Durable 65Mn Ejector Pins: The Optimal Solution for Plastic Injection Moulds

The detail information of product

VINACNC - High-Precision and Durable 65Mn Ejector Pins

In the mould industry, the ejector pin is a core component that determines the precision and efficiency of the part ejection process. VINACNC is proud to supply 65Mn ejector pins with high hardness and tight tolerances, ensuring superior performance and durability even under harsh production conditions.

Technical Specifications, Materials, and Applications

Material: The product is 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:
- Hardness: After heat treatment, the material achieves a stable hardness of HRC 50°±2°, allowing the ejector pin to withstand high pressure and friction during continuous operation.
- Precision: The product is machined with extremely tight diameter tolerances, ensuring a perfect fit with the mold, preventing plastic leakage, and guaranteeing the accuracy of the final product.
- Surface Finish: The surface is specially treated to achieve high smoothness, which reduces friction, ensures a seamless ejection process, and extends the lifespan of the pin.
Applications: 65Mn ejector pins are indispensable components in plastic injection 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 a hardness of HRC 50°±2°, the ejector pin resists repetitive force and pressure during production, extending the mould's lifespan.
Absolute Precision: Dimensions are strictly controlled down to the micrometer level, ensuring the ejector pin operates in perfect conjunction with the mold, 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.
High Wear Resistance: The ultra-precise surface finish gives the pin high wear resistance, allowing it to withstand millions of production cycles.

Post-Machining Product Inspection Process

Hardness Test: We use a professional hardness tester to verify the hardness of the heat-treated material, ensuring it meets technical specifications.
Dimensional and Tolerance Check: We use a Coordinate Measuring Machine (CMM) or other high-precision measuring instruments to check the diameter, length, and concentricity.
Surface Inspection: We use a surface roughness tester and visual inspection to ensure there are no cracks, scratches, or other defects.
Functionality Test: The ejector pin is test-fitted with related components to ensure a perfect fit and smooth operation.

Packaging and Storage Process

Cleaning and Rust Prevention: The 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 the product code, weight, dimensions, and handling instructions.
Storage Instructions: We recommend storing the product in a dry, cool environment, away from high humidity and corrosive chemicals.