Aunov Tech supplies the Sheet metal deep drawing stepper motor housing as a stainless steel component manufactured entirely in house. Once installed, the drawn housing provides a closed, seam-free body the customer builds into. The same floor forms, machines and inspects the part, so first-article dimensions hold through volume batches without a second supplier involved.
Product overview
For this metal housing, the drawing centres on, wall thinning, concentricity and the finished mating faces, audited against the approved sample at each production release.
Die building, pressing and machining for this metal housing are all in house, so revisions do not wait on outside suppliers, and the approved sample is kept as the master.
How it is manufactured
Production of this metal housing is locked to one route: Drawing converts a flat blank into the finished envelope in one controlled sequence; wall thickness is checked at the thinnest section after forming.
Route cards follow every order through the shop, so a repeat order starts from the same approved data.
Materials and surface finish
Our stock list runs to cold-rolled steel (SPCC / DC01), 304 / 316 stainless, aluminium, brass, copper and bronze and this metal housing runs in carbon steel or stainless.
Finish selection follows the working environment: plating, anodising, powder coating, electrophoresis and passivation. The finish on this metal housing is locked to the drawing revision, so later orders match.
Every batch is checked against the approved sample, and grade changes have to be agreed in writing first.
Quality control
Production runs under an ISO 9001 certified quality system: material traceability starts with mill certificates, the first article is CMM-measured against the print, and every production run is inspected against the first-article report. On the drawn housing itself, cavity depth and seal-face finish are measured at first article, and leak testing is available for sealed duty. Tests for torque, leakage or pressure can be arranged when the service demands them, and the batch file carries the results.
Applications
You will find this metal housing inside industrial equipment and general assembly work in volume programmes as well as aftermarket supply.
A single design of this metal housing is often reused across a product family, so a single grade and coating can cover each application, and the die does not have to change.
Specifications
| Item | Sheet metal deep drawing stepper motor housing |
|---|---|
| Brand | AUNOV |
| Designing | Quotation follows the print, not a catalogue – samples are reverse-measured into a controlled drawing; changes are priced before they are made. |
| Tooling | Progressive and drawing dies are designed and built in house, so the die charge appears as its own quotation line, and maintenance is tracked against the part number. |
| Samples | Sample parts are measured and reported before submission, so the part is proven before it is made in volume, and the signed sample is kept for future reorders. |
| Materials | Stock covers carbon steel, 304 / 316 stainless, aluminium and brass; the final grade is fixed with the drawing review. |
| Surface finish | Phosphating for coating adhesion, then powder coating, e-coating or zinc plating; chrome and nickel for visible faces. |
| Processing | Coil blanking, progressive drawing through 3-5 stages with anneals between, trim and pierce, then deburr and finish. |
| Equipment | 5-250 T mechanical presses and 250-500 T hydraulic presses, in-line annealing furnace, CNC turning for secondary work. |
| Tolerance | +/-0.1 mm on formed features and +/-0.2 mm on overall lengths; tighter bands confirmed against the die before quoting. |
| Delivery terms | FOB, with DDP offered for EU and US addresses, payment by T/T or L/C, quoted in USD or EUR; each volume tier carries its own quoted price. |
