Two production bases in Zhejiang, in-house tooling, 38 injection machines and a test laboratory. We sell to distributors, importers and OEM manufacturers in 42 countries — and we would rather answer a technical question than send another catalogue.
Vertical integration is why we can hold MOQ at 500 pcs instead of a full container per SKU.
In-house mould and die shop
New caster designs from drawing to sample in 25–35 days.
38 injection moulding machines
PU, TPR, PP, PA6 and rubber compounds in one plant.
22 press lines, 6–250 t
Brackets from 2.5 mm to 6 mm steel, zinc and SS304.
4 semi-automatic lines
Riveting, bearing press-fit and brake adjustment with torque control.
4 in-house test rigs
Life cycle, load, salt spray and impact — data stored per batch.
IQC / IPQC / OQC
Incoming compound checks through to pre-shipment inspection reports.
Documents we can issue with a shipment — or before you place the order.
| Stage | Check |
|---|---|
| IQC | Compound batch, steel thickness, plating thickness |
| IPQC | Bearing press-fit force, brake function, swivel torque |
| Life test | Rated-load rolling cycles per series |
| OQC | Overall height, plate and hole dimensions, appearance |
| Pre-shipment | Carton drop, packing list, loading photos |
We stayed in casters. That focus is why the drawings, the test data and the spare-part supply hold up over a ten-year equipment programme.
We host distributor visits in Ningbo year-round — plant tour, test lab and a product review with the engineering team.