OpeningYour drawing defines the part. We make it exactly to that geometry. Every collet chuck is machined from solid stock, heat-treated, and ground on the locating diameters. Before shipment, each un
Your drawing defines the part. We make it exactly to that geometry. Every collet chuck is machined from solid stock, heat-treated, and ground on the locating diameters. Before shipment, each unit is checked on a CMM and a go/no-go gauge. If it does not match your print, it does not ship.
This is a small-series set covering 15 mm, 18 mm, 20 mm, and 22 mm collet sizes. It fits standard auto lathe spindles and CNC collet chucks. You get the same precision as a single-piece order, but with the convenience of a matched set.
| Parameter | Value |
|---|---|
| Material options | 20CrMnTi, 40Cr, 9SiCr, or per your spec |
| Hardness | 58–62 HRC after carburizing or quenching |
| Surface finish | Ra 0.4 µm on taper, Ra 0.8 µm on OD |
| Concentricity | ≤0.005 mm TIR at nose |
| Taper angle | 16° or 20° per DIN 6343 / custom |
| Machining process | CNC turning, internal grinding, wire EDM for slots |
| Heat treatment | Carburizing + quenching + tempering, or induction hardening |
| Batch size | 1–500 pieces, no minimum |
| Inspection | 100% dimensional check, CMM report per batch |
| Marking | Laser etched size, batch number, material grade |
We run these on our own CNC lathes and grinding machines. No outsourcing. That keeps the tolerance stack under our control. For custom CNC collet chuck requirements, we adjust the bore, slot width, or thread to match your spindle.
1. Batch-traceable quality. Every batch gets a unique number. We record heat treatment curves, grinding wheel specs, and final gauge readings. If a problem appears in your line, we trace it back to the exact shift and machine. No guesswork.
2. Inspection report per batch. You do not have to ask for it. Each shipment includes a dimensional report with actual measured values—not just a pass/fail. We list bore diameter, taper angle, hardness, and concentricity. Your incoming QC can verify in minutes.
3. One factory for CNC + stamping + springs + heat sinks. We are not a trading company. Under one roof in Dongguan, we run CNC machining, metal stamping, spring coiling, and heat sink fabrication. If your collet chuck goes into an assembly that also needs a stamped cover, a spring, or an aluminum heat sink, you send one drawing package and get one quote. Fewer suppliers, fewer delays, one responsible party.
This collet set is common in Swiss-type lathes and small CNC turning centers. Typical applications:
In each case, the collet chuck grips the workpiece on the OD while the tool cuts the ID or face. A stable, repeatable grip is the difference between a good part and a scrap part. Our collets hold that grip across thousands of cycles.
Looking for a different part? We also machine Custom CNC Collet Chuck 25 Type Hex Bore Spring Collet | BQUQ in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We make one piece if that is what you need. For a set of 15, 18, 20, 22, you can order just the 20 mm size or the full set. Pricing reflects setup cost, not quantity.
Q: How do you guarantee tolerance and quality? A: We grind the taper and bore after heat treatment. That removes distortion. Then we measure every unit on a CMM. The inspection report is included. If you need third-party verification, we can arrange SGS or TUV at cost.
Q: What is your lead time? A: Standard sizes ship in 7–12 working days. Custom bores or special tapers add 3–5 days for tooling. For urgent orders, we can split the batch and ship the first piece in 48 hours.
Q: Do you provide material certificates? A: Yes. Each batch comes with a mill certificate for the raw material, heat treatment report, and hardness test results. All documents are in English and PDF format.
We quote firm prices in 12 hours. Send your PDF or STEP file. We check the bore, taper, and material spec, then reply with unit price, lead time, and a recommended batch size. No obligation.
Email: sc@bquq.com WhatsApp: +86 13713157787
Precision manufacturing is our daily work. Custom CNC collet chuck, made in China, with no MOQ—that is what we do. Send the drawing and see the difference.
| Parameter | Capability |
|---|---|
| Materials | AL6061/7075, SUS303/304/316, 45# steel, T2 copper, H59 brass, POM, PEEK, nylon |
| Tolerance | ±0.005mm standard, ±0.003mm on request |
| Machines | 3/4/5-axis CNC, turn-mill, Swiss lathe |
| Surface | Anodizing, nickel, zinc, passivation, sandblast, polish |
| Size Range | Max 400 x 300 x 200 mm |
| Prototype | 72 hours, no MOQ on samples |
| Inspection | Full report per batch, CMM data on request |
