OpeningYour drawing is the starting point. We machine your custom CNC collet chuck to that drawing, verify every critical dimension before shipment, and deliver a part that fits your spindle and holds
Your drawing is the starting point. We machine your custom CNC collet chuck to that drawing, verify every critical dimension before shipment, and deliver a part that fits your spindle and holds your workpiece true.
At a glance: Tolerance ±0.005 mm on bore and taper, surface finish Ra 0.4, lead time 15 working days, no MOQ.
We are BQUQ, a precision manufacturing factory in Dongguan, China. Twenty years of CNC machining, metal stamping, springs, and heat sinks. One factory, four lines, full control.
| Parameter | Value |
|---|---|
| Materials | 20CrMnTi, 40Cr, 65Mn, 9SiCr, 4140, 4340, stainless steel (303/304/316), aluminum 6061/7075 |
| Heat treatment | Carburized and hardened to HRC 58–62 (case depth 0.8–1.2 mm), or induction hardened |
| Grinding | Cylindrical and internal grinding after hardening |
| Bore tolerance | H6 or tighter, verified with air gauge |
| Taper tolerance | AT3 or better, checked with taper ring gauge |
| Concentricity | ≤ 0.005 mm TIR between bore and taper |
| Surface finish | Ra 0.4 on sealing and locating faces, Ra 0.8 elsewhere |
| Threads | Class 2A/2B or custom, thread gauged |
| Balancing | G2.5 or better, dynamic balancing available |
| Batch size | 1 piece to 10,000 pieces, no MOQ |
| Inspection | 100% critical dimensions, CMM report per batch |
| Lead time | 15 working days for prototypes, 20–25 days for production runs |
| Packaging | Anti-rust oil, individual foam wrap, export wooden case |
1. Batch-traceable quality. Every chuck gets a unique serial number. We record material heat number, heat treatment furnace log, and grinding machine parameters. If a problem appears in your line, we trace it to the exact batch and process step. No guesswork.
2. Inspection report per batch. You get a dimensional report with every shipment. Bore diameter, taper angle, concentricity, runout, hardness—all measured and documented. We use CMM, air gauges, and hardness testers calibrated to ISO standards. The report is not a formality; it is your proof of compliance.
3. One factory for CNC + stamping + spring + heat sink. Your chuck is not an isolated part. It works with springs, clamps, and heat dissipation components. We make all of them under one roof. Fewer suppliers, shorter lead times, and no finger-pointing when something does not fit. You send one drawing package; we coordinate the rest.
Custom CNC collet chucks are not shelf items. They are engineered for specific spindles and workpieces.
In every case, the chuck is a precision manufacturing component. It is the interface between the machine spindle and the workpiece. If it is wrong, nothing downstream is right.
Looking for a different part? We also machine Custom CNC Machined 2J Collet Chuck | Precision Manufacturing Made in China in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We machine one prototype or 10,000 pieces at the same quality level. Prototype pricing is higher per piece, but tooling and setup are the same. You pay for what you need.
Q: How do you guarantee tolerance and quality? A: We inspect 100% of critical dimensions on every chuck. Bore and taper are air-gauged. Concentricity is checked on a precision mandrel. A CMM report is included with each batch. If a dimension is out of spec, we do not ship it. We reject it at our cost, not yours.
Q: What is your lead time for a custom CNC collet chuck? A: Standard lead time is 15 working days for prototypes after drawing approval. Production runs of 500 pieces or more take 20–25 working days. If you need faster, tell us. We can split the batch or run overtime, but we will not skip inspection.
Q: Do you provide material certificates and heat treatment reports? A: Yes. Every batch comes with a material certificate from the mill and a heat treatment report showing hardness and case depth. If you require third-party testing, we arrange it at cost. No extra markup.
Send us your drawing and your spindle details. We will check the bore, taper, and clamping force requirements. You get a firm quote in 12 hours.
Email: sc@bquq.com WhatsApp: +86 13713157787
We are a custom CNC collet chuck factory made in China, but we ship to 30 countries. Your drawing is safe with us. Your quote is free. Your time is not wasted.
| 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 |
