Produced in stainless steel by Aunov Tech, the Custom metal tube stainless steel ntc thermistor probes is formed and machined on the same floor. On the product, the deep drawn tube guides or contains the mating part along its bore. Drawing, cutting and measurement sit on one floor, so first-article dimensions hold through volume batches under one roof.
Product overview
What defines this stainless steel probe is, material grade, wall uniformity and thread position, each measured at first article and gauged on production batches.
Die work and machining for this stainless steel probe sit on the same floor, which keeps the sample loop inside our own schedule, and the approved sample is kept as the master.
How it is manufactured
Production follows a defined route: Coil is blanked and then drawn down in successive stages; the part is annealed between stages so the wall thins evenly.
Production batches of the open tubes, mixed are gauged back to the signed first article, not to a memory of it. Any change to the open tubes, mixed drawing is re-approved and re-verified before production continues.
Materials and surface finish
Materials kept on the floor cover SPCC / DC01 carbon steel, 304 / 316 stainless, aluminium, brass, copper and bronze and the grade agreed for this stainless steel probe is 304 / 316 stainless steel.
The finish is chosen for a clean working surface: polishing, plating in zinc, nickel or chrome, anodising, powder coating, electrophoresis and passivation. It is fixed on the drawing for this stainless steel probe, so repeat orders never reopen the question.
Every open tubes, mixed order keeps its trace back to the approved first article, and a reorder is a repeat rather than a new start. Mill certificates are filed per heat, so open tubes, mixed traceability survives a change of material batch.
Quality control
Production runs under an ISO 9001 certified quality system: 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. Wall thickness on the open tubes, mixed is checked at first article, not assumed. 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.
Applications
This stainless steel probe is used in temperature sensing and control assemblies in volume programmes as well as aftermarket supply.
A single design of this stainless steel probe is often reused across a product family, so a single grade and coating can cover each application, and cost per piece stays at the volume tier.
Options and variations
Frequently varied options in this open tubes, mixed family
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, so decisions are easy to make.
Specifications
| Item | Custom metal tube stainless steel ntc thermistor probes |
|---|---|
| Brand | AUNOV |
| Designing | Quotation follows the print, not a catalogue – unusual walls, threads or tolerances are feasibility-checked first; revisions are re-quoted once rather than silently absorbed. |
| Tooling | Die design and toolmaking stay in house, so a die can be re-cut against the approved drawing, and the charge is refundable against agreed volumes. |
| Samples | Prototype and pre-production samples are provided against the drawing, so the approved first article becomes the gauge reference, and the signed sample is kept for future reorders. |
| 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 probe. |
| Surface finish | Surface treatment matched to the duty: plating, coating or polishing; masking and laser marking available where needed. |
| Processing | Tube drawing, straightening and turning in one flow; every stage is logged against your part number. |
| Equipment | Tube drawing benches with in-line annealing furnaces; first articles and batch samples are checked on the CMM. |
| Tolerance | +/-0.03 mm on machined features, +/-0.1 mm on formed ones; critical dimensions carry CMM data with the shipment. |
| Delivery terms | FOB Ningbo or Shanghai, T/T or L/C, with D/P accepted on repeat business; repeat orders reuse the approved first article. |
Packing and shipment
This stainless steel probe is packed to protect the finish: each coating gets its own packing – interleaves, bags or trays, in sealed cartons on export pallets, documented and marked to your instruction.
