Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
| Payment Terms | L/C,T/T |
| Supply Ability | 10000 pcs/month |
| Wear Rate | Less than 0.1 mm³/MJ |
| Features | Excellent Wear and Corrosion Resistance |
| Custom shapes | Available upon request |
| Feature | Enhanced Durability |
| Impact Resistance | Excellent |
| Magnetic Properties | Non-magnetic available |
| Melting Point | 2,870°C |
| Tensile Strength | 1,900 MPa |
| Carbide Processing | High Durability |
| Alloy Specification | YG6/YG8/YG10X/YG20C |
| Brand Name | Sanxin |
| Model Number | SX-2272 |
| Certification | ISO9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,T/T | Supply Ability | 10000 pcs/month |
| Wear Rate | Less than 0.1 mm³/MJ | Features | Excellent Wear and Corrosion Resistance |
| Custom shapes | Available upon request | Feature | Enhanced Durability |
| Impact Resistance | Excellent | Magnetic Properties | Non-magnetic available |
| Melting Point | 2,870°C | Tensile Strength | 1,900 MPa |
| Carbide Processing | High Durability | Alloy Specification | YG6/YG8/YG10X/YG20C |
| Brand Name | Sanxin | Model Number | SX-2272 |
| Certification | ISO9001 | Place of Origin | China |
This tungsten carbide (cemented carbide) micro precision punch features a body diameter of Φ 1.95 mm and tip radius of R0.2 mm. Designed for micro-hole blanking, precision step forming, and high-speed punching applications, it is ideal for progressive dies, high-speed stamping dies, and powder metallurgy molding tools requiring long service life and strict dimensional consistency.
Manufactured from ultra-fine grain tungsten carbide (WC grain size ≤ 0.5 μm) with 6%-10% cobalt binder. This material combination delivers high hardness (≥ 90.5 HRA) and high transverse rupture strength (≥ 3000 MPa). Compared to conventional high-speed steel punches (M2, ASP23), service life is 5-10 times longer, particularly when punching hard materials like stainless steel, silicon steel, and copper alloys.
| Industry | Specific Use |
|---|---|
| Electronic connectors | Terminal holes, guide pin holes |
| Precision stamping | Stainless steel shims, springs, lead frames |
| Powder metallurgy | Micro steps, bumps, cavity details |
| Medical devices | Micro-hole punching, guide tube forming |
| Automotive parts | Injector shims, sensor housing micro-holes |
| Parameter Category | Item | Standard / Range | Tolerance / Remark |
|---|---|---|---|
| Dimensional | Body diameter D | Φ1.95 mm | ±0.002 mm (±0.001 mm achievable) |
| Tip radius R | R0.2 mm | ±0.005 mm | |
| Overall length L | 30 - 80 mm (custom) | ±0.05 mm | |
| Entry chamfer (optional) | C0.1 - C0.3 | tip or back end | |
| Shank diameter (if shouldered) | per drawing, typical Φ3.0 / Φ4.0 | ±0.005 mm | |
| Material | Grade | YG6 / YG8 / YG10X / ultra-fine | selected for wear or toughness |
| WC grain size | 0.4 - 0.8 μm | ultra-fine grade | |
| Cobalt content | 6% / 8% / 10% | higher = tougher |
| Parameter | Tungsten Carbide Punch | HSS Punch (M2 / ASP23) | Carbide + Coated Punch |
|---|---|---|---|
| Hardness (HRA / HRC) | 90.5 HRA (~74 HRC) | 62-66 HRC | 90 HRA + coating |
| TRS (MPa) | 3000 - 3800 | 3500 - 4500 (tougher) | 2800 - 3500 |
| Wear resistance | ★★★★★ | ★★★ | ★★★★★ |
| Chipping resistance | ★★★★ (due to R0.2) | ★★★★★ | ★★★☆ |
| Suitable stamping speed | High speed (800+ spm) | Medium-high speed | High speed |
| Life vs. M2 | 5 - 10* | 1* | 6 - 12* |
| Relative cost | Medium-high | Low | High |
| Recommended use | High wear, micro holes, long life | General duty, easy change | Dry stamping, sticky materials |
Company Details
Business Type:
Manufacturer,Importer,Exporter,Seller,Other
Year Established:
2003
Total Annual:
8000000-10000000
Employee Number:
150~180
Ecer Certification：
Verified Supplier
Zhuzhou Sanxin Cemented Carbide Manufacturing Co.,Ltd is located in Zhuzhou, Hunan Province, which is known as the “Hometown of Cemented Carbide”. It is a national high-tech enterprise that has passed ISO9001:2015 international quality certification system, specializing in manufacturing,... Zhuzhou Sanxin Cemented Carbide Manufacturing Co.,Ltd is located in Zhuzhou, Hunan Province, which is known as the “Hometown of Cemented Carbide”. It is a national high-tech enterprise that has passed ISO9001:2015 international quality certification system, specializing in manufacturing,...
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