The Precision Rolled Capillary Tubes Precision Bright Steel Tubes for is produced by Aunov Tech from steel, formed and finished under one roof. In service, the deep drawn tube carries fluid or motion through a closed drawn wall. Forming and machining share equipment, staff and batch records, and a design change is re-sampled in one place under one roof.
Product overview
This carbon steel tube is defined by, wall thinning, concentricity and the finished mating faces, all held to the drawing and verified at first article.
Die work and machining for this carbon 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: The shell is drawn from a blank in successive stages, annealed where the wall thins; threads are single-pointed or rolled and seats bored in one setup where possible.
Each long closed cylinder shipment is verified against the master sample before it leaves the shop. First article, drawing revision and material cert travel with each long closed cylinder batch.
Materials and finishing
Everything is drawn from a fixed stock list: carbon steel SPCC / DC01, 304 and 316 stainless, aluminium, brass and copper with this carbon steel tube costed in cold-rolled carbon steel.
Coating and polishing are matched to the end use: polishing, zinc / nickel / chrome plating, anodising or powder coating. It is written into the drawing for this carbon steel tube, so it cannot drift between batches.
Every long closed cylinder 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 long closed cylinder batch.
Quality control and inspection
Production runs under an ISO 9001 certified quality system: incoming material is verified against mill certificates, a full CMM report approves the first article, and routine sampling keeps batches aligned with the first article. First article of the long closed cylinder carries wall thickness data. Where the application asks for it, torque, leak or pressure testing is added to the plan, and the inspection report ships with each batch.
Applications
This carbon steel tube normally works inside industrial equipment and general assembly work in both OEM and aftermarket supply.
Drawings for this carbon steel tube are adapted across programmes, so the specification is set by the toughest of them, without a second tooling round.
Options and variations
Frequently varied options
Material – carbon steel, stainless, aluminum or brass; finish – plating, anodizing or coating matched to the working environment; features – closed or open ends, wall bands, inside finish ranges, flanges and port features added by secondary ops; lot size – prototypes for validation, then scheduled batches against a call-off.
Tooling impact is stated line by line for each change, keeping the trade-offs visible from the start.
Specifications
| Item | Precision Rolled Capillary Tubes Precision Bright Steel Tubes for |
|---|---|
| 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 | The tooling record travels with the part number, so maintenance history is never lost. |
| Samples | Samples are issued for approval before the run, so the sample is retained as the master, and later batches are gauged back to the signed sample. |
| Materials | SPCC / DC01 cold-rolled carbon steel, 0.5-3.0 mm, the standard stock for formed tube; pickled (SPHC) or galvanised alternatives. |
| Surface finish | Surface treatment matched to the duty: plating, coating or polishing; the finish is inspected with the dimensional report on the first article. |
| Processing | Deep drawing followed by CNC finishing on critical faces; first articles verify the whole flow before the run is released. |
| Equipment | Deep drawing presses plus CNC turning centres for machined faces, backed by CNC turning centres and a climate-controlled inspection room. |
| Tolerance | +/-0.02 mm on machined seats, sealing faces flat to drawing; finer bands confirmed from capability data before quoting. |
| Delivery terms | CIF or DDP, with FOB available, payment by T/T, L/C at sight or D/P; call-off schedules are supported. |
Packaging and delivery
Packing for this carbon steel tube is chosen around the coating: interleaves, bags or trays are matched to the surface treatment, in sealed cartons on export pallets, documented and marked to your instruction.
