Professional Plastic Injection Mold 65Mn Ejector Sleeve

The detail information of product

VINACNC - High-Precision and Durable 65Mn Ejector Sleeves

In the mould industry, the ejector sleeve is a core component that determines the precision and efficiency of the part ejection process. VINACNC is proud to supply 65Mn ejector sleeves 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. This material is 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 sleeve to withstand high pressure and friction during continuous operation.
- Precision: The product is machined with extremely tight inner and outer diameter tolerances, ensuring ideal concentricity and a perfect fit with the core pin. This prevents plastic leakage and guarantees 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 sleeve.
Applications: 65Mn ejector 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 a hardness of HRC 50±2°, the ejector sleeve resists repetitive force and pressure during the production process, extending the mould's lifespan.
Absolute Precision: Dimensions are strictly controlled down to the micrometer level, ensuring the ejector sleeve operates in perfect conjunction with the core pin, 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 sleeve 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 inner diameter, outer 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.
Mould Trial Run: We conduct a trial run on a real injection molding machine to evaluate the quality of the sample parts and ensure stable mold operation.

Packaging and Storage Process

Cleaning and Rust Prevention: The sleeve 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, temperature-stable environment to prevent rust and damage.