OpeningSend us your drawing. We machine the collet chuck to your exact dimensions. Every unit is verified before shipment. No surprises.This is a 25 Type round bore extended collet chuck for auto lath
Send us your drawing. We machine the collet chuck to your exact dimensions. Every unit is verified before shipment. No surprises.
This is a 25 Type round bore extended collet chuck for auto lathes. It is built for high-speed, high-repeatability workholding. We hold concentricity to 0.005 mm TIR. Surface finish down to Ra 0.4.
| Parameter | Value |
|---|---|
| Type | 25 Type round bore extended collet chuck |
| Bore diameter range | Ø3 mm – Ø25 mm (custom per drawing) |
| Collet taper angle | 30° (standard), custom available |
| Concentricity (TIR) | ≤0.005 mm |
| Surface finish | Ra 0.4 – 0.8 µm on bore and taper |
| Hardness | Case-hardened HRC 58–62, depth 0.8–1.2 mm |
| Material options | 20CrMnTi, 8620, 4140, or per your spec |
| Machining process | CNC turning, internal grinding, OD grinding |
| Inspection | 100% dimensional check, CMM report per batch |
| Batch size | 1 – 10,000 pcs |
| Lead time | 15 days for prototypes, 20 days for production |
| Coating | Plain, black oxide, or TiN per request |
We use CNC lathes and cylindrical grinders. Internal bore and taper are ground in one setup. This ensures geometric consistency across the batch.
1. Batch-traceable quality. Each batch gets a unique number. We record material heat number, machine used, operator, and inspection results. If you have a problem on your line, we trace it to the exact shift. No guesswork.
2. Inspection report per batch. You get a dimensional report with every shipment. It lists bore diameter, taper angle, TIR, hardness, and surface finish. The report matches your drawing, point by point. Your IQC can verify in minutes.
3. One factory for CNC + stamping + springs + heat sinks. Your collet chuck is not an isolated part. You may need a spring collet, a stamped retainer, or a heat sink for the spindle drive. We make all of them under one roof. Fewer suppliers, fewer logistics headaches, one quality standard.
This collet chuck is for automatic lathes, especially Swiss-type and sliding-headstock machines. Common applications:
The extended bore design supports longer workpieces without vibration. That is why it is chosen for parts with length-to-diameter ratios above 3:1.
Looking for a different part? We also machine Custom CNC Collet Chuck with Spanner Wrench Set | Precision Manufacturing in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We accept one piece for prototype validation. Production orders of 100–5,000 pcs are typical. You pay the same per-unit attention either way.
Q: How do you guarantee tolerance and quality? A: We grind the bore and taper in one setup. Each piece is measured on a CMM and a profilometer. We send you the inspection report before shipment. If a dimension is out of spec, we reject it, not ship it.
Q: What is your lead time for custom CNC collet chucks? A: Prototypes: 15 days after drawing approval. Production: 20 days. For urgent orders, we can split the batch and ship the first 20% in 10 days. We quote the exact date with your price.
Q: Can you provide material certificates? A: Yes. We supply mill certificates for the raw steel, heat treatment reports, and hardness test results. All documents are in English and traceable to the batch number.
Get a firm quote in 12 hours. We review your drawing, confirm material and tolerance, and reply with price and lead time. No obligation.
Email your PDF or STEP file to sc@bquq.com WhatsApp: +86 13713157787
We are a precision manufacturing factory in Dongguan, China, with 20 years in CNC machining, stamping, springs, and heat sinks. Your custom CNC collet chuck is made to print, verified before shipment, and ready for your line.
| 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 |
