For demanding industrial applications that require exceptional durability and dimensional stability, our precision-engineered punches are the definitive solution. Engineered for high-volume production and intricate forming tasks, these components deliver unparalleled performance in stamping, blanking, and piercing operations. The core of their reliability lies in the premium High Precision H40S Tungsten Carbide Punches. This specific grade of tungsten carbide offers an optimal balance between extreme hardness and exceptional transverse rupture strength, significantly outperforming traditional tool steel. Our manufacturing process ensures each punch maintains tight tolerances and a flawless surface finish, directly contributing to superior part quality, extended tool life, and reduced machine downtime. Whether you are setting up a new die or replacing worn components, our comprehensive range of Precision H40S Carbide Die Punches is designed to meet exact specifications for head configuration, shank diameter, and overall length. For applications demanding the ultimate in wear resistance and precision alignment, our H40S Tungsten Carbide Precision Punch Pins provide the rigidity and longevity needed for the most challenging materials, including high-strength steels, abrasive composites, and non-ferrous alloys.
The H40S Carbide Precision Stamping Punches are characterized by a set of rigorous technical parameters that define their capability and application scope. The material composition is critical, utilizing a tungsten carbide grade (H40S) specifically formulated for punch and die applications. This grade typically exhibits a hardness range of 89.5 to 90.5 HRA (Rockwell A Scale), providing exceptional resistance to deformation and abrasive wear. The transverse rupture strength exceeds 3500 N/mm², ensuring the punches can withstand high shock loads without fracturing. Standard dimensional tolerances for the working body are held within ±0.002mm, guaranteeing consistent performance and hole quality. A key feature is the superior surface finish, often achieving Ra 0.2µm or better, which minimizes friction and galling during the punching process. Available in a variety of standard and custom configurations, the punches can be supplied with different head styles (e.g., ball, flat, oval) and shank types to fit most press and die set standards. For detailed selection, refer to the following specifications.
| Shank Diameter (mm) | Working Diameter Range (mm) | Standard Overall Length (mm) | Recommended Fit (H7) |
|---|---|---|---|
| 3.00 | 0.50 - 2.00 | 40.0, 50.0, 60.0 | +0.010 / 0 |
| 6.00 | 1.00 - 5.00 | 50.0, 70.0, 80.0 | +0.012 / 0 |
| 8.00 | 2.00 - 7.00 | 60.0, 80.0, 100.0 | +0.015 / 0 |
| 10.00 | 3.00 - 9.00 | 70.0, 90.0, 120.0 | +0.015 / 0 |
| 12.00 | 5.00 - 11.00 | 80.0, 100.0, 150.0 | +0.018 / 0 |
