OpeningYour drawing defines the part. We machine it. Every custom CNC collet chuck is made to your exact geometry, verified before shipment. No guesswork.At a glance: Tolerance ±0.005 mm on bore and s
Your drawing defines the part. We machine it. Every custom CNC collet chuck is made to your exact geometry, verified before shipment. No guesswork.
At a glance: Tolerance ±0.005 mm on bore and slot. Lead time 7–15 days. No MOQ. One piece or ten thousand.
| Parameter | Value |
|---|---|
| Material options | 42CrMo, 20CrMnTi, 65Mn, SUS420, SUS440C, 12L14 |
| Heat treatment | Carburized or induction hardened, 58–62 HRC |
| Bore tolerance | ±0.005 mm |
| Slot width tolerance | ±0.01 mm |
| Concentricity (bore to OD) | ≤0.01 mm TIR |
| Surface finish | Ra 0.4 µm on bore, Ra 0.8 µm on OD |
| Machining process | CNC turning, CNC milling, wire EDM slotting, internal grinding |
| Inspection | 100% dimensional check, CMM report per batch |
| Batch size | 1–50,000 pcs |
| Lead time | 7 days for prototype, 15 days for production |
| Country of origin | Made in China, Dongguan factory |
1. Batch-traceable quality. Each batch gets a unique number. You can trace material heat number, heat treatment record, and inspection data back to the exact production run. If a problem appears in your assembly line, we identify the cause in minutes, not days.
2. Inspection report per batch. You receive a full dimensional report with every shipment. CMM data, hardness readings, surface roughness values. Not a generic certificate. Real numbers from real measurements. Your incoming QC signs off faster.
3. One factory for CNC + stamping + spring + heatsink. Your collet chuck is not the only part in your machine. We also make the springs inside the chuck, the stamped washers, and the heatsink for your spindle motor. One purchase order, one logistics point, one quality standard. Fewer suppliers means fewer headaches.
This 42-type collet chuck with square bar stock is designed for automatic lathes and CNC turning centers that feed square or hexagonal bar stock.
Typical applications:
The square bore holds the bar firmly without rotation. The slot allows radial compression. The hardened surface resists wear from continuous bar feeding. You get stable machining, fewer rejects, longer tool life.
Looking for a different part? We also machine Precision CNC Machined Auto Lathe Square Bore Collet Set 15-52mm in the same Dongguan factory.
Q: What is your minimum order quantity? A: No MOQ. We make one prototype for your validation, then scale to your production volume. Many buyers start with 5 pieces for testing, then order 500 or 5,000.
Q: How do you control tolerance and quality? A: We use CNC lathes and grinders with in-process gauging. Every critical dimension is measured on a CMM. We send you the inspection report before shipment. If a dimension is out of spec, we rework or scrap it. You never receive a bad part.
Q: What is your lead time? A: Prototype in 7 days. Production in 15 days after drawing approval. For urgent orders, we can expedite to 5 days for an additional charge. We ship worldwide via DHL, FedEx, or your freight forwarder.
Q: Can you provide material certificates? A: Yes. We provide mill certificates for raw material, heat treatment reports, and hardness test certificates. All documents are in English and available with your shipment.
We reply with a firm quote within 12 hours. No vague estimates. You get unit price, tooling cost (if any), lead time, and delivery terms. Send your 2D or 3D drawing in PDF, STEP, or IGES format.
Email: sc@bquq.com WhatsApp: +86 13713157787
Precision manufacturing is our only business. Your custom CNC collet chuck is made right, measured right, shipped right. Send the drawing. Get the quote.
| 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 |
