## Opening
Your drawing defines the part. We machine it. We verify it. Then we ship it.This is a heavy duty TG150 collet chuck built for high torque and repeatable gripping. We make it to your exact
## Opening Your drawing defines the part. We machine it. We verify it. Then we ship it.
This is a heavy duty TG150 collet chuck built for high torque and repeatable gripping. We make it to your exact print, not from a stock catalog. Every unit is inspected before it leaves our floor in Dongguan.
## Specifications We run a dedicated CNC turning and grinding cell for collet chucks. No shared lines, no cross-contamination of chips or heat treatment batches.
| Parameter | Value |
|---|---|
| Material | 20CrMnTi, 8620, or per your spec |
| Hardness | Case-hardened 58–62 HRC, core 30–40 HRC |
| Tolerance | 0.005 mm on bore and taper |
| Runout | ≤ 0.008 mm TIR at nose, ≤ 0.005 mm at taper |
| Surface finish | Ra 0.4 µm on taper, Ra 0.8 µm on OD |
| Threads | Ground, class 2B or better |
| Keyway/slots | Broached or wire-cut, ±0.01 mm |
| Balance | G2.5 at 20,000 RPM (if requested) |
| Process | CNC turning → heat treat → OD/ID grinding → final lapping |
| Inspection | 100% dimensional check, CMM report per batch |
| Batch size | 1–5,000 pcs, no MOQ |
| Lead time | 15 days for prototype, 20 days for production |
We use Mitsubishi and Mazak CNC lathes, followed by Studer or equivalent cylindrical grinders. For internal tapers, we use a dedicated jig grinder with a 0.002 mm resolution. Heat treatment is done in a vacuum furnace with full time-temperature charts.
## Three reasons buyers send us their drawings 1. Batch-traceable quality Each batch gets a unique heat number and job card. We track material from incoming bar stock to final grind. If you need to trace a part back to its melt, we can do it in minutes.
2. Inspection report per batch You get a full dimensional report with every shipment. This includes CMM data on taper angle, bore diameter, runout, and hardness. No surprises at your incoming inspection.
3. One factory for CNC + stamping + spring + heatsink You send us a drawing for a collet chuck. We machine it. But if your assembly also needs a stamped retainer, a spring collet, or a heatsink for the spindle motor, we make those too. One purchase order, one shipping point, one quality system.
## Where these parts are used TG150 collet chucks are not for light duty. They are used where a standard ER collet cannot hold torque or rigidity.
In each case, the chuck must hold the tool shank with zero play. Our ground taper and hardened body deliver that.
## Questions buyers ask before ordering Q: What is your MOQ? A: No MOQ. We make one piece for prototype validation or 5,000 pieces for production. Tooling cost is amortized into the unit price, not charged upfront.
Q: How do you control tolerance and quality? A: We grind all critical surfaces after heat treatment. Taper angle is checked with a precision air gauge. Runout is measured on a test mandrel. Every part gets a CMM report. We hold 0.005 mm on bore and taper, and 0.008 mm TIR at the nose.
Q: What is your lead time for custom CNC collet chucks? A: 15 working days for prototypes, 20 working days for production batches. If you need faster, we can split the batch or use expedited heat treatment. We will tell you the exact date before you place the order.
Q: Can you provide material certificates? A: Yes. We supply mill certificates for the raw material, heat treatment reports, and hardness test results. All are traceable to the batch number on your parts.
## Send your drawing Send us your PDF or STEP file. We will review the geometry, material, and tolerance. You get a firm quote with a delivery date in 12 hours.
No MOQ. Precision manufacturing, made in China, verified before shipment.
Email: sc@bquq.com WhatsApp: +86 13713157787
We are ready to quote your custom CNC collet chuck today.
Looking for a different part? We also machine Custom CNC Machined ER16 Collet Chuck & Nut | Precision Made in China in the same Dongguan factory.
| 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 |
