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. E
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
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Send us your drawing / quantity / material — reply within 24h.
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.
Specifications
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)
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.
Three reasons buyers send us their drawings
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.
Where these parts are used
Our custom CNC collet chuck tool holders are used in high-speed milling and drilling centers where tool change accuracy matters.
Automotive powertrain lines: Machining aluminum valve bodies and cast iron gearbox housings. Cycle times under 30 seconds. Tool holders must repeat within 5 microns across thousands of tool changes.
Aerospace structural parts: Five-axis machining of titanium and Inconel brackets. The HSK63A hollow taper provides rigid clamping under heavy radial loads. Our G2.5 balance spec prevents chatter at 20,000 rpm.
Medical implant manufacturing: Small-diameter ER11 and ER16 collets for drilling and reaming titanium bone screws. Runout control is critical to tool life and surface finish.
Mold and die shops: Finishing hardened P20 and H13 steel. Our AT3 taper and ground threads reduce vibration, giving better surface finish and longer insert life.
General contract manufacturing: Any shop running a Brother, Fanuc, or Mazak with HSK63A spindles that needs a non-standard gauge length or custom flange geometry.
Questions buyers ask before ordering
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 your drawing
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.
