Die Return Pins with Precise Dimensional Tolerance: The Optimal Solution for Injection Moulds

The detail information of product

VINACNC - Expert in High Strength Return Pins with Precise Dimensional Tolerance

In the mould industry, return pins are a core component that determines the accuracy and efficiency of the mold closing process. VINACNC is proud to supply high strength return pins with precise dimensional tolerance, designed to guarantee seamless integration into precision molds.

Technical Specifications, Materials, and Applications

Material: The products are crafted from high-quality tool steels such as SKD61, SKH51, H13, or other materials as per customer requirements. These materials are known for their high hardness and excellent wear resistance after heat treatment.
Technical Properties:
- Hardness: After heat treatment, the material achieves a stable hardness (typically above HRC 50°), allowing the return pins to withstand high pressure and friction during continuous operation.
- Precision: The products are machined with an extremely precise dimensional tolerance, ensuring a perfect fit with the mold and a smooth closing process.
- Surface Finish: The surface is specially treated to achieve high smoothness, which reduces friction, ensures a seamless return process, and extends the lifespan of the pins.
Applications: High strength return pins are indispensable components in plastic injection molds and stamping die systems. Their primary function is to ensure that the ejector system has fully returned to its initial position before the mold closes, preventing collisions and damage.

Product Advantages

Seamless Integration: The precise dimensional tolerance ensures that the return pins can be perfectly integrated into precision molds, enhancing overall operational efficiency.
Superior Durability: With high-quality materials, the return pins resist repetitive compressive force and friction 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 and minimizing the risk of mold damage.
Reliable Performance: The smooth operation of the return pins helps to reduce the molding cycle time and enhances overall production efficiency.

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 return pins are test-fitted with related parts to ensure a perfect fit and smooth operation.

Packaging and Storage Process

Cleaning and Rust Prevention: The products 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.