Aunov Tech manufactures the Power window regulator motor shell in stainless steel on a single production floor. In operation, the window lift motor housing locates the gear train while shielding the windings from dust. Forming, machining and inspection share one floor, so the approved sample defines every later batch on one production route.
Product overview
The drawing for this metal shell fixes, wall thinning, concentricity and the finished mating faces, audited against the approved sample at each production release.
Toolroom, presses and machining centres used on this metal shell operate on the same site, so a change of wall or hole does not restart the programme, with process data archived for repeat orders.
How it is manufactured
The process for this metal shell runs in a fixed sequence: Drawing converts a flat blank into the finished envelope in one controlled sequence; the part is annealed between stages so the wall thins evenly.
Process settings are archived with the part number, and that record is what every reorder is built from.
Materials and finishing
Base materials in stock: carbon steel SPCC / DC01, 304 and 316 stainless, aluminium, brass and copper and this metal shell runs in carbon steel or stainless.
Finish selection follows the working environment: polishing, plating in zinc, nickel or chrome, anodising, powder coating, electrophoresis and passivation. The agreed finish for this metal shell travels with the part number on every reorder.
Later runs are measured back to the first article, and grade changes have to be agreed in writing first.
Quality control
The plant is ISO 9001 certified: material traceability starts with mill certificates, the first article is CMM-measured against the print, and routine sampling keeps batches aligned with the first article. On the window lift motor housing itself, gear-bore alignment is checked at first article on a CMM, and noise-critical seats are gauged each run. Tests for torque, leakage or pressure can be arranged when the service demands them, and the inspection report ships with each batch.
Applications
This metal shell is used in industrial and appliance assemblies under schedules that run for years at a time.
A single design of this metal shell is often reused across a product family, so one tooling set serves every position, and the same first article applies throughout.
Specifications
| Item | Power window regulator motor shell |
|---|---|
| Brand | AUNOV |
| Designing | Quotation follows the print, not a catalogue – DFM notes are returned before any tooling is cut; changes are priced before they are made. |
| Tooling | Our toolroom covers die design, wire-cut EDM and maintenance, so die cost stays transparent, and first-article timing is measured from the tooling start date. |
| Samples | First-article samples ship with a dimensional report and material certificate, so the approved first article becomes the gauge reference, and the signed sample is kept for future reorders. |
| Materials | Carbon steel (SPCC / DC01), 304 / 316 stainless, aluminium, brass and copper – the grade is matched to the duty of this shell. |
| Surface finish | Phosphating for coating adhesion, then powder coating, e-coating or zinc plating; chrome and nickel for visible faces. |
| Processing | Blanking, multi-stage deep drawing with interstage annealing, trimming and piercing, coining, then finishing. |
| Equipment | 5-250 T mechanical presses and 250-500 T hydraulic presses, in-line annealing furnace, CNC turning for secondary work. |
| Tolerance | +/-0.01 mm to +/-0.03 mm on controlled dimensions, with CMM reports and capability data for critical features. |
| Delivery terms | FOB, CIF or DDP per Incoterms 2020, T/T or L/C, with D/P accepted on repeat business; call-off schedules are supported. |
