VINACNC - Expert in Bullet Head Steel Punch Pins for Progressive Dies and Vehicle Molds

In the mould and stamping industry, punch pins are a core component that determines the precision and efficiency of the production process. VINACNC is proud to supply high-quality bullet head steel punches with high hardness and tight tolerances, specifically designed for progressive metal stamping dies. We are committed to delivering high-quality, durable, and absolutely precise mould components, especially for the vehicle mold industry.

Technical Specifications, Materials, and Applications

• Materials: The products are crafted from high-quality tool steels, typically high-wear-resistant steel such as SKD-11, SKH51 or other materials as per customer requirements. These materials are known for their high hardness and excellent wear resistance after heat treatment.

• Technical Properties:

  • Shape: The punch pin has a distinctive bullet head design, which reduces friction during punching and allows for easy positioning, making it ideal for progressive dies.

  • Hardness: After heat treatment, the material achieves a stable hardness (typically HRC 58-62°), allowing the punch pin to withstand high pressure and friction during continuous operation.

  • Precision: The products are CNC machined with extremely tight diameter tolerances, ensuring a perfect fit with the die and helping to create parts with precise dimensions.

• Applications: Bullet head steel punches are indispensable components in progressive dies for cutting and punching holes in sheet metal. They are widely used in the manufacturing of vehicle parts, electronic device housings, and precision machinery.

Product Advantages

• Superior Durability: With high-quality steel materials, the components resist repetitive force and pressure during production, extending the mould's lifespan.

• Absolute Precision: Dimensions are strictly controlled down to the micrometer level, ensuring the components operate in perfect conjunction, minimizing the risk of product defects.

• Optimized Performance: The bullet head design reduces friction, which in turn shortens the stamping cycle time and enhances overall production efficiency.

• High Efficiency for Progressive Dies: The specialized design allows the punch pin to operate effectively and stably in complex progressive dies.

Post-Machining Product Inspection Process

1. Hardness Test: We use a professional hardness tester to verify the hardness of the heat-treated material.

2. Dimensional and Tolerance Check: We use a Coordinate Measuring Machine (CMM) or other high-precision measuring instruments to check the diameter, length, and concentricity.

3. Surface Inspection: We use a surface roughness tester and visual inspection to ensure there are no cracks, scratches, or other defects.

4. Functional Test: The components are test-fitted with related parts to ensure a perfect fit and smooth operation.

Packaging and Storage Process

• Cleaning and Rust Prevention: The punch pin is cleaned and coated with a specialized anti-rust oil to protect its precision surfaces.

• Secure Packaging: The product is carefully packed in a rigid plastic box or a cardboard crate with foam to prevent damage during transport.

• Information Labeling: The packaging is clearly labeled with product information, including the product code, dimensions, and handling instructions.

• Storage Instructions: We recommend storing the product in a dry, cool environment, away from high humidity and corrosive chemicals.

Contact Information:

• VINACNC - Precision CNC Machining Expert

• Hotline: +84 904609889

• Email: vinacnc.us@gmail.com

• WhatsApp/Zalo/Wechat: +84 904609889