OpeningYour tool holder must grip true, run concentric, and survive high-speed machining. We machine your HSK63A ER collet chuck to your exact drawing, not a stock approximation. Every unit is verifie
Your tool holder must grip true, run concentric, and survive high-speed machining. We machine your HSK63A ER collet chuck to your exact drawing, not a stock approximation. Every unit is verified for taper contact and runout before it leaves our floor.
At a glance: Runout within 0.005 mm TIR at the nose. Taper grade AT3. Lead time 15-20 working days. No MOQ. Made in China.
We run a dedicated CNC turning and milling cell for collet chucks. Raw material is 20CrMnTi or 42CrMo, hardened and ground. We do not outsource critical grinding steps.
| Parameter | Value |
|---|---|
| Material | 20CrMnTi (case-hardened) or 42CrMo (through-hardened) |
| Hardness | 58-62 HRC (core), 60-63 HRC (case) |
| Taper accuracy | AT3 per DIN 69893 (HSK) |
| Runout (TIR) | ≤ 0.005 mm at nose, ≤ 0.010 mm at 4×D |
| Surface finish | Ra 0.4 µm on taper, Ra 0.8 µm on body |
| Balance | G2.5 @ 25,000 rpm (optional G1.0) |
| Threads | Ground, class 6H |
| Coating | Optional TiN, TiAlN, or black oxide |
| Process | CNC turning, 5-axis milling, cylindrical grinding, balancing |
| Inspection | 100% taper gauge check, CMM report per batch |
| Batch size | 1 piece to 5,000 pieces |
| Lead time | 15 days (prototype), 20 days (production) |
We hold HSK63A taper angle to ±0.001 mm. The ER collet seat is ground in the same setup as the taper to eliminate stack-up error. Each chuck is serialized for batch traceability.
1. Batch-traceable quality, not just a QC stamp. Every heat lot and machining batch gets a unique code. We record material certs, grinding wheel specs, and final inspection data against that code. If you have a problem on machine #4 six months from now, we can pull the exact process record for that chuck.
2. Inspection report per batch, not per sample. You get a dimensional report for every part in your order, not just the first article. CMM data, taper contact percentage, and runout values are listed per serial number. This is standard, not a paid extra.
3. One factory for CNC, stamping, springs, and heat sinks. Your collet chuck might need a spring collet, a stamped retention knob, or a heat sink adapter. We make all of them under one roof. You send one drawing package, get one quote, one set of logistics, and one responsible party if anything is wrong.
Our custom CNC collet chuck tool holders are used in high-speed milling and drilling centers where tool change accuracy matters.
What is your MOQ? No MOQ. We machine one prototype for you to test, or 5,000 pieces for production. The per-piece price drops with quantity, but we do not force you to buy extras.
How do you guarantee tolerance and quality? We inspect the taper with an air gauge and a calibrated master. Runout is checked on a precision spindle with a 0.001 mm indicator. A CMM report is included with every batch. If any dimension is out of spec, we rework or scrap at our cost, not yours.
What is the lead time for a custom design? 15 working days for a prototype after drawing approval. Production batches of 100 pieces take 20 working days. If you need faster, we can split the order and ship the first 10 pieces in 7 days.
Do you provide material certificates and traceability? Yes. We supply mill certificates for the raw material, heat treatment reports, and a batch traceability code printed on the packaging. For aerospace or medical orders, we can provide full MTR documentation and retained samples.
Send us your 2D drawing or 3D model. We will check the taper spec, runout requirements, and material grade. You will receive a firm quote within 12 hours, including unit price, tooling cost (if any), and confirmed lead time.
Email your drawing to sc@bquq.com or message us on WhatsApp at +86 13713157787. We reply within one business hour during China working time (GMT+8). No MOQ, no obligation, just a precise quote for your custom CNC collet chuck.
| 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 |
