OpeningYou send the drawing. We machine the collet. Every unit is verified before shipment.This is the full series of auto lathe collets, from 25 mm to 700 mm in gripping diameter. We build them to yo
You send the drawing. We machine the collet. Every unit is verified before shipment.
This is the full series of auto lathe collets, from 25 mm to 700 mm in gripping diameter. We build them to your exact print, not from a catalog. If you need a custom CNC collet chuck for a specific spindle, taper, or material, this is the line to spec.
| Parameter | Value |
|---|---|
| Gripping range | 25 mm – 700 mm |
| Material options | 20CrMnTi, 8620, 4140, 65Mn |
| Hardness | 58–62 HRC (case-hardened) |
| Tolerance (ID/OD) | ±0.005 mm |
| Concentricity | ≤0.01 mm TIR |
| Surface finish | Ra 0.4 µm on gripping surfaces |
| Slots | Wire-cut EDM, no burr |
| Heat treatment | Carburized, quenched, tempered |
| Inspection | CMM report per batch, material certs included |
| Batch size | 1 – 10,000 pcs |
| Lead time | 15 days for prototypes, 20 days for production |
| Country of origin | Made in China, Dongguan factory |
We run these on Citizen, Star, and Tsugami auto lathes for the smaller range, and on CNC turning centers for the 300–700 mm sizes. Slots are cut after heat treatment to hold geometry. We do not grind after slotting unless your print calls for it.
1. Batch-traceable quality. Every heat lot gets a unique code. We record material cert, heat treatment curve, and final inspection data against that code. If you have a failure in the field, we can trace it back to the exact batch in minutes. No guesswork.
2. Inspection report per batch. You get a CMM report with every shipment. Critical dimensions are measured on a Zeiss CMM, not a caliper. We also include a hardness test report and a surface roughness reading. If you need PPAP Level 3, we do that too.
3. One factory for CNC + stamping + spring + heatsink. Your collet chuck is not the only part you buy. We run a 20-year-old factory with CNC machining, metal stamping, springs, and heatsink lines under one roof. Send us the whole assembly. We coordinate the processes, reduce your supplier count, and cut your logistics cost. One purchase order, one quality standard.
Custom CNC collet chucks from this series go into high-volume precision turning operations. Typical applications:
If your part spins in a lathe, this collet holds it.
Looking for a different part? We also machine Custom CNC Machined Auto Lathe 36 Type External Thread Extended Collet in the same Dongguan factory.
Q: What is the minimum order quantity? A: No MOQ. We machine one prototype for you to test, then scale to your production volume. Many buyers start with a single piece to verify fit and runout.
Q: How do you guarantee tolerance and concentricity? A: We cut slots after heat treatment to avoid distortion. Then we measure every unit on a CMM. Concentricity is held to 0.01 mm TIR. If it does not meet your print, we do not ship it.
Q: What is the lead time for a custom collet? A: 15 days for a prototype, 20 days for production batches. If you need it faster, tell us. We have a fast-track line for emergency replacements.
Q: Do you provide material certificates? A: Yes. Every batch ships with a mill certificate for the raw material, a heat treatment report, and our inspection data. Third-party certification is available on request.
Stop adapting a standard collet to your spindle. Send us your print and get a firm quote in 12 hours.
We reply with a price, a lead time, and a technical review of your drawing. If we see a potential issue with your design, we tell you before you pay.
Email: sc@bquq.com WhatsApp: +86 13713157787
Precision manufacturing, made in China, no MOQ. Your drawing, our machines, verified results.
| 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 |
