OpeningYou need a collet chuck that holds tight, runs true, and fits your auto lathe spindle without rework. We make it to your drawing. Every unit is verified before shipment. No
Custom CNC Collet Chuck Auto Lathe 15 Round Bore Precision Made in China
OpeningYou need a collet chuck that holds tight, runs true, and fits your auto lathe spindle without rework. We make it to your drawing. Every unit is verified before shipment. No guesswork.Tolerance:
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
You need a collet chuck that holds tight, runs true, and fits your auto lathe spindle without rework. We make it to your drawing. Every unit is verified before shipment. No guesswork.
Tolerance: 0.005 mm on bore and taper
Lead time: 10–15 working days for custom batches
No MOQ — order 1 piece or 1,000
Material: 20CrMnTi or 40Cr, case-hardened to HRC 58–62
This is a 15-type round bore spring collet chuck for auto lathes. The bore is ground after heat treatment. The taper is matched to your spindle nose. We check each chuck with a dial indicator before packing. Runout is under 0.01 mm.
10–15 working days (custom), 5 days (standard sizes)
We use CNC lathes and grinding machines with live tooling. Heat treatment is done in-house in a vacuum furnace. Final grinding is on a Studer or equivalent. Every chuck gets a serial number.
Three reasons buyers send us their drawings
1. Batch-traceable quality.
Each batch gets a unique code. We record material heat number, heat treatment parameters, and final inspection data. If a problem shows up on your line, we trace it in minutes. No vague answers.
2. Inspection report per batch.
You get a dimensional report with every order. It lists bore size, taper angle, hardness, and runout. We use a CMM and a profilometer. The report is signed by our QC engineer. You do not need to re-measure everything on arrival.
3. One factory for CNC + stamping + springs + heat sinks.
Your collet chuck is not an island. Often you also need a spring, a stamped retainer, or a heat sink for the spindle motor. We make all of them under one roof. One purchase order, one shipping point, one responsible party. This cuts your supplier list and your logistics cost.
Where these parts are used
This collet chuck fits automatic lathes used for high-volume turning of small parts. Typical applications:
Watch and instrument components — pinions, shafts, gears under 8 mm diameter. The 0.005 mm bore tolerance keeps runout low for fine finishing.
Medical device pins and bone screws — titanium and stainless steel. The hardened collet resists wear from abrasive materials.
Electronics connectors and terminals — brass and copper. The round bore holds thin stock without marking the surface.
Automotive fuel injector needles — high-cycle production. The spring collet opens and closes millions of times without fatigue.
Aerospace fasteners — small rivets and threaded inserts. The case-hardened surface holds up under repeated clamping.
If you machine parts under 15 mm diameter on an auto lathe, this chuck is the interface between your spindle and your workpiece. Get it wrong, and every part is scrap. Get it right, and you run unattended for hours.
Q: What is your MOQ?
A: No MOQ. We make one piece for prototyping and thousands for production. The price per piece drops with quantity, but we do not turn away small orders.
Q: How do you guarantee tolerance and quality?
A: We grind the bore and taper after heat treatment. We measure every unit with a CMM and a dial indicator. The inspection report is included with the shipment. If any dimension is out of spec, we replace the chuck at our cost.
Q: What is your lead time for a custom CNC collet chuck?
A: Standard sizes ship in 5 working days. Custom bores and tapers take 10–15 working days from drawing approval. We do not quote lead times we cannot meet.
Q: Can you provide material certificates?
A: Yes. We provide mill certificates for the raw material and our own heat treatment report. If you need third-party testing, we arrange it at cost.
Send your drawing
Send us your drawing or a sketch. We will check the bore size, taper angle, and material. You get a firm quote in 12 hours.
Email: sc@bquq.com
WhatsApp: +86 13713157787
We are a precision manufacturing factory in Dongguan, China, with 20 years of experience. Your custom CNC collet chuck will be made in China, inspected, and shipped on time. No MOQ. No surprises. Send the drawing.
