OpeningYour drawing defines the part. We machine it.Every 5C collet chuck we ship is made to your exact print. We verify critical dimensions before the batch leaves Dongguan. No su
Custom CNC Collet Chuck 5C Precision Lathe Tooling Made in China
OpeningYour drawing defines the part. We machine it.Every 5C collet chuck we ship is made to your exact print. We verify critical dimensions before the batch leaves Dongguan. No surprises at your inco
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
Every 5C collet chuck we ship is made to your exact print. We verify critical dimensions before the batch leaves Dongguan. No surprises at your incoming inspection.
Tolerance: ±0.005 mm on bore and taper
Lead time: 7–12 working days for standard batches
No MOQ: order one piece or one thousand
Material: AISI 4140, 8620, or 52100 steel, hardened to 58–62 HRC
We are a precision manufacturing factory with 20 years of CNC machining, stamping, springs, and heat sink lines under one roof. Your custom CNC collet chuck is made by engineers, not just operators.
Specifications
Parameter
Value
Material options
AISI 4140, 8620, 52100, 12L14, stainless 303/304
Hardness
58–62 HRC (through-hardened) or case-hardened 0.3–0.5 mm depth
Tolerance
±0.005 mm on bore, taper, and thread pitch
Surface finish
Ra 0.4 µm on locating surfaces, Ra 0.8 µm elsewhere
Taper accuracy
AT3 or better per ISO 1947
Thread class
2A or 3A per ANSI B1.1
Machining process
CNC turning, CNC grinding, wire EDM for slots
Inspection
100% critical dimensions, CMM report per batch
Batch size
1–5000 pieces, no MOQ
Lead time
7 days for prototypes, 12 days for production runs
Packaging
Individual foam wrap, export carton, or custom tray
We grind the 5C taper on a dedicated cylindrical grinder. Bore concentricity is held to 0.005 mm TIR. Every chuck is deburred and passivated to prevent rust during transit.
Three reasons buyers send us their drawings
1. Batch-traceable quality.
Each heat lot gets a unique code. We record material cert, machining parameters, and inspection results against that code. If a problem appears in your line, we trace it back to the exact batch in minutes. No guesswork.
2. Inspection report per batch.
You get a dimensional report with every shipment. It lists all critical features: taper angle, bore diameter, thread pitch, hardness, and surface finish. Our QC team uses a CMM and hardness tester calibrated monthly. If a dimension is out, we catch it before packing, not after you receive it.
3. One factory for CNC + stamping + springs + heat sinks.
Your custom CNC collet chuck is often part of a larger assembly. We also make the springs, stamped retainers, and heat sinks that go around it. One purchase order, one quality system, one shipping point. Fewer suppliers, fewer delays.
Where these parts are used
5C collet chucks are not just for lathes. Our customers use them in:
Swiss-type CNC lathes for bar stock up to 26 mm diameter
Manual lathes with a 5C collet closer, replacing 3-jaw chucks for thin-wall parts
Rotary transfer machines where quick changeover matters
Grinding fixtures for holding hardened blanks on cylindrical grinders
Indexing heads on milling machines for hex or square stock
Automotive valve stems and hydraulic fittings, where concentricity under 0.01 mm is mandatory
Aerospace fasteners requiring full material traceability
In every case, the chuck must grip without marring the part and release without sticking. Our hardened and ground bore does exactly that.
Q: What is your MOQ?
A: No MOQ. We make one prototype or a thousand production pieces. Tooling cost is amortized into the unit price for repeat orders.
Q: How do you guarantee tolerance and quality?
A: We grind the taper and bore after heat treatment. Every batch gets a CMM inspection report. If a part is out of spec, we rework or scrap it before shipment, at our cost.
Q: What is your lead time for a custom CNC collet chuck?
A: 7 working days for prototypes, 12 working days for production runs. For urgent orders, we can split the batch and ship the first 20 pieces in 3 days.
Q: Can you provide material certificates?
A: Yes. We supply mill certificates for every heat, plus our own hardness and dimensional reports. All documents are in English and PDF format.
Send your drawing
Send us your 2D drawing or 3D model. We will quote firm within 12 hours.
Email: sc@bquq.com
WhatsApp: +86 13713157787
We are a precision manufacturing factory in Dongguan, China. Custom CNC collet chuck, made in China, with no MOQ and verified quality. Your drawing is the starting point. We do the rest.
