VINACNC - Expert in High-Precision SKD61 and FDAC 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 SKD61 and FDAC 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 products are crafted from high-quality tool steels:

  • SKD61 Steel (JIS): A widely used tool steel known for its hardness, strength, and good heat resistance, suitable for plastic injection and die-casting moulds.

     

  • FDAC Steel (Daido Steel): A special steel improved from the H13-grade, known for its thermal crack resistance and ability to maintain hardness at high temperatures, making it ideal for die-casting applications.

• Technical Properties:

  • Hardness: After heat treatment, the materials achieve a stable hardness (typically HRC 48-54° for SKD61 and HRC 38-42° for FDAC), allowing the ejector sleeves to withstand high pressure and friction during continuous operation.

  • Precision: The products are 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: SKD61 and FDAC ejector sleeves are indispensable components in plastic injection molds and die-casting molds for complex, high-durability parts such as automotive components, electronic device housings, and industrial products.

Product Advantages

• Superior Durability: By using high-quality steel and advanced heat treatment processes, our ejector sleeves can withstand 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 sleeves operate 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 sleeves high wear resistance, allowing them to withstand millions of production cycles.

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 inner diameter, outer 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. 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 sleeves are cleaned and coated with a specialized anti-rust oil to protect their precision surfaces.

• Secure Packaging: The products are 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 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