OpeningYour drawing defines the part. We machine it to that drawing, verify every critical dimension, and ship only after passing inspection.This is a 52-type collet chuck for auto
Precision CNC Collet Chuck 52 Type Quenched Dark, Custom Made in China
OpeningYour drawing defines the part. We machine it to that drawing, verify every critical dimension, and ship only after passing inspection.This is a 52-type collet chuck for automatic lathes. It is
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
Your drawing defines the part. We machine it to that drawing, verify every critical dimension, and ship only after passing inspection.
This is a 52-type collet chuck for automatic lathes. It is quenched and darkened for wear resistance and corrosion control. We make it to your exact bore profile, thread pitch, and slot geometry.
Tolerance: ±0.005 mm on bore and slot widths
Lead time: 10–15 working days for standard batches
No MOQ: order 1 piece or 10,000 pieces
Material: 20CrMnTi or 40Cr, hardened to HRC 58–62
Finish: quenched dark (black oxide) or as specified
We are a precision manufacturing factory in Dongguan, China, with 20 years of experience. You send the drawing. We return a firm quote and a part that fits your spindle.
Specifications
Parameter
Value
Available sizes
52 type (for auto lathe spindles up to Ø52 mm bar stock)
Materials
20CrMnTi, 40Cr, 9SiCr, or equivalent alloy steel
Hardness
HRC 58–62 after quenching and tempering
Surface finish
Quenched dark (black oxide), optional: phosphate, nickel plating
Tolerance
±0.005 mm on bore, ±0.01 mm on outer diameter, ±0.02 mm on length
Concentricity
≤0.005 mm TIR between bore and outer diameter
Slot width
±0.01 mm, burr-free edges
Threads
M16×1.5 to M42×1.5, class 6H internal threads
Keyway / drive slots
Per drawing, broached or wire-cut
Machining process
CNC turning, CNC milling, wire EDM for slots, internal grinding for bore
Batch size
1 to 50,000 pieces, no MOQ
Inspection
100% dimensional check on critical features, CMM report per batch
Lead time
10–15 working days for standard sizes, 20 days for custom profiles
Packaging
Anti-rust oil, individual wrapping, export wooden case
Three reasons buyers send us their drawings
1. Batch-traceable quality.
Every collet chuck gets a unique batch number. We record heat treatment curves, grinding wheel specs, and final inspection data. If a problem appears in your production, we trace it back to the exact heat lot and machine operator.
2. Inspection report per batch.
You receive a dimensional report with actual measured values, not just a pass/fail stamp. We measure bore diameter, concentricity, slot width, and hardness. The report is signed by our QC engineer and sent with the shipment.
3. One factory for CNC + stamping + springs + heat sinks.
Your collet chuck is not the only part you need. We also run CNC machining, metal stamping, spring coiling, and heat sink fabrication lines. Send us a full assembly drawing. We coordinate all processes under one roof, one quality system, one shipping date.
Where these parts are used
Automatic lathes (Swiss-type and cam-type) – for feeding and clamping bar stock up to Ø52 mm in high-volume turning operations.
Precision screw machining – collet chucks hold hex, square, and round stock for fasteners, fittings, and valve components.
Medical device manufacturing – small-diameter titanium and stainless parts require repeatable clamping force and zero runout.
Automotive fuel injector components – high-volume production of nozzles and needles demands a chuck that holds concentricity over millions of cycles.
Electrical connector pins – brass and copper pins are machined at high spindle speeds; a hardened, dark-finished chuck resists wear and galling.
Hydraulic fittings – the quenched surface reduces friction and prevents seizing when clamping steel and stainless blanks.
Q: Is there a minimum order quantity?
A: No. We accept single-piece prototypes and full production runs. The price per piece drops with quantity, but we do not force you to over-order.
Q: What tolerance and quality can you guarantee?
A: Standard tolerance is ±0.005 mm on bore and slot widths, with concentricity ≤0.005 mm TIR. We provide a CMM inspection report for every batch. If we miss a dimension, we remake the part at no cost.
Q: What is the lead time for a custom CNC collet chuck?
A: For standard 52-type with your bore and thread spec, 10–15 working days. For fully custom profiles with special slots or coatings, allow 20 working days. We can expedite to 7 days for urgent orders, subject to material availability.
Q: Do you provide material certificates and heat treatment reports?
A: Yes. Each batch ships with a mill certificate for the raw material, a hardness test report, and a heat treatment curve. We can also provide third-party testing (SGS, BV) at your request.
Send your drawing
We respond with a firm quote within 12 hours, including unit price, tooling cost (if any), and delivery date.
Email your drawing (PDF, STEP, or IGES) to sc@bquq.com
Or message us on WhatsApp: +86 13713157787
We speak engineer. We do not pad quotes. You send the drawing, we send the part.
