OpeningThis is a closeup of a 46-type collet chuck body, machined for an auto lathe spindle. The taper slot is cut to your exact drawing. We do not stock generic blanks. Every unit is made from your C
This is a closeup of a 46-type collet chuck body, machined for an auto lathe spindle. The taper slot is cut to your exact drawing. We do not stock generic blanks. Every unit is made from your CAD file, verified with a CMM before shipment.
At a glance: Tolerance ±0.005 mm on the taper angle, surface finish Ra 0.4, lead time 15 working days, no MOQ. One part or one thousand, same process control.
You send the drawing. We machine the collet. You receive a part that seats true on the spindle nose and grips the bar stock without runout.
| Parameter | Value |
|---|---|
| Material | 20CrMnTi (case-hardened), 42CrMo, or 9Cr18 (stainless) |
| Hardness | 58–62 HRC (case depth 0.8–1.2 mm) |
| Taper angle tolerance | ±0.005 mm (measured on CMM) |
| Concentricity (ID to taper) | ≤0.005 mm TIR |
| Surface finish | Ra 0.4 on taper, Ra 0.8 on slots |
| Slot width tolerance | ±0.01 mm |
| Key process | CNC turning, CNC milling, wire EDM for slot relief |
| Heat treatment | Vacuum carburizing + gas quenching |
| Inspection | 100% dimensional check, CMM report per batch |
| Batch size | 1–500 pcs, no MOQ |
| Lead time | 15 working days for first article, 10 days for repeat |
| Country of origin | Made in China, Dongguan factory |
The 46-type collet is a standard auto lathe size, but the taper slot geometry is not standard. That slot controls the collapse and grip force. We cut it with a wire EDM after heat treatment, so the edges stay sharp and the slot width holds even after hardening.
1. Batch-traceable quality. Each heat lot gets a unique number. We record material batch, machine operator, heat treatment furnace log, and CMM results. If a part fails in your spindle, we trace it back to the exact ingot. No guessing.
2. Inspection report per batch. You get a dimensional report with every shipment. Not a generic certificate—actual measured values for taper angle, slot width, concentricity, and hardness. We sign it. We stand behind it.
3. One factory for CNC, stamping, springs, and heat sinks. Your collet chuck might need a spring for the release mechanism, a stamped retainer plate, or a heat sink for a high-speed spindle motor. We make all of them under one roof. One purchase order, one quality system, one shipping address. Fewer suppliers, fewer delays.
A 46-type collet chuck with a precision taper slot is not a shelf item. It goes into:
In every case, the slot is the failure point. A worn slot means grip loss, part slippage, and scrap. Our slot is cut after hardening, so the grain structure is not disturbed. It stays sharp longer.
Looking for a different part? We also machine Custom CNC Collet Chuck 46 Type Quenched Collet | Precision Made in China in the same Dongguan factory.
Q: What is the MOQ? No MOQ. We run one piece for prototype validation, or 500 pieces for production. The per-piece price drops at 50 and 200 pieces, but the quality process is identical.
Q: How do you guarantee the taper tolerance? We machine the taper on a CNC lathe with a live tooling turret, then measure it on a CMM with a 0.0001 mm resolution probe. If the angle is off by more than 0.005 mm, the part is scrapped. We do not blend or hand-fit.
Q: What is the standard lead time? First article: 15 working days after drawing approval. Repeat orders: 10 working days. For urgent prototypes, we can do 7 days with a 20% surcharge. We do not quote faster than we can deliver.
Q: Do you provide material certificates? Yes. Each batch ships with a mill certificate for the raw material, a heat treatment report, and our CMM inspection report. If you need third-party testing (SGS or TUV), we arrange it at cost.
Stop guessing whether a stock collet will fit your spindle. Send us your drawing and we will quote the exact part.
Firm quote in 12 hours. We reply with a price, lead time, and a technical review of any critical tolerances. If we see a problem, we tell you before you order.
Email: sc@bquq.com WhatsApp: +86 13713157787
Precision manufacturing is not a slogan. It is the CMM report we send with every batch. Send your drawing and see the difference.
| 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 |
