OpeningYour drawing becomes a finished CNC collet chuck, verified before shipment. We machine the 46 Type round bore spring collet to your exact dimensions. Every unit is checked against your print. N
Your drawing becomes a finished CNC collet chuck, verified before shipment. We machine the 46 Type round bore spring collet to your exact dimensions. Every unit is checked against your print. No guesswork.
We run a dedicated auto lathe line for collet chucks. The 46 Type refers to the spindle nose size — a common fit for Swiss-type and multi-spindle auto lathes. The round bore is ground after heat treatment to hold consistent clamping force.
| Parameter | Value |
|---|---|
| Material options | 65Mn spring steel, GCr15 bearing steel, 20CrMnTi case-hardened steel |
| Hardness | 45–55 HRC (spring steel), 58–62 HRC (bearing steel) |
| Bore diameter range | 3 mm – 46 mm, ground to your drawing |
| Taper angle | 30° or 45° per standard, or custom |
| Tolerance on bore | ±0.005 mm |
| Tolerance on taper | ±0.01 mm |
| Surface finish | Ra 0.4 µm on bore, Ra 0.8 µm on body |
| Slot width | 0.5 – 2.0 mm, EDM wire-cut |
| Heat treatment | Quench + temper, or carburizing |
| Inspection | 100% dimensional check, hardness test per batch |
| Batch size | 1 piece minimum, no MOQ |
| Lead time | 15–20 working days, faster for standard sizes |
We use CNC lathes for the outer profile, then wire EDM for the slots. Grinding is done on a jig grinder to hold the bore and taper concentric within 0.005 mm. Each chuck is serialized and stored with its inspection record for three years.
1. Batch-traceable quality. Every heat lot is tracked. Hardness test reports are attached to each batch. If you need to trace a part back to its material melt, we can do it. No mixed batches, no swapped steel.
2. Inspection report per batch. You get a dimensional report with actual measured values — not just a pass/fail stamp. Bore diameter, taper angle, slot width, hardness. All numbers are on paper. This saves your incoming QC time.
3. One factory for CNC + stamping + springs + heat sinks. Your collet chuck is not the only part you need. We also make springs, metal stampings, and heat sinks. Send us a full assembly drawing, and we coordinate all processes under one roof. Fewer suppliers, fewer delays, one shipping point.
The 46 Type round bore spring collet chuck is a workhorse in precision manufacturing. You will find it in:
If your part needs a collet that grips round stock without marking it, this is the chuck to specify.
Looking for a different part? We also machine Custom CNC Collet Chuck Auto Lathe 42 Square Bore Spring Collet in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We accept a single piece for prototype validation. Production orders of 500+ pieces get a price break. Tooling cost is amortized into the unit price for small batches.
Q: How do you control tolerance and quality? A: We grind the bore and taper after heat treatment. Each chuck is measured on a CMM and a hardness tester. The inspection report is included with shipment. If a dimension is out of spec, we replace the part at no cost.
Q: What is your lead time? A: Standard custom collets are 15–20 working days from drawing approval. For standard 46 Type sizes with common bores, we can ship in 7–10 working days. Urgent orders are possible if your material is in stock.
Q: Can you provide material certificates? A: Yes. We supply mill certificates for the raw material, heat treatment reports, and a full dimensional inspection report. All documents are in English and stamped by our QC department.
Email your 2D or 3D file to sc@bquq.com. We reply with a firm quote in 12 hours. Include your bore size, taper angle, material, and quantity. If you do not have a full drawing, send a sample part — we reverse-engineer it and confirm the spec before cutting metal.
WhatsApp: +86 13713157787 We respond within one business hour, 8:00–20:00 Beijing time.
Your custom CNC collet chuck, made in China, verified before shipment. No MOQ, no surprises.
| 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 |
