OpeningYour ER11 collet chuck starts as a drawing, not a stock item. We machine it to your exact dimensions, verify it on a CMM, and ship it with a report. If it doesn't match your print, you don't pa
Your ER11 collet chuck starts as a drawing, not a stock item. We machine it to your exact dimensions, verify it on a CMM, and ship it with a report. If it doesn't match your print, you don't pay.
At a glance: Runout ≤ 0.005 mm TIR, hardness 58–62 HRC, lead time 7–12 days, no MOQ.
| Parameter | Value |
|---|---|
| Material options | 20CrMnTi, 40Cr, 65Mn, or customer-specified steel |
| Heat treatment | Carburized or induction hardened, 58–62 HRC |
| Surface finish | Ra 0.4 μm on taper, Ra 0.8 μm on OD |
| Runout (TIR) | ≤ 0.005 mm at nose, ≤ 0.01 mm at 50 mm from nose |
| Taper accuracy | AT3 per DIN 6499 / ISO 15488 |
| Thread form | ER11 collet nut thread, M14 x 0.75 or per drawing |
| Keyed slots | Broached or wire-cut, ±0.02 mm |
| Coating option | Black oxide, TiN, or no coating |
| Inspection | 100% dimensional check, CMM report included |
| Batch size | 1 piece to 10,000 pieces |
| Lead time | 7 days for prototypes, 12 days for production |
| MOQ | None |
Machining is done on 5-axis CNC lathes and machining centers. We hold tolerances down to ±0.005 mm where your print requires it. Each part is deburred, cleaned, and rust-protected before packing.
1. Batch-traceable quality. Every heat number and batch is logged. If a material issue appears six months later, we trace it to the exact melt. You get a part number, not a guess.
2. Inspection report per batch. You receive a dimensional report with actual measured values, not just a pass/fail stamp. We measure taper angle, thread pitch, and runout on every piece. No random sampling.
3. One factory for CNC + stamping + spring + heatsink. Your collet chuck might need a spring for the collet retention or a stamped washer for the nut. We make all of it under one roof. Fewer vendors, fewer handoffs, fewer tolerance stack-ups.
ER11 collet chucks are the workhorse for small-diameter toolholding. Common applications include:
If your machine uses ER11 collets, you need a chuck that seats the collet perfectly. A poor taper means runout, and runout means broken tools and bad finishes.
Looking for a different part? We also machine Precision CNC Collet Chuck Tool Holder | Custom BT30 ER Made in China in the same Dongguan factory.
Q: What is your minimum order quantity? A: No MOQ. We make one prototype or ten thousand production parts. Prototype pricing is slightly higher per piece, but production pricing drops at 100, 500, and 1,000 pieces.
Q: How do you guarantee tolerance and quality? A: We inspect 100% of parts. Runout is measured on a precision spindle with a dial indicator. Taper angle is checked with a calibrated gauge. You get the CMM report with your shipment.
Q: What is your lead time? A: 7 days for prototypes, 12 days for production batches. If you need faster, we can split the batch and ship partial quantities. Air freight is available.
Q: Can you provide material certificates? A: Yes. We provide mill certificates for the raw material and heat treatment reports. Material grade is traceable to the original melt.
Send us your PDF, STEP, or IGES file. We will review the geometry, check for manufacturability, and send a firm quote within 12 hours. No hidden costs, no surprises.
Email: sc@bquq.com WhatsApp: +86 13713157787
Precision manufacturing made in China — with the paperwork to prove it.
| 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 |
