Wheel Cylinder for Geely Coolray: Natural Rubber
This wheel cylinder for the Geely Coolray is specified around natural rubber, 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 a fitment that looked right on paper and failed on the bench, or a fitment that looked right on paper and failed on the bench. Both are specification problems, and both are preventable.

Specification
| Product | Wheel Cylinder |
|---|---|
| Vehicle application | Geely Coolray |
| Material / finish | Natural Rubber |
| Typical use | Roadside Assistance |
| MOQ | 200 pieces per specification |
| Sampling | 14 working days, 3 days per revision |
| Bulk lead time | 25-30 days after approval |
| Compliance | E-mark |
| Packing | 10 pieces per inner box, 200 per carton |
Material options
- Kevlar Composite — specified where the part sits close to a heat source
- Neoprene — chosen where wear resistance comes first
- Reinforced Nylon — used when the finish has to hold a coating
- Natural Rubber — specified where the part sits close to a heat source
- Magnesium Alloy — specified where the part sits close to a heat source

Processes available
- cold forging
- sintering
- ultrasonic cleaning
- surface grinding
- gravity casting
- CNC machining
Fitment notes
Keep the old part until the new one is on the bench. Comparing them side by side settles questions a photograph never will.
Where it is used
The specification above is the one most often ordered for roadside assistance. Related applications include weekend riding, security patrols, rental fleets, farm use, off-road trails.
Quality and packing
- In-line inspection with AQL 1.5 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
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.
What happens if a lot fails inspection?
The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.
What testing is included?
Standard lots ship with dimensional and hardness reports. E-mark documentation is issued with the shipment when your market requires it.
How long does sampling take?
Samples leave the factory in 14 working days, and each revision round adds about 3 days once you have seen the first piece.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.







