OpeningYour drawing defines the part. We machine it. Every collet is verified before shipment. No exceptions.This is a 25-type multi-slot round bore collet for auto lathes. It holds bar stock from Ø3
Get a quote
-
English
- sc@bquq.com
OpeningYour drawing defines the part. We machine it. Every collet is verified before shipment. No exceptions.This is a 25-type multi-slot round bore collet for auto lathes. It holds bar stock from Ø3
Your drawing defines the part. We machine it. Every collet is verified before shipment. No exceptions.
This is a 25-type multi-slot round bore collet for auto lathes. It holds bar stock from Ø3 mm to Ø25 mm. Slots are cut full-length for even clamping force. Bore tolerance is held to ±0.005 mm.
We are a precision manufacturing factory with 20 years in CNC machining, stamping, springs, and heat sinks. You send the drawing. We do the rest.
| Parameter | Value |
|---|---|
| Material | 65Mn spring steel, 20CrMnTi, 40Cr, or per drawing |
| Hardness | HRC 48–52 (through-hardened) or HRC 58–62 (case-hardened) |
| Bore tolerance | ±0.005 mm |
| OD tolerance | ±0.01 mm |
| Slot width | 0.5–3.0 mm, per drawing |
| Slot count | 3, 4, 6, or 8 slots |
| Surface finish | Ra 0.4 µm on bore, Ra 0.8 µm on OD |
| Machining | CNC lathe, CNC milling, wire EDM for slots |
| Heat treatment | Vacuum hardening + tempering |
| Inspection | 100% dimensional check, bore gauge + CMM |
| Batch size | 1–50,000 pieces |
| Lead time | 7 days for prototypes, 12 days for production |
We use wire EDM for slot cutting. This gives a clean, burr-free edge. No laser. No plasma. The bore is ground after hardening. That is how we hold ±0.005 mm.
1. Batch-traceable quality Each batch gets a unique heat number and job number. Material certs are stored for 10 years. If a problem appears in your line, we trace it back to the exact melt and machine. You get full traceability, not a vague "we checked it."
2. Inspection report per batch Every batch ships with a dimensional report. It lists bore diameter, OD, slot width, hardness, and surface finish. We use a CMM and bore gauges calibrated to ISO 9001 standards. You do not need to re-inspect everything. Spot-check and run.
3. One factory for CNC + stamping + spring + heatsink Your collet is not the only part in your assembly. We also make springs, stamped brackets, and heatsinks. One purchase order, one supplier, one shipping date. Fewer emails, fewer delays, lower freight cost.
This 25-type collet is for auto lathes — the kind used in high-volume screw machining. Typical applications:
If you run an auto lathe, you need a collet that does not drift. Ours do not.
Looking for a different part? We also machine Custom CNC Collet Chuck Auto Lathe 25 Type Triangle Bar Stock in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We make one piece for prototyping or 50,000 for production. The unit price drops with quantity, but the quality standard is the same.
Q: How do you guarantee ±0.005 mm tolerance? A: We grind the bore after heat treatment. Then we measure every part with a bore gauge. A CMM spot-check is done per batch. The inspection report ships with the goods.
Q: What is the lead time for a custom CNC collet chuck? A: Prototypes in 7 days. Production batches in 12 days after drawing approval. For urgent orders, we can rush in 5 days at a 10% surcharge.
Q: Can you provide material certificates? A: Yes. Mill test certificates, heat treatment reports, and hardness test reports are available for every batch. We keep records for 10 years.
Send us your PDF or STEP file. We will check the bore, slot count, and material. You get a firm quote in 12 hours.
No MOQ. No hidden tooling fees. Just precision manufacturing, made in China, verified before shipment.
Email: sc@bquq.com WhatsApp: +86 13713157787
Your custom CNC collet chuck is one drawing away. Send it.
| Parameter | Capability |
|---|---|
| Materials | AL6061/7075, SUS303/304/316, 45# steel, T2 copper, H59 brass, POM, PEEK, nylon |
| Tolerance | ±0.005mm standard, ±0.003mm on request |
| Machines | 3/4/5-axis CNC, turn-mill, Swiss lathe |
| Surface | Anodizing, nickel, zinc, passivation, sandblast, polish |
| Size Range | Max 400 x 300 x 200 mm |
| Prototype | 72 hours, no MOQ on samples |
| Inspection | Full report per batch, CMM data on request |
