OpeningThis is a 46 type auto lathe spring collet with a triangle bore, machined to your exact drawing. We do not stock generic blanks and modify them. We start from raw bar stock
Custom CNC Collet Chuck 46 Type Triangle Bore Spring Collet | BQUQ
OpeningThis is a 46 type auto lathe spring collet with a triangle bore, machined to your exact drawing. We do not stock generic blanks and modify them. We start from raw bar stock and cut every featur
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
This is a 46 type auto lathe spring collet with a triangle bore, machined to your exact drawing. We do not stock generic blanks and modify them. We start from raw bar stock and cut every feature—bore profile, slot geometry, and back taper—to your print.
Every collet is verified before shipment. We use a CMM and a go/no-go gauge set matched to your workpiece diameter. If the bore does not seat your part within the specified tolerance, it does not ship.
At a glance: Tolerance ±0.005 mm on bore diameter, surface finish Ra 0.4, lead time 7–12 days, no MOQ.
Specifications
Parameter
Value
Type
46 type auto lathe spring collet
Bore shape
Triangle (3-point contact)
Material options
65Mn spring steel, 60Si2MnA, 9Cr18 stainless, 20CrMnTi case-hardened
7 days for prototypes, 12 days for production batches
Three reasons buyers send us their drawings
1. Batch-traceable quality. Every heat lot is assigned a number. We record material cert, heat treatment furnace cycle, and final inspection data against that number. If a collet fails in your machine six months from now, we can trace it back to the exact bar stock and process parameters. You get a full traceability document with each shipment.
2. Inspection report per batch. We do not sample one part and assume the rest are fine. Each collet is checked for bore size, slot width, and hardness. For batches over 100 pieces, we include a variable data report showing the distribution of bore measurements. You know exactly what you are receiving, not what we hope you are receiving.
3. One factory for CNC, stamping, springs, and heat sinks. Your collet is not the only part in your assembly. You likely need a spring, a stamped retainer, or a heat sink for the spindle drive. We make all of them under one roof. That means one purchase order, one quality system, one shipping date. No coordinating three suppliers and hoping their tolerances match.
Where these parts are used
A 46 type triangle bore collet is a workholding component. It grips round, hex, or triangular stock in automatic lathes and Swiss-type machines.
Typical applications:
High-volume screw machining – holding brass, aluminum, or free-cutting steel bar for automotive connectors and fittings.
Medical device manufacturing – gripping small-diameter stainless wire for bone screws and implant drivers, where concentricity is critical.
Electronics pin production – holding copper or beryllium copper rod for connector pins and terminals.
Hydraulic and pneumatic fittings – clamping hex stock for machining valve bodies and adapter fittings.
Retrofit and replacement – matching an existing collet from a Japanese or European machine where the original supplier has long lead times.
The triangle bore design gives three-point contact. That means less deformation on thin-walled parts and better grip on out-of-round stock compared to a round bore.
Q: What is your MOQ?
A: No MOQ. We make one piece for a prototype and 10,000 pieces for production. The unit price drops with quantity, but we do not force you to buy more than you need.
Q: How do you guarantee tolerance and quality?
A: We grind the bore after heat treatment, not before. That is the only way to hold ±0.005 mm. Each collet is measured on a CMM, and we send the inspection report with the shipment. If a part is out of spec, we replace it at no cost.
Q: What is your lead time?
A: 7 days for a prototype or small batch. 12 days for production quantities. We run three shifts on the CNC line, so we do not quote long lead times to make our schedule look better.
Q: Can you provide material certificates?
A: Yes. We supply mill certificates from the steel mill, our own heat treatment report, and a hardness test certificate. All documents are in English and are included with the packing list.
Send your drawing
Send us your drawing in PDF, STEP, or IGES format. We will review the bore geometry, slot configuration, and material requirements, then send you a firm quote within 12 hours.
We are a precision manufacturing factory in Dongguan, China, with 20 years of experience in CNC machining, metal stamping, springs, and heat sinks. Your custom CNC collet chuck is made in China, but it is made to your drawing, not to a local standard.
Email: sc@bquq.com
WhatsApp: +86 13713157787
No MOQ. No minimum order quantity. Just send the drawing and get a price.
