Aunov Tech builds this Stainless Steel Compression Tube Fittings in stainless steel, from coil or bar through to the finished surfaces. In the assembly, the CNC machined part delivers the precise turned or milled geometry the assembly mounts to. Die work, machining and CMM inspection are all in-house, keeping first-article quality through scheduled runs without handing the part to another vendor.
Product overview
What defines this stainless steel fitting is, wall thickness control, flange geometry and the sealing surface, each measured at first article and gauged on production batches.
The whole route from die to finished stainless steel fitting stays in house, which keeps revision loops short and samples fast, and the same die can be re-cut from the original data.
How it is manufactured
Production follows a defined route: The drawn envelope is produced in stages with anneals between them; flanges and rims are formed in the same line, then trimmed to length.
Production batches of the flange plate are gauged back to the signed first article, not to a memory of it. That record is what every flange plate reorder is built on, so nothing changes silently between shipments.
Materials and finishing
Working stock covers carbon steel SPCC / DC01, 304 and 316 stainless, aluminium, brass and copper and this stainless steel fitting is costed in 304 / 316 stainless steel.
The finish is chosen for the duty it will see: polishing, plating in zinc, nickel or chrome, anodising, powder coating, electrophoresis and passivation. The finish on this stainless steel fitting is locked to the drawing revision, so later orders match.
Each shipment is verified against the master sample, so material and finish stay consistent between shipments.
Quality control and inspection
The plant is ISO 9001 certified: stock arrivals are checked against mill certificates, the CMM measures the first article dimension by dimension, and later batches follow the sampling plan agreed at approval. First articles of the flange plate are CMM measured, with threads gauged to class and diameters recorded. If the assembly calls for torque, leak or pressure proof, the test is built into the quality plan, and results travel with the batch paperwork.
Where the part is used
This stainless steel fitting is used in industrial machinery and equipment assemblies in volume programmes as well as aftermarket supply.
Drawings for this stainless steel fitting are adapted across programmes, so the finish is chosen to cover the harshest of them, and no re-tooling is needed.
Customization and options
What customers usually vary
What customers usually vary on this stainless steel fitting: material and coating for the duty, wall bands, flange forms, threads and bosses, closed ends and finishes matched to the working environment, with orders run as prototypes, pilot lots or scheduled call-offs.
The quotation for this stainless steel fitting is explicit about what the die already covers, so the effect of a revision on price is clear up front. The flange plate only changes against a written revision.
Specifications
| Item | Stainless Steel Compression Tube Fittings |
|---|---|
| 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 tooling lead time stays under our control, and ownership is confirmed on the quotation. |
| Samples | Sample parts are measured and reported before submission, so the approved first article becomes the gauge reference, and the signed sample is kept for future reorders. |
| Materials | Stock covers carbon steel (SPCC / DC01), 304 / 316 stainless, aluminium and brass; special grades are sourced to the drawing when volumes justify. |
| Surface finish | Plating, coating or polishing to suit the drawing; finish thickness and adhesion checked on the first article. |
| Processing | Turn-mill machining, critical diameters finished in one setup; batch records are filed so a repeat order starts from approved data. |
| Equipment | 12 CNC turning centres with automatic bar feeders, with CNC turning centres for secondary operations and CMM inspection. |
| Tolerance | +/-0.01 mm on ground diameters, with GD&T taken from your print; critical dimensions carry CMM data with the shipment. |
| Delivery terms | FOB Ningbo or Shanghai, payment by T/T or L/C, quoted in USD or EUR; price breaks tie to annual volume. |
Packaging and delivery
Packaging protects the finished surfaces of this stainless steel fitting: interleaving, individual bags or trays are chosen by finish type, in sealed export cartons, palletised and marked as you direct.
