OpeningYour 36 type collet is machined to your exact drawing, not a stock approximation. We verify every critical dimension before shipment.Tolerance: ±0.005 mm on bore and taperLead time: 7–10 days f
Your 36 type collet is machined to your exact drawing, not a stock approximation. We verify every critical dimension before shipment.
We are a precision manufacturing factory in Dongguan, China, with 20 years of CNC machining experience. Our auto lathe line is dedicated to collet chucks, so your parts are not mixed with general machining jobs.
| Parameter | Value |
|---|---|
| Type | 36 type collet (ER36 compatible, custom bore available) |
| Round bar stock capacity | Ø3 mm – Ø36 mm |
| Material options | 20CrMnTi, 40Cr, 65Mn, or 9SiCr |
| Hardness | 58–62 HRC case-hardened, core 35–40 HRC |
| Tolerance | Bore ±0.005 mm, taper angle ±0.5° |
| Surface finish | Ra 0.4 µm on bore, Ra 0.8 µm on taper |
| Slots | 3-slot or 4-slot design, laser-cut then deburred |
| Process | CNC turning, internal grinding, wire EDM for slots |
| Inspection | 100% bore gauge check, taper test with master gauge |
| Batch size | 1–50,000 pieces |
| Lead time | 7 days for 1–100 pcs, 15 days for 1,000+ pcs |
| Certification | Material certificate with every batch, optional CMM report |
We use CNC Swiss-type auto lathes for the body, then internal grinding for the bore. Slots are cut by wire EDM to avoid burrs on the gripping surface. Each collet is tested with a master taper gauge before packing.
1. Batch-traceable quality. Every heat number and batch is recorded. If you need to trace a collet back to its raw material, we can do that in minutes. No mixed batches, no mystery steel.
2. Inspection report per batch. You get a dimensional report with every order. Bore size, taper angle, hardness, and surface finish are all measured and documented. We do not ship without the report.
3. One factory for CNC + stamping + spring + heatsink. Your collet chuck may need a spring, a stamped retainer, or a heatsink for a high-speed spindle. We make all of these in-house. One PO, one quality standard, one shipping date. No coordination between multiple suppliers.
Custom CNC collet chucks are not limited to lathes. Our 36 type collets are used in:
In each case, the collet must hold round bar stock with zero runout. Our ±0.005 mm bore tolerance ensures that. If your application requires a non-standard bore, we machine it to your drawing.
Looking for a different part? We also machine Custom CNC Collet Chuck 30 Type Auto Lathe Round Bar Stock in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We accept one-piece orders for prototypes. Production pricing starts at 100 pieces, but you can order less.
Q: What tolerance can you hold on the bore? A: ±0.005 mm on the bore diameter, ±0.5° on the taper angle. We verify with a bore gauge and a master taper. If you need tighter, we can discuss grinding on a jig.
Q: What is your lead time for a custom collet? A: 7 days for up to 100 pieces, 15 days for 1,000 pieces. If you need faster, we can split the batch and ship partial quantities.
Q: Do you provide material certificates? A: Yes. Every batch comes with a mill certificate for the steel. We also provide hardness test reports and dimensional inspection reports at no extra cost.
Send us your 36 type collet drawing for a firm quote within 12 hours. We will review the bore, taper, and slot design, then give you a price and lead time.
Email: sc@bquq.com WhatsApp: +86 13713157787
No MOQ, no minimum order value. Just your drawing and our precision manufacturing.
| 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 |
