openingYour drawing defines the bore. Our machine does the rest. We machine the 22 Type round bore spring collet chuck to your exact dimensions, then verify every critical diameter before shipment. No
Your drawing defines the bore. Our machine does the rest. We machine the 22 Type round bore spring collet chuck to your exact dimensions, then verify every critical diameter before shipment. No guesswork, no rework on your side.
We are a precision manufacturing factory in Dongguan, China, with 20 years of CNC turning, milling, and grinding experience. Your custom CNC collet chuck is made in China, but it meets ISO 9001 and your inspection standards.
| Parameter | Value |
|---|---|
| Type | 22 Type round bore spring collet chuck |
| Bore diameter range | Ø3 mm to Ø20 mm (custom per drawing) |
| Outer diameter | Ø22 mm standard, up to Ø30 mm on request |
| Length | 40 mm to 80 mm, per drawing |
| Material options | 65Mn, 60Si2MnA, 20CrMnTi, SUS420 |
| Hardness | HRC 45–52 (through-hardened or case-hardened) |
| Tolerance | ±0.005 mm on bore, ±0.01 mm on slot width |
| Concentricity | ≤0.008 mm TIR |
| Surface finish | Ra 0.4 µm bore, Ra 0.8 µm OD, no burrs |
| Slot width | 0.3 mm to 1.5 mm, laser-cut or wire-cut |
| Heat treatment | Quench + temper, or carburizing per spec |
| Inspection | 100% dimensional check, CMM report per batch |
| Batch size | 1 to 10,000 pieces, no MOQ |
| Lead time | 7 days for stock sizes, 12–15 days for custom |
We use CNC Swiss lathes and wire-cut EDM for slotting. Grinding is done on cylindrical and internal grinders. Each chuck is individually serialized for traceability.
1. Batch-traceable quality. Every batch gets a unique lot number. We record material heat number, heat treatment parameters, and final inspection data. If a problem appears in your production, you can trace it back to our furnace and grinding wheel. That is real precision manufacturing, not just a certificate.
2. Inspection report per batch. You receive a dimensional report with actual measured values for bore, taper, slot width, and concentricity. We do not send a generic "passed" sheet. You see the numbers. If you need a full CMM report or material cert, we include it at no extra cost.
3. One factory for CNC + stamping + springs + heat sinks. Your collet chuck is not an isolated part. Many buyers also need the spring inside the chuck, a stamped retainer ring, or a heat sink for the spindle motor. We make all of them under one roof. One purchase order, one quality system, one shipping point. Fewer suppliers, fewer delays.
The 22 Type round bore spring collet chuck is common in automatic lathes and CNC turning centers. It grips round bar stock from Ø3 mm to Ø20 mm. Typical applications include:
The round bore design gives even clamping force around the full circumference. That reduces bar pushback and improves concentricity for long, thin parts. If you machine parts with tight runout requirements, this is the collet you want.
Looking for a different part? We also machine Custom CNC Collet Chuck 40 Type Auto Lathe Parts Made in China in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We accept one-piece orders for custom CNC collet chucks. Prototype quantities are welcome. The unit price is higher for one piece, but you get the same tolerance and inspection quality.
Q: How do you guarantee tolerance and quality? A: We grind the bore and taper on dedicated internal grinders. Every chuck is checked with a bore gauge and a taper ring. We send a dimensional report with your shipment. If any dimension is out of spec, we replace it at no cost.
Q: What is your lead time? A: Standard 22 Type collets ship in 7 days. Custom bore sizes or special materials take 12–15 days. For urgent breakdowns, we can rush a single piece in 3 days at a 30% surcharge.
Q: Do you provide material certificates? A: Yes. We provide mill certificates for the raw material, heat treatment reports, and hardness test results. All documents are in English and stamped by our QC department.
Email your PDF or STEP file to sc@bquq.com. Include the bore diameter, outer diameter, length, and material if you have a preference. If you only have a worn sample, send it by courier — we will measure and reverse-engineer it.
You will receive a firm quote within 12 hours. No vague estimates, no hidden tooling charges. The quote includes unit price, lead time, and shipping cost to your port.
Prefer to talk? WhatsApp us at +86 13713157787. We answer within one business hour, China time (UTC+8).
Your custom CNC collet chuck, made in China, machined to your drawing, verified before shipment. Send the drawing today.
| 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 |
