OpeningYour drawing defines the part. We machine it to spec and verify it before shipment. No guesswork, no tolerance gambling.This is a 700 Type round bore spring collet chuck for auto lathes. It is
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OpeningYour drawing defines the part. We machine it to spec and verify it before shipment. No guesswork, no tolerance gambling.This is a 700 Type round bore spring collet chuck for auto lathes. It is
Your drawing defines the part. We machine it to spec and verify it before shipment. No guesswork, no tolerance gambling.
This is a 700 Type round bore spring collet chuck for auto lathes. It is built for high-speed, high-repeatability gripping. We make it from your print, in the exact material and hardness you specify.
| Parameter | Value |
|---|---|
| Type | 700 Type round bore spring collet chuck |
| Application | Auto lathe (Swiss-type and CNC turning centers) |
| Bore diameter range | Ø 3 mm – Ø 40 mm (custom to drawing) |
| Concentricity (TIR) | ≤ 0.005 mm |
| Bore tolerance | ± 0.005 mm |
| Hardness | 55–60 HRC (case-hardened) |
| Surface finish | Ra 0.4 µm on gripping surface |
| Material options | 65Mn spring steel, 60Si2Mn, 9Cr18, SUS420 |
| Key slots / threads | Per your drawing (M8, M10, M12, or custom) |
| Slots | Laser-cut or wire-cut, burr-free |
| Process | CNC turning, CNC milling, wire EDM, heat treatment, surface grinding |
| Inspection | 100% CMM check on critical dimensions |
| Batch size | 1 – 10,000 pcs |
| Lead time | 15 days (sample), 20 days (production) |
| Packaging | Anti-rust oil, individual foam wrap, export carton |
| Origin | Dongguan, China (made in China) |
1. Batch-traceable quality. Every lot gets a unique batch number. We record material heat number, heat treatment curve, and final inspection data. If a problem appears in your line, we trace it back to the exact batch in minutes.
2. Inspection report per batch. You get a full dimensional report with every shipment. Not a generic certificate – actual measured values for bore diameter, concentricity, hardness, and surface finish. Our QC team uses CMM, optical comparators, and Rockwell hardness testers.
3. One factory for CNC + stamping + spring + heat sink. Your collet chuck is not an isolated part. Many buyers also need springs, stampings, or heat sinks for the same assembly. We run all four lines under one roof. You send one drawing package, get one quote, one quality standard, one shipping schedule.
The 700 Type round bore spring collet chuck is a workhorse in precision manufacturing. Common applications:
These chucks run at 6,000–10,000 RPM. They grip and release millions of cycles. The spring steel temper and slot geometry are what keep them accurate over that life. We control both.
Looking for a different part? We also machine Custom CNC Collet Chuck 22 Type Round Bore Auto Lathe Precision Manufacturing in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We make one prototype for your validation, then scale to your production volume. Tooling is included in the piece price for small batches.
Q: How do you guarantee tolerance and quality? A: We inspect 100% of critical dimensions on every piece. For batches over 500 pcs, we use SPC sampling on top of full inspection. You receive the measured report, not a promise.
Q: What is the lead time for a custom CNC collet chuck? A: 15 working days for a sample (1–5 pcs). 20 working days for production batches. If you need faster, we can split the order and ship partial lots.
Q: Can you provide material certificates and heat treatment reports? A: Yes. We supply mill certificates for raw material and a heat treatment curve with hardness values for every batch. Third-party testing (SGS, BV) is available at your cost.
Get a firm quote within 12 hours. We review your print for manufacturability, suggest improvements if needed, and confirm price and lead time in one email.
Email: sc@bquq.com WhatsApp: +86 13713157787
Send the PDF or STEP file. We handle the rest.
| 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 |
