VINACNC - High-Precision Custom Ejector Pins and Stepped Sleeves

In the mould industry, ejector pins and ejector sleeves are core components that determine the precision and efficiency of the part ejection process. VINACNC is proud to supply custom straight 65MN ejector pins and stepped ejector sleeves, manufactured with high hardness and tight tolerances. This ensures superior performance and durability even under harsh production conditions.

Technical Specifications, Materials, and Applications

• Material: The products are crafted from 65Mn spring steel—a high-quality carbon alloy steel, known for its high hardness and excellent wear resistance after heat treatment.

• Technical Properties:

  • Straight Ejector Pins: A straight design suitable for various applications, providing uniform ejection force across the entire contact surface.

  • Stepped Ejector Sleeves: A stepped design that ensures precise positioning and a focused ejection force.

  • Hardness: After heat treatment, the material achieves a stable hardness, allowing the components to withstand high pressure and friction during continuous operation.

  • Precision: Products are machined with extremely tight diameter tolerances, ensuring a perfect fit with the mold, preventing plastic leakage, and guaranteeing the accuracy of the final product.

• Applications: 65MN ejector pins and stepped sleeves are indispensable components in plastic injection molds, rubber molds, and stamping die systems. Their primary function is to smoothly and precisely eject the cooled product from the mold cavity, preventing product damage and mold sticking.

Product Advantages

• Superior Durability: With optimized hardness, these components resist repetitive force and pressure, extending the mold's lifespan.

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

• Optimized Performance: The smooth operation helps to reduce the molding cycle time and enhances overall production efficiency.

• Custom OEM Service: We provide a custom manufacturing service from design and mold development to mass production, ensuring the product perfectly matches the client's blueprints and intended use.

Post-Machining Product Inspection Process

1. Hardness Test: We use a professional hardness tester to verify the hardness of the heat-treated material, ensuring it meets technical specifications.

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. Functionality 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 components are cleaned and coated with a specialized anti-rust oil to protect their precision surfaces.

• Secure Packaging: Products are carefully packed in rigid plastic boxes or cardboard crates with foam to prevent damage during transport.

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

• Storage Instructions: We recommend storing the products 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