Point Larger than Shank Ball Lock Punches - Light Duty, Metric

This light-duty metric ball-lock punch is used in injection molding and die-cavity systems where controlled retention between the ejector and punch body is required during ejector strokes. The point geometry being larger than the shank helps stabilize ball-lock engagement, reducing the risk of retention drift under repeated cycling.

• Medical device housings: Suitable for small, precision ejector applications on metric tooling, where consistent engagement helps maintain alignment of slender ejector components.
• Automotive connector and insert molds: Works for light duty ejection layouts that require predictable punch retention when contacts are frequent but parting forces are moderate.
• Consumer product housings: A practical choice for thin-wall ejector systems that benefit from the protective XCD coated working surface to resist wear at the point interface.

The XCD coated variant is particularly suited to applications that need improved surface protection while using metric die work with reliable, repeatable ejection.

The provided datasheet identifies this series by geometry and an XCD coating, but it does not specify the underlying steel grade or heat-treatment condition (e.g., pre-hard, quenched & tempered, nitrided). As a result, hardness (HRC) and the detailed wear/toughness trade-offs of the base steel cannot be stated from the current input.

• XCD coating: Designed for improved surface protection on the working point where micro-contact and sliding can occur during ball-lock engagement and ejector action.
• Coating vs. substrate: In these punches, the practical durability improvement is driven primarily by the surface coating at the contact zone; base material selection still governs impact toughness and overall wear life.

If you need a specific hardness (HRC) target for your ejection load, provide your preferred steel grade or tolerance/finish requirements so the correct heat-treated grade can be matched.

Selection starts by matching the shank diameter D and the point geometry to your ball-lock pocket and die/ejector interface. This series is offered with D values of 13, 16, 20, 25, and 32 mm, so choose the shank size that corresponds to the ball-lock punch seat and guide requirements in your mold block.

• Point length L1: fixed range 19 to 30 mm. Ensure L1 provides sufficient engagement depth without bottoming in the ball-lock feature.
• P dimension: variable in ranges 13.1–32, 16.1–38, 20.1–40, 25.1–44, and 32.1–50. Match P to the required point-to-contact location in your press/die geometry.
• Overall length L: fixed 80 to 100 mm. Verify clearance in the ejector stack-up and ensure full stroke operation without interference.
• Tip shape: choose from H, J, K, L, N, O, R, V, X, Y, Z to suit your press contact profile.

When comparing to cavity/core designs, account for functional fit of the ball-lock interface; dimensional variants (P, W, R, and tip shape) are configurable, while L and L1 are fixed ranges—confirm the engagement length before finalizing the ejector layout.