Mould Components: Precision Ground Return Pins for Flawless Mold Operation

The detail information of product

VINACNC - Expert in High Precision Die Return Pins with a Smooth Surface Finish

In the mould industry, die return pins are a core component that determines the accuracy and efficiency of the mold closing process. VINACNC is proud to supply precision engineered die return pins with a smooth surface finish designed to minimize friction and enhance mold efficiency.

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 extremely tight diameter tolerances, 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: Die 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

Enhanced Mold Efficiency: The smooth surface finish minimizes friction, which allows for a faster and more efficient mold closing and opening cycle, thereby increasing overall productivity.
Exceptional Precision: Dimensions are strictly controlled down to the micrometre level, ensuring the return pins operate in perfect conjunction with the mould, minimizing the risk of damage.
Superior Durability and Long Lifespan: With high-quality materials, the return pins resist repetitive compressive force and friction, extending the mould's lifespan.
High Wear Resistance: The smooth surface finish 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.
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.