OpeningThis is the 36 Type collet, cut away so you can see exactly what holds your workpiece. We machine it to your drawing, not from a stock catalog. Every dimension is verified before shipment. You
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OpeningThis is the 36 Type collet, cut away so you can see exactly what holds your workpiece. We machine it to your drawing, not from a stock catalog. Every dimension is verified before shipment. You
This is the 36 Type collet, cut away so you can see exactly what holds your workpiece. We machine it to your drawing, not from a stock catalog. Every dimension is verified before shipment. You get a part that fits your spindle and repeats within 0.005 mm.
At a glance: Material 20CrMnTi or 9SiCr, hardness HRC 58-62, concentricity ≤ 0.005 mm, lead time 7-12 days, no MOQ.
We are BQUQ, a precision manufacturing factory in Dongguan, China. We have run CNC lines for 20 years. This collet is made on auto lathes and CNC grinders. The cutaway view is not a render. It is a photograph of a real part we produced for a customer in the automotive sector.
| Parameter | Value |
|---|---|
| Material options | 20CrMnTi, 9SiCr, GCr15, 65Mn |
| Hardness | HRC 58-62 (core), HRC 60-63 (slot area) |
| Concentricity (ID to OD) | ≤ 0.005 mm |
| Slot width tolerance | ± 0.02 mm |
| Surface finish | Ra 0.4 on taper, Ra 0.8 on bore |
| Taper angle | 16° or 30° (per your drawing) |
| Max OD | 36 mm (standard auto lathe size) |
| Min bore | 3 mm |
| Process | Auto lathe turning, CNC milling slots, surface grinding, heat treatment |
| Heat treatment | Carburizing or through hardening, then tempering |
| Inspection | 100% dimension check, 5% CMM sampling |
| Batch size | 1 piece to 50,000 pieces |
| Lead time | 7 days for samples, 12 days for production |
| MOQ | No MOQ |
We hold the taper angle to ± 0.005 mm. The slots are milled with a 0.3 mm cutter, then deburred by hand under a microscope. The cutaway view shows the internal relief we add so the collet closes evenly under pressure.
1. Batch-traceable quality. Each batch gets a unique heat number. We record material cert, heat treatment curve, and final inspection data. If a problem appears on your line six months later, we can trace it to the exact furnace load and operator.
2. Inspection report per batch. You do not have to trust us. Every shipment includes a dimensional report with actual measured values, not just pass/fail marks. We also send photos of the critical features—taper angle, slot width, and bore concentricity—taken on a CMM.
3. One factory for CNC, stamping, springs, and heat sinks. Your collet chuck is not the only part you need. We also run metal stamping presses, spring coiling machines, and CNC heat sink lines. Send us your full BOM. We deliver more parts from one audit, one shipping point, and one invoice. This cuts your supplier management time in half.
The 36 Type collet is a workhorse for auto lathes and Swiss-type machines. You will find it in:
The cutaway view matters here. It shows the internal slot geometry that lets the collet flex without cracking. That is the difference between a collet that lasts 200,000 cycles and one that fails at 20,000.
Looking for a different part? We also machine Precision CNC Machined Auto Lathe 32 Type Square Bore Spring Collet in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We make one piece for a sample, or 50,000 for production. Sample price is higher per piece, but the tooling is the same.
Q: How do you control tolerance and quality? A: We grind the taper after heat treatment to remove distortion. Every collet is checked on an air gauge for bore size and a sine bar for taper angle. We send a CMM report with each batch.
Q: What is your lead time? A: 7 days for samples, 12 days for production runs up to 10,000 pieces. If you need it faster, we can split the batch and ship partial orders.
Q: Can you provide material certificates? A: Yes. We supply mill certs for raw material, heat treatment reports, and a declaration of conformity. All documents are in English and stamped by our QC department.
Send us your drawing in PDF, STEP, or IGES format. We reply with a firm quote in 12 hours. That quote includes material cost, machining time, heat treatment, inspection, and shipping. No hidden fees.
Email: sc@bquq.com WhatsApp: +86 13713157787
We are a precision manufacturing factory made in China, but we work to international standards. Your custom CNC collet chuck will be verified before shipment. You will know exactly what you are getting before it leaves our floor.
| 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 |
