OpeningYour drawing defines the part. Our job is to make it exactly that way. We machine custom CNC collet chucks from your CAD file, verify every critical dimension, and ship only after inspection pa
Your drawing defines the part. Our job is to make it exactly that way. We machine custom CNC collet chucks from your CAD file, verify every critical dimension, and ship only after inspection passes.
At a glance: ±0.005 mm tolerance on thread pitch and bore, 7-10 day lead time for standard steel orders, no MOQ. One factory. One quality standard. Made in China, verified before shipment.
We build these collet chucks for repeatable clamping force and long service life. The table below shows our standard capabilities for rear thread display sizes 36, 46, and 52.
| Parameter | Value |
|---|---|
| Material | 20CrMnTi, 40Cr, 65Mn, or S136 (per your spec) |
| Hardness | 58-62 HRC (case-hardened) or 45-50 HRC (through-hardened) |
| Thread type | Metric, UNF, or custom rear thread (M36 x 1.5, M46 x 1.5, M52 x 1.5 typical) |
| Bore tolerance | H7 or better, verified with air gauge |
| Concentricity | ≤ 0.005 mm TIR between bore and rear thread |
| Surface finish | Ra 0.4 µm on bore, Ra 0.8 µm on outer diameter |
| Machining process | CNC turning, grinding, then thread milling or single-point threading |
| Heat treatment | Carburizing or induction hardening, followed by tempering |
| Inspection | 100% dimensional check, CMM report on request |
| Batch size | 1 piece to 10,000 pieces, no MOQ |
| Lead time | 7 days for prototype, 15 days for production runs |
We use CNC lathes with live tooling for the rear thread and bore in one setup. This reduces runout. For high-volume orders, we move to automatic lathes. Every part gets deburred and cleaned before packaging.
Batch-traceable quality. Each heat lot gets a unique code. We record material certs, machining parameters, and inspection results against that code. If you need to trace a part back to its raw bar stock, we can do it in minutes.
Inspection report per batch. You do not have to trust us blindly. Every batch ships with a dimensional report. We measure thread pitch, major diameter, bore size, and concentricity. The report lists actual values, not just pass/fail. Send us your drawing, and we will tell you which dimensions we will verify before shipment.
One factory for CNC, stamping, springs, and heat sinks. Your assembly may need more than just a collet chuck. We run four production lines under one roof. You send us the full BOM. We coordinate the machining, stamping, and spring manufacturing internally. Fewer suppliers means fewer tolerance mismatches and faster lead times.
Custom CNC collet chucks with rear threads are not shelf items. They go into machines where standard chucks do not fit.
Looking for a different part? We also machine Custom CNC Collet Chuck 55 Type Round Bore Auto Lathe Parts in the same Dongguan factory.
What is your MOQ? Zero. We machine one piece if that is what you need. Prototypes and spares are common orders. Production pricing starts at 50 pieces, but we will quote any quantity.
How do you guarantee tolerance and quality? We inspect every part, not just a sample. For thread pitch and bore, we use calibrated gauges and a CMM. The inspection report ships with your order. If any dimension is out of spec, we rework or replace the part at our cost.
What is your lead time for a custom rear thread collet chuck? Standard steel materials: 7 days for one to five pieces. Production runs of 100 or more: 15 days. If you need faster, tell us at the quote stage. We can prioritize your order for a small surcharge.
Do you provide material certificates? Yes. We supply mill certificates for the raw material and heat treatment reports. For aerospace or medical applications, we can provide full traceability documentation. Just specify the requirement when you send your drawing.
Stop guessing if a local shop can hold your tolerances. Send us your drawing, and we will give you a firm quote within 12 hours. We will confirm material, heat treatment, and inspection points before you commit.
Email your PDF or STEP file to sc@bquq.com. Or message us on WhatsApp at +86 13713157787. We reply in English, and we respond to every inquiry within one business day.
Precision manufacturing is our only business. Custom CNC collet chuck, made in China, no MOQ. Send the drawing. Get the quote.
| 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 |
