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
Custom CNC Collet Chuck Precision Manufacturing | No MOQ Made in China
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
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
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.
Tolerance: ±0.005 mm on critical diameters, 0.008 mm TIR on gripping surfaces
Lead time: 15 working days for standard steel, 20 for hardened alloy
MOQ: none. One piece is fine.
Origin: made in China, BQUQ factory, 20 years in precision machining.
Specifications
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
Three Reasons Buyers Send Us Their Drawings
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.
Where These Parts Are Used
Custom CNC collet chucks from our factory go into:
Swiss-type lathes for medical screw machining – 6 jaws hold thin-walled titanium without distortion.
Multi-spindle automatics in automotive fuel injector lines – repeatable gripping for 20,000+ cycles.
High-speed turning centers for aerospace bushings – runout below 0.008 mm keeps finish pass stock consistent.
Hydraulic expansion chucks on CNC grinders – our 6-jaw design replaces diaphragm chucks for odd-shaped blanks.
Prototype shops – one-off chuck for a non-standard part profile, delivered in 15 days.
We also make replacement jaws for existing chucks. Send the old part or a sketch, we match the profile.
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.
Send Your Drawing
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.
Firm quote in 12 hours – not a ballpark, a fixed number.
Email: sc@bquq.com
WhatsApp: +86 13713157787
Precision manufacturing is our only business. Made in China, verified before shipment, no MOQ. Your drawing is the next step.
