This Stainless Steel Capillary Tube is an Aunov Tech production part in stainless steel, quoted and built to customer print. On the product, the deep drawn tube provides a sealed cylindrical body the assembly builds into. The same floor forms, machines and inspects the part, which keeps tolerances consistent from sample to volume on one production route.
Product overview
What matters most on this stainless steel tube is, draw depth, wall band and the surfaces that forming cannot hold, re-checked whenever the drawing is revised.
Die work and machining for this stainless steel tube sit on the same floor, which keeps revision loops short and samples fast, and the approved sample is kept as the master.
How it is manufactured
Manufacturing runs on a controlled process path: Drawing converts a flat blank into the finished envelope in one controlled sequence; the finishing operations hold the concentricity the drawing calls for.
Every stepped closed tubes, order keeps its trace back to the approved first article, and a reorder is a repeat rather than a new start. First article, drawing revision and material cert travel with each stepped closed tubes, batch.
Materials and finishing
Our stock list runs to SPCC / DC01 carbon steel, 304 / 316 stainless, aluminium, brass, copper and bronze with 304 / 316 stainless steel specified on the drawing for this stainless steel tube.
The surface treatment is picked to match the service conditions: polishing, zinc / nickel / chrome plating, anodising or powder coating. It is written into the drawing for this stainless steel tube, so it cannot drift between batches.
Every stepped closed tubes, order keeps its trace back to the approved first article, and a reorder is a repeat rather than a new start. First article, drawing revision and material cert travel with each stepped closed tubes, batch.
Quality control and inspection
Production runs under an ISO 9001 certified quality system: material traceability starts with mill certificates, first-article geometry is confirmed on the CMM, and routine sampling keeps batches aligned with the first article. First article of the stepped closed tubes, carries wall thickness data. Torque, leak and pressure tests are available where the assembly needs them, with certificates included in the shipment file.
Typical applications
The stainless steel tube is fitted into industrial equipment and general assembly work for OEM and Tier-1 customers.
The same stainless steel tube is used across several platforms, so the tightest tolerance in the family sets the spec, and the die does not have to change.
Options and variations
Frequently varied options
Design freedom covers material (carbon steel, stainless, aluminum, brass), the finish for the environment, closed or open ends, wall bands, inside finish ranges, flanges and port features added by secondary ops, and lot sizing from prototypes to call-off.
Changes are quoted with their tooling impact stated explicitly, keeping the trade-offs visible from the start.
Specifications
| Item | Stainless Steel Capillary Tube |
|---|---|
| Brand | AUNOV |
| Designing | Quotation follows the print, not a catalogue – DFM notes are returned before any tooling is cut; revisions are re-quoted once rather than silently absorbed. |
| Tooling | Tooling is built and held under your part number, so no tooling step is outsourced, and first-article timing is measured from the tooling start date. |
| Samples | Pre-production samples come with a full inspection report, so any deviation is corrected at sample stage, and later batches are gauged back to the signed sample. |
| Materials | Standard stock: carbon steel (SPCC / DC01), 304 / 316 stainless, aluminium, brass; special grades are sourced to the drawing when volumes justify. |
| Surface finish | Natural, plated or coated – the print decides, and the agreed finish is logged; masking and laser marking available where needed. |
| Processing | Tube drawing with precision turning on critical diameters; first articles verify the whole flow before the run is released. |
| Equipment | Drawing benches, annealing furnaces and CNC turning for tube ends, backed by CNC turning centres and a climate-controlled inspection room. |
| Tolerance | +/-0.03 mm on machined ends, straightness per print; critical dimensions carry CMM data with the shipment. |
| Delivery terms | FOB, CIF or DDP per Incoterms 2020, payment by T/T or L/C, quoted in USD or EUR; sea or air freight is quoted to your door. |
Packaging and delivery
For this stainless steel tube, protection starts at the surface: interleaves, bags or trays are matched to the surface treatment, in sealed cartons on export pallets, documented and marked to your instruction.
