Aunov Tech supplies the Premium Stainless Steel Copper Nickel Capillary Tubes as a copper or stainless steel component manufactured entirely in house. In the assembly, the deep drawn tube guides or contains the mating part along its bore. Forming, machining and inspection share one floor, which keeps tolerances consistent from sample to volume on one production route.
Product overview
What defines this stainless steel tube is, draw depth, wall band and the surfaces that forming cannot hold, all held to the drawing and verified at first article.
Forming, machining and finishing for this stainless steel tube happen on one site, so a change of wall or hole does not restart the programme, and nothing about the route depends on a third party.
How it is manufactured
This is how the stainless steel tube is built: Drawing converts a flat blank into the finished envelope in one controlled sequence; threads are single-pointed or rolled and seats bored in one setup where possible.
Route cards follow each open-top sleeve batch through the shop, so the next run starts from the data that already worked. Any change to the open-top sleeve drawing is re-approved and re-verified before production continues.
Materials and finishing
Everything is drawn from a fixed stock list: SPCC / DC01 carbon steel, 304 / 316 stainless, aluminium, brass, copper and bronze and the grade agreed for this stainless steel tube is 304 / 316 stainless steel.
The finish is chosen for the duty it will see: plating, anodising, powder coating, electrophoresis and passivation. The finish on this stainless steel tube is locked to the drawing revision, so later orders match.
The open-top sleeve manufacturing record is archived together with the drawing revision that produced it. Process settings for the open-top sleeve are archived, so later runs can be compared with the one you approved.
Quality control
The plant is ISO 9001 certified: mill certificates cover every delivery of stock, the first article is CMM-measured against the print, and later batches follow the sampling plan agreed at approval. Wall thickness of the open-top sleeve is measured at first article. Functional testing – torque, leak or pressure – can be written into the plan, with certificates included in the shipment file.
Applications
The stainless steel tube is fitted into industrial equipment and general assembly work for OEM and Tier-1 customers.
Drawings for this stainless steel tube are adapted across programmes, so one approved version covers the whole range, and the die does not have to change.
Customization and options
Options changed most often
Typical decisions customers make on this stainless steel tube: grade and finish for the environment, wall thickness bands, flange and rim forms, threads, bosses and closed ends, with orders run as prototypes, pilot lots or scheduled call-offs.
The quotation for this stainless steel tube marks what the existing tooling can do, so you can see which options are free and which need new tooling. Tooling ownership for the open-top sleeve is stated on the quotation.
Specifications
| Item | Premium Stainless Steel Copper Nickel Capillary Tubes |
|---|---|
| Brand | AUNOV |
| Designing | Made to your 2D/3D drawings (PDF, DWG, STEP, IGS) – unusual walls, threads or tolerances are feasibility-checked first; the agreed version governs every later batch. |
| Tooling | Tooling is built to the drawing and held against your part number for the life of the part. |
| Samples | Pre-production samples come with a full inspection report, so the approved first article becomes the gauge reference, and production starts only after your written sign-off. |
| Materials | Materials held include carbon steel, 304 / 316 stainless, aluminium and brass; mill certificates and heat numbers accompany the first article. |
| Surface finish | Plating, coating or polishing to suit the drawing; alternatives quoted with the quotation, samples approved in writing. |
| Processing | Deep drawing followed by CNC finishing on critical faces; first articles verify the whole flow before the run is released. |
| Equipment | Hydraulic drawing presses and CNC lathes for sealing faces, backed by CNC turning centres and a climate-controlled inspection room. |
| Tolerance | +/-0.01 mm on sealing faces, +/-0.05 mm on drawn profiles; critical dimensions carry CMM data with the shipment. |
| Delivery terms | FOB, CIF or DDP per Incoterms 2020, T/T or L/C, with D/P accepted on repeat business; price breaks tie to annual volume. |
Packing and shipment
The packing method protects the surfaces of this stainless steel tube: interleaves, polybags or formed trays are selected according to the coating, then sealed cartons are palletised for export, with documents and marks to your instruction.
