Aunov Tech supplies the Stainless steel deep drawn square cover as a stainless steel component manufactured entirely in house. Once installed, the drawn housing encloses the sensitive internals and carries the mounting interface. Drawing, cutting and measurement sit on one floor, keeping first-article quality through scheduled runs without handing the part to another vendor.
Product overview
The critical features of this stainless steel cover are, draw depth, wall band and the surfaces that forming cannot hold, checked by CMM at first article and by gauge in production.
Tooling and finishing for this stainless steel cover run under one roof, so the route from print to sample stays short, and nothing about the route depends on a third party.
How it is manufactured
This is how the stainless steel cover is built: The shell starts as coil or blank and is drawn through single and progressive dies; the part is annealed between stages so the wall thins evenly.
The square cover tooling and setup record is stored against the part number, so nothing depends on someone remembering. First article, drawing revision and material cert travel with each square cover batch.
Materials and finishing
Everything is drawn from a fixed stock list: cold-rolled steel (SPCC / DC01), 304 / 316 stainless, aluminium, brass, copper and bronze with 304 / 316 stainless steel specified on the drawing for this stainless steel cover.
The surface treatment is picked to match the service conditions: polishing, zinc / nickel / chrome plating, anodising or powder coating. The agreed finish for this stainless steel cover travels with the part number on every reorder.
The square cover tooling and setup record is stored against the part number, so nothing depends on someone remembering. First article, drawing revision and material cert travel with each square cover batch.
Quality control
The factory operates with ISO 9001 certification: incoming material is verified against mill certificates, first articles are measured on a CMM, and run inspections follow an agreed sampling plan. Cavity depth and seal face finish on the square cover are verified at first article. Where the application asks for it, torque, leak or pressure testing is added to the plan, and the report is packed with the shipment.
Applications
The stainless steel cover is fitted into industrial and appliance assemblies for OEM and Tier-1 customers.
One part number for this stainless steel cover frequently serves several assemblies, so one tooling set serves every position, and approvals carry across programmes.
Customization and options
Common variation points across this square cover family
Variations that come up most often on this stainless steel cover: wall thickness bands, flange geometry, thread call-outs and the surface finish, and whether the first order is a prototype, a pilot lot or a production release.
Tooled and untooled options for this stainless steel cover are listed separately, so the boundary between free and chargeable changes is explicit. The quotation for the square cover states both quantities and price breaks.
Specifications
| Item | Stainless steel deep drawn square cover |
|---|---|
| Brand | AUNOV |
| Designing | Send drawings, or send a sample to be measured – a manufacturability review comes back with the quotation; the approved drawing is kept as the controlled master. |
| Tooling | Progressive and drawing dies are designed and built in house, so no tooling step is outsourced, and maintenance is tracked against the part number. |
| Samples | Prototype and pre-production samples are provided against the drawing, so any deviation is corrected at sample stage, and later batches are gauged back to the signed sample. |
| Materials | Stainless 304 and 316L, pickled and annealed, 0.5-3.0 mm nominal wall – one grade chosen for corrosion duty and formability of this cover. |
| Surface finish | Zinc, nickel or chrome plating, anodising, passivation or e-coat; masking and laser marking available where needed. |
| Processing | Progressive drawing through several stages, annealed between draws, then trim and pierce; every stage is logged against your part number. |
| Equipment | Mechanical presses 5-250 T plus 250-500 T hydraulics, with in-line annealing; secondary ops run on CNC turning centres, inspection on the CMM. |
| Tolerance | +/-0.05 mm on drawn diameters, tighter bands confirmed against the drawing; finer bands confirmed from capability data before quoting. |
| Delivery terms | FOB Ningbo or Shanghai, T/T or L/C, with D/P accepted on repeat business; each volume tier carries its own quoted price. |
Packing and shipment
The packing method protects the surfaces of this stainless steel cover: the coating decides whether parts are interleaved, bagged or tray-packed, in sealed cartons on export pallets, with documents issued to your instructions.
