OpeningYour drawing defines the part. We define the process to hit it. This is a custom CNC collet chuck, machined from bar stock or forging, built to your exact taper and thread specs.We verify every
Your drawing defines the part. We define the process to hit it. This is a custom CNC collet chuck, machined from bar stock or forging, built to your exact taper and thread specs.
We verify every critical dimension before shipment. No surprises at your spindle.
| Parameter | Value |
|---|---|
| Material options | 20CrMnTi, 40Cr, 42CrMo, 9Cr18, S136, 4140, 8620 |
| Hardening | Carburized 58–62 HRC, or induction hardened 50–55 HRC |
| Taper accuracy | AT3 or better per ISO 1947 (≤ 0.005 mm over 100 mm) |
| Concentricity | ≤ 0.005 mm TIR at nose, ≤ 0.01 mm at 100 mm from nose |
| Surface finish | Ra 0.4 µm on taper, Ra 0.8 µm on body |
| Threads | Ground or cut, class 2A/2B or better |
| Keyway / drive slots | Broached or wire-cut, ±0.01 mm width |
| Machines | 5-axis CNC turning centers, CNC grinders, wire EDM |
| Process | Turning → milling → heat treat → grinding → final inspection |
| Batch size | 1 to 50,000+ pieces |
| Certification | Material certs (EN 10204 3.1), dimensional inspection report |
We use CNC turning for the body, then CNC grinding for the taper and bore. Heat treatment is done in-house or with our certified partner. Final inspection uses a CMM and taper gauges.
1. Batch-traceable quality. Every piece gets a unique serial number. We record material heat number, machine operator, and inspection results. If a problem shows up in your shop, we trace it back to the exact batch and process step. You get full traceability from raw bar to finished chuck.
2. Inspection report per batch. You do not have to trust us. Each batch ships with a dimensional report. We measure taper angle, concentricity, hardness, and surface finish. For critical dimensions, we provide CMM data points. If you need a full PPAP or FAIR, we do that too.
3. One factory for CNC + stamping + springs + heat sinks. Your collet chuck is not the only part you need. We run four production lines under one roof. CNC machining, metal stamping, spring coiling, and heat sink fabrication. Send us your whole BOM. We coordinate the processes, reduce your supplier list, and cut logistics cost.
Custom CNC collet chucks are not just for standard milling machines. We machine them for:
If it spins, holds a tool, or clamps a part, we can machine it.
Looking for a different part? We also machine Custom CNC Collet Chuck HSK100 ER40 Precision Manufacturing Made in China in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We machine one prototype for you to test. Once approved, we scale to your volume. Small batch runs are welcome.
Q: How do you guarantee tolerance and quality? A: We use CNC grinders with in-process gauging. After grinding, we check every critical dimension on a CMM. Taper angle is verified with a calibrated air gauge. We ship a full inspection report with the batch. If any dimension is out of spec, we replace the part free.
Q: What is your lead time? A: Prototypes are 7–12 working days. Production runs are 15–20 working days, depending on quantity and heat treatment cycle. Rush orders are possible for an additional fee.
Q: Can you provide material certificates? A: Yes. We provide EN 10204 3.1 material certificates for all alloy steels. We also provide hardness test reports and any third-party testing you require.
Send us your 2D drawing or 3D model. We will review the tolerances, suggest material and heat treatment if needed, and give you a firm quote in 12 hours.
Email: sc@bquq.com WhatsApp: +86 13713157787
Precision manufacturing, made in China, with no MOQ. Your custom CNC collet chuck starts with one message.
| 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 |
