional report issued against the approved drawing.
- Carton marking and barcode to your specification.
- Golden sample retained at the factory as the reorder reference.
Questions buyers ask
What testing is included?
Standard lots ship with dimensional and hardness reports. REACH documentation is issued with the shipment when your market requires it.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 1000 pieces per line.
How long does sampling take?
Samples leave the factory in 10 working days, and each revision round adds about 3 days once you have seen the first piece.
How is packing specified?
Individual packing, inner box quantity and carton marking are confirmed at quotation stage so the cartons arrive ready for your warehouse.
Ask for the current catalogue and the specification sheet for this line.







