VINACNC: Expert in SKH51 Straight Ejector Pins & Core Pins

The detail information of product

VINACNC - Expert in High-Precision SKH51 Straight Ejector Pins and Head Blank Core Pins

In the mould industry, ejector pins and core pins are core components that determine the precision and efficiency of the part ejection process. VINACNC is proud to supply high-quality SKH51 straight ejector pins and head blank type core pins with high hardness and tight tolerances, ensuring superior performance and durability even under harsh production conditions.

Technical Specifications, Materials, and Applications

Material: The products are crafted from SKH51 High-Speed Steel (HSS), a high-quality tool steel widely used for its high hardness, excellent wear resistance, and good toughness after heat treatment.
Technical Properties:
- Hardness: After heat treatment, the material achieves a stable hardness (typically HRC 58-62°), allowing the pins to withstand high pressure and friction during continuous operation.
- Precision: Products are CNC machined with extremely tight diameter tolerances, ensuring a perfect fit with the mould, preventing plastic leakage, and guaranteeing the accuracy of the final product.
- Dimensions: The ejector pins have a diameter of 4mm.
- Head Blank Type: The core pins are designed with a head blank, which allows for precise positioning and easy installation into the mould.
Applications: SKH51 straight ejector pins and head blank type core pins are indispensable components in plastic injection moulds and stamping dies. Their primary function is to smoothly and precisely eject the cooled product from the mold cavity, preventing product damage and mould sticking.

Product Advantages

Superior Durability: With high-quality SKH51 material, the pins resist repetitive force and pressure during production, extending the mould's lifespan.
Absolute Precision: Dimensions are strictly controlled down to the micrometre 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.
High Wear Resistance: The super-precision machined surface gives the components high wear resistance, allowing them 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.
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 pins 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 product information, including the product code, dimensions, and handling instructions.
Storage Instructions: We recommend storing the products in a dry, cool environment, away from high humidity and corrosive chemicals.