OpeningYour 36 type collet is machined to your exact drawing, not a stock approximation. We verify every critical dimension before shipment.Tolerance: 0.005 mm on bore and taperLe
Custom CNC Collet Chuck 36 Type Auto Lathe Precision Made in China
OpeningYour 36 type collet is machined to your exact drawing, not a stock approximation. We verify every critical dimension before shipment.Tolerance: ±0.005 mm on bore and taperLead time: 7–10 days f
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
Your 36 type collet is machined to your exact drawing, not a stock approximation. We verify every critical dimension before shipment.
Tolerance: ±0.005 mm on bore and taper
Lead time: 7–10 days for prototypes, 15–20 days for production runs
No MOQ: order one piece or ten thousand
Material: 20CrMnTi, 40Cr, or 65Mn steel, case-hardened to 58–62 HRC
We are a precision manufacturing factory in Dongguan, China, with 20 years of CNC machining experience. Our auto lathe line is dedicated to collet chucks, so your parts are not mixed with general machining jobs.
Specifications
Parameter
Value
Type
36 type collet (ER36 compatible, custom bore available)
Round bar stock capacity
Ø3 mm – Ø36 mm
Material options
20CrMnTi, 40Cr, 65Mn, or 9SiCr
Hardness
58–62 HRC case-hardened, core 35–40 HRC
Tolerance
Bore ±0.005 mm, taper angle ±0.5°
Surface finish
Ra 0.4 µm on bore, Ra 0.8 µm on taper
Slots
3-slot or 4-slot design, laser-cut then deburred
Process
CNC turning, internal grinding, wire EDM for slots
Inspection
100% bore gauge check, taper test with master gauge
Batch size
1–50,000 pieces
Lead time
7 days for 1–100 pcs, 15 days for 1,000+ pcs
Certification
Material certificate with every batch, optional CMM report
We use CNC Swiss-type auto lathes for the body, then internal grinding for the bore. Slots are cut by wire EDM to avoid burrs on the gripping surface. Each collet is tested with a master taper gauge before packing.
Three reasons buyers send us their drawings
1. Batch-traceable quality.
Every heat number and batch is recorded. If you need to trace a collet back to its raw material, we can do that in minutes. No mixed batches, no mystery steel.
2. Inspection report per batch.
You get a dimensional report with every order. Bore size, taper angle, hardness, and surface finish are all measured and documented. We do not ship without the report.
3. One factory for CNC + stamping + spring + heatsink.
Your collet chuck may need a spring, a stamped retainer, or a heatsink for a high-speed spindle. We make all of these in-house. One PO, one quality standard, one shipping date. No coordination between multiple suppliers.
Where these parts are used
Custom CNC collet chucks are not limited to lathes. Our 36 type collets are used in:
Swiss-type automatic lathes for medical screw and implant production
CNC turning centers for valve stems and hydraulic fittings
High-speed spindle tool holders for PCB drilling
Spring collets in automotive fuel injector assembly lines
Custom fixtures for optical lens polishing machines
In each case, the collet must hold round bar stock with zero runout. Our ±0.005 mm bore tolerance ensures that. If your application requires a non-standard bore, we machine it to your drawing.
Q: What is your MOQ?
A: No MOQ. We accept one-piece orders for prototypes. Production pricing starts at 100 pieces, but you can order less.
Q: What tolerance can you hold on the bore?
A: ±0.005 mm on the bore diameter, ±0.5° on the taper angle. We verify with a bore gauge and a master taper. If you need tighter, we can discuss grinding on a jig.
Q: What is your lead time for a custom collet?
A: 7 days for up to 100 pieces, 15 days for 1,000 pieces. If you need faster, we can split the batch and ship partial quantities.
Q: Do you provide material certificates?
A: Yes. Every batch comes with a mill certificate for the steel. We also provide hardness test reports and dimensional inspection reports at no extra cost.
Send your drawing
Send us your 36 type collet drawing for a firm quote within 12 hours. We will review the bore, taper, and slot design, then give you a price and lead time.
Email: sc@bquq.com
WhatsApp: +86 13713157787
No MOQ, no minimum order value. Just your drawing and our precision manufacturing.
