OpeningYour drawing defines the part. We machine it. Before any box leaves our Dongguan floor, every CNC collet chuck is checked on a CMM and a test run with a master collet. You get a part that seats
Your drawing defines the part. We machine it. Before any box leaves our Dongguan floor, every CNC collet chuck is checked on a CMM and a test run with a master collet. You get a part that seats true, grips concentric, and repeats within 0.005 mm.
We are a precision manufacturing factory in Dongguan, China, with 20 years on CNC machining lines. Your chuck is not a side job. It is our core work.
| Parameter | Value |
|---|---|
| Material | 20CrMnTi, 40Cr, 9Cr18, or per your spec |
| Hardening | Carburized 58–62 HRC, core 30–40 HRC |
| Machining | 5-axis CNC turning-milling, ID/OD grinding |
| Key tolerance | Runout ≤ 0.005 mm TIR at nose, taper angle ± 0° 0' 10" |
| Surface finish | Ra 0.4 µm on taper, Ra 0.8 µm on body |
| Threads | Class 2B or 3B, pitch per your drawing |
| Balancing | G2.5 at 3000 RPM optional |
| Inspection | 100% dimensional check, CMM report per batch |
| Batch size | 1–10,000 pieces, no MOQ |
| Lead time | 15 days for prototype, 20 days for production |
| Packaging | Anti-rust oil, foam insert, export carton |
We use Mazak and Doosan CNC lathes with live tooling. Grinding is done on Studer cylindrical grinders. No shortcuts on heat treatment—we run carburizing in-house with batch tracking.
1. Batch-traceable quality Each custom CNC collet chuck gets a heat number and a work order number. If you need to trace a batch back to the steel coil and the operator, we have the records. No guesswork. No mixed batches.
2. Inspection report per batch You do not have to ask. Every shipment includes a dimensional inspection report with actual measured values, not just a pass/fail stamp. For critical tapers, we include a roundness and runout chart. This saves your incoming QC hours.
3. One factory for CNC + stamping + springs + heat sinks Your chuck may sit in an assembly with a stamped housing, a compression spring, and a heat sink. We make all four. You send one drawing package, get one quote, one quality system, one shipping point. Fewer suppliers, fewer delays, fewer arguments.
Our CNC collet chucks go into workholding systems for lathes, milling centers, and grinding machines. Common end uses:
In every case, the chuck is the last thing between the spindle and the workpiece. If it wobbles, the part fails. Our tapers are ground to match your master collet, not just to a nominal angle.
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 piece for a prototype or 10,000 for production. The unit price drops with quantity, but the first piece gets the same inspection as the last.
Q: How do you guarantee tolerance and quality? A: We grind the taper and gripping diameters in the same setup to eliminate concentricity error. Every piece is measured on a CMM. We send you the report. If a part is out of spec, we replace it at no cost.
Q: What is your lead time for a custom CNC collet chuck? A: 15 working days for a prototype after drawing approval. Production runs of 100+ pieces take 20 working days. Urgent orders can be expedited to 10 days with a small surcharge.
Q: Can you provide material certificates? A: Yes. Mill test reports for the raw steel, heat treatment certificates, and hardness test reports are included with every batch. We also keep samples for 12 months.
Send us your 2D or 3D file. We will check the design for manufacturability, confirm the material and heat treatment, and return a firm quote within 12 hours. No MOQ, no hidden tooling charges. We are a precision manufacturing factory in Dongguan, China, and we have been doing this for 20 years.
Email: sc@bquq.com WhatsApp: +86 13713157787
Your custom CNC collet chuck, made in China, verified before shipment.
| 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 |
