OpeningYour drawing defines the part. We machine it, verify it, and ship it. Every ER32 collet chuck is checked for runout and taper accuracy before it leaves our Dongguan factory.
OpeningYour drawing defines the part. We machine it, verify it, and ship it. Every ER32 collet chuck is checked for runout and taper accuracy before it leaves our Dongguan factory. No surprises.At a g
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
Your drawing defines the part. We machine it, verify it, and ship it. Every ER32 collet chuck is checked for runout and taper accuracy before it leaves our Dongguan factory. No surprises.
At a glance: ±0.005 mm concentricity on the taper, 0.008 mm TIR at the nose, 15-day standard lead time, no MOQ. Made in China with full material traceability.
CMM (Zeiss), Taylor Hobson roundness tester, hardness tester
Batch size
1 piece to 10,000 pieces accepted
Lead time
7 days for prototypes, 15 days for standard batches
Documentation
Material certs, inspection report per batch, dimensional report
We grind the taper after heat treatment. That is non-negotiable. It is the only way to hold the runout numbers above. Threads are cut, not rolled, for better concentricity on the collet nut.
Three Reasons Buyers Send Us Their Drawings
1. Batch-traceable quality. Every heat lot is tagged. Every part gets a unique serial number if you need it. We keep records for 10 years. If a problem shows up in your shop, we can trace it back to the exact batch, machine, and operator.
2. Inspection report per batch. You get a full dimensional report with each shipment. Not a generic certificate — actual measured values for taper angle, runout, hardness, and surface finish. We use a Zeiss CMM and a Taylor Hobson roundness tester. The report is signed by our QC lead and sent with the parts.
3. One factory for CNC + stamping + springs + heat sinks. Your collet chuck is not an isolated part. You may need a spring for the nut, a stamped retainer, or a heat sink for the spindle motor. We make all of them under one roof. Fewer suppliers, fewer logistics headaches, one responsible party.
Where These Parts Are Used
ER32 collet chucks are standard toolholders for CNC milling and drilling centers. They hold end mills, drill bits, and reamers from 2 mm to 20 mm shank diameter. Common applications include:
Automotive machining lines: holding HSS and carbide tools for engine blocks, transmission housings, and brake components.
Aerospace structural parts: where runout consistency directly affects hole position and surface finish on aluminum and titanium.
Die and mold shops: for finishing passes on hardened steel, where tool deflection must be minimized.
General job shops: quick tool changes on VMCs and HMCs, especially for small-batch production where flexibility matters.
Medical device manufacturing: precise drilling and reaming on stainless steel and cobalt-chrome implants.
The ER32 system is a global standard. If you are already using ER32 collets, our chuck will fit your existing nuts and wrenches. We also make the matching spanner wrench — flat or hook type, as per your drawing.
Q: What is your MOQ?
A: No MOQ. We accept single-piece orders for prototypes and small batches. The price per piece is higher for one-off parts, but the quality and inspection are identical to a 10,000-piece run.
Q: How do you guarantee tolerance and quality?
A: We grind the taper after heat treatment, not before. That is the critical step. We then measure every part with a CMM and a roundness tester. The inspection report is included with the shipment. If any dimension is out of spec, we remake the part at no cost.
Q: What is your lead time?
A: 7 days for prototypes (1–5 pieces). 15 days for standard batches up to 1,000 pieces. Larger orders are quoted individually. We can expedite for an additional fee if your line is down.
Q: Can you provide material certificates?
A: Yes. Every batch comes with a mill certificate for the raw material, plus our own hardness and chemical composition test results. We can also provide third-party inspection (SGS, TÜV) at your cost.
Send Your Drawing
Send us your drawing in PDF, STEP, or IGES format. We will review the material, tolerances, and quantity. You get a firm quote within 12 hours. No hidden costs, no vague promises.
Email: sc@bquq.com
WhatsApp: +86 13713157787
Precision manufacturing is our only business. Let us quote your custom CNC collet chuck today.
