OpeningYour drawing defines the part. Our machines execute it. We verify every dimension before the chuck leaves our floor in Dongguan.This is a precision manufacturing service for CNC collet chucks b
Your drawing defines the part. Our machines execute it. We verify every dimension before the chuck leaves our floor in Dongguan.
This is a precision manufacturing service for CNC collet chucks built to your exact geometry. We do not sell off-the-shelf blanks. You send the print, we cut the steel, grind the mating surfaces, and ship a chuck that holds your workpiece within 0.005 mm TIR.
| Parameter | Value | Notes |
|---|---|---|
| Material options | 20CrMnTi, 40Cr, 9Cr18, 4140, 8620 | Case-hardened to 58–62 HRC where specified |
| Chuck size range | 4” to 12” (100–300 mm) | Custom diameters on request |
| Number of jaws | 6 (standard), 3 or 12 on request | Ground to match your part profile |
| Tolerance | ±0.005 mm on bore and OD | Verified with CMM (Zeiss) |
| Runout (TIR) | ≤0.008 mm at nose | Measured with test bar, 100% inspection |
| Surface finish | Ra 0.4 µm on gripping faces | Ground, not turned |
| Thread type | Metric or inch, class 2A/2B | Internal threads per your spec |
| Heat treatment | Carburizing + quench + temper | Depth 0.8–1.2 mm |
| Process | CNC turning, grinding, wire EDM for jaw slots | 5-axis machining for complex jaw profiles |
| Batch size | 1 to 10,000 pieces | No MOQ, batch traceability |
| Inspection | Full dimensional report per batch | Material certs included |
1. Batch-traceable quality. Every chuck gets a unique serial number. We record heat treatment lot, raw material heat number, and final CMM data. If a problem appears in your line, you trace it back to our furnace and our operator. No guesswork.
2. Inspection report per batch. You do not have to trust us. We send a PDF with all critical dimensions, runout measurements, and material certificates before shipment. For high-volume orders, we include SPC charts. Your incoming QC can skip the full inspection.
3. One factory for CNC + stamping + springs + heat sinks. Your chuck is not an island. Many buyers pair a collet chuck with a custom spring collet or a heat sink for the spindle motor. We run all four lines under one roof. You get one purchase order, one shipping date, one quality standard. Fewer vendors, fewer delays.
Custom CNC collet chucks from our factory go into:
We also make replacement jaws for existing chucks. Send the old part or a sketch, we match the profile.
Looking for a different part? We also machine Custom CNC Collet Chuck Precision Manufacturing Made in China | BQUQ in the same Dongguan factory.
Q: What is your MOQ? Zero. We machine one piece for a prototype or 5,000 for production. The unit price drops with quantity, but the first piece is never a problem.
Q: How do you guarantee tolerance and quality? Every chuck is measured on a Zeiss CMM. Runout is checked with a hardened test bar. We send the inspection report with the shipment. If any dimension is out of spec, we rework or replace at our cost. No arguments.
Q: What is the lead time? Standard steel: 15 working days after drawing approval. Hardened alloy (58 HRC or above): 20 working days. For urgent orders, we can split the batch – ship the first 20% in 7 days, the rest in 15.
Q: Do you provide material certificates? Yes. We supply mill certificates for raw material and our own heat treatment report. If you need third-party testing (UT, magnetic particle), we arrange it at cost.
Stop waiting on generic chucks that need rework. Send us your 2D or 3D file. We check the geometry for manufacturability, confirm the price, and start cutting.
Precision manufacturing is our only business. Made in China, verified before shipment, no MOQ. Your drawing is the next step.
| 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 |
