OpeningYour drawing defines the part. Our machines do the rest.We machine the Auto Lathe 34 Type Round Bore Spring Collet Chuck to your exact dimensions. Every unit is verified for
Custom CNC Collet Chuck Auto Lathe 34 Type Round Bore Precision Manufacturing
OpeningYour drawing defines the part. Our machines do the rest.We machine the Auto Lathe 34 Type Round Bore Spring Collet Chuck to your exact dimensions. Every unit is verified for concentricity and b
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
Your drawing defines the part. Our machines do the rest.
We machine the Auto Lathe 34 Type Round Bore Spring Collet Chuck to your exact dimensions. Every unit is verified for concentricity and bore tolerance before shipment. No guesswork, no rejects on your spindle.
Concentricity: ≤ 0.005 mm TIR
Bore tolerance: ± 0.01 mm
Lead time: 15-20 working days after drawing approval
No MOQ: order 1 piece or 10,000 pieces
Material certs and full inspection report included with every batch
Specifications
Parameter
Value
Material options
65Mn spring steel, 60Si2MnA, 9Cr18MoV stainless, or per your spec
Heat number + batch code laser marked on each chuck
Lead time
15-20 working days (samples 10-12 days)
MOQ
No MOQ
We use wire EDM for the spring slots. This gives clean, burr-free edges and consistent finger flexibility. The bore is ground after heat treatment to hold the ± 0.01 mm tolerance.
Three reasons buyers send us their drawings
1. Batch-traceable quality
Every batch gets a unique code. We record material heat number, machine operator, and inspection results. If a problem appears in your assembly line, we trace it back to the exact batch and shift. You get a written record, not excuses.
2. Inspection report per batch
You receive a full dimensional report with each shipment. This includes bore diameter, concentricity, hardness, and surface finish readings. Our QC team uses calibrated CMM and hardness testers. Reports are signed and dated. No hidden deviations.
3. One factory for CNC + stamping + springs + heat sinks
We run four production lines under one roof. Your collet chuck is not a one-off job. If your project also needs a stamped retainer plate, a custom spring, or a heat sink for the drive unit, we make it all. One purchase order, one quality standard, one shipping point. Less coordination, fewer delays.
Where these parts are used
The Auto Lathe 34 Type Round Bore Spring Collet Chuck is a workholding component for automatic lathes and Swiss-type machines. It grips round bar stock or pre-machined parts during turning, drilling, and threading operations.
High-volume production of small precision shafts for electric motors
Guide pins and dowel pins for automotive assemblies
Fastener blanks (screws, bolts) before thread rolling
Medical device components like bone screws and drill bits
Watch and instrument parts requiring repeatable centering
Replacement collets for aging Japanese and European auto lathes
The round bore design suits cylindrical stock from 3 mm to 34 mm. The spring fingers collapse evenly to grip the part without marring the surface. This makes it suitable for finished or semi-finished parts where surface quality matters.
Q: What is your MOQ?
A: No MOQ. We accept single-piece orders for samples or urgent replacements. Production runs of 500+ pieces get a small price break, but we never force you to buy more than you need.
Q: How do you guarantee tolerance and concentricity?
A: We grind the bore after heat treatment. Then we measure every piece on a CMM. Concentricity is held to 0.005 mm TIR or better. The inspection report with actual readings ships with your order.
Q: What is your lead time?
A: Standard lead time is 15-20 working days after drawing approval. Sample orders take 10-12 days. If you need faster, we can discuss an expedited schedule for a small surcharge.
Q: Can you provide material certificates?
A: Yes. We supply mill certificates for the raw material and our own heat treatment records. All materials are sourced from certified mills. We can also provide RoHS and REACH compliance documents upon request.
Send your drawing
Email your 2D drawing or 3D model to sc@bquq.com. Include material, hardness, and quantity if you know them. If not, we will recommend based on your application.
We reply with a firm quote within 12 hours. No vague estimates. You get unit price, tooling cost (if any), and confirmed lead time.
Prefer chat? WhatsApp +86 13713157787. We have engineers on staff, not just salespeople. Ask us about the 34 Type collet geometry or spring finger design.
Precision manufacturing, made in China, no MOQ. Send your drawing today.
