Ball Lock Ejector Punches - Light Duty Metric XCDP Coating

Ball-lock ejector punches are used in injection mold tooling where reliable blank positioning and controlled ejection forces are required. This light-duty metric variant is well-suited to automotive connector and terminal molds, where repeated short-cycle ejection demands consistent punch-to-cavity alignment.

For consumer electronics and housings, the ball-lock style helps maintain stable contact during cycling, reducing the risk of drift that can affect part surface finish or dimensional consistency. The XCDP coating is designed to improve abrasion resistance at the sliding interface, supporting longer wear in high-throughput lines.

• Automotive connector molds: repeatable positioning for smooth ejection and consistent part fit.
• Medical device housings (light duty): controlled ejection to protect cosmetic surfaces during demolding.
• General die/mold bases: repeatable punch positioning under moderate load with extended service life.

This ejector punch series is offered in M2 and PS4 materials, selected to balance wear resistance and toughness for different operating conditions. M2 (AISI M2 equivalent) is a high-speed steel commonly chosen for its strong wear performance; it is typically heat treated by quenching and tempering to reach a service-ready hardness.

PS4 is a tool steel grade optimized for mold components where a tougher response to impact and edge loading is beneficial, often with a hardness level appropriate for long-life punch applications.

• Hardness/trade-off: M2 generally targets higher wear resistance, while PS4 is selected when toughness and resistance to chipping are prioritized.
• Manufacturing approach: ground and finished shank geometry to maintain stable seating in metric mold systems.
• Coating interaction: the XCDP coating further improves abrasion resistance at the contact zones, extending service life under repeated cycles.

Select dimensions by matching the punch shank to the ejector plate/tooling interface and by ensuring the point geometry fits the required part feature. For this series, the shank diameter (D) ranges from 6 to 38 mm, so choose the smallest diameter that meets your loading and guidance requirements to maintain alignment.

Confirm the point length (L1) and overall length (L) against cavity/core depth and ejector travel. Available L1 ranges include 10–13, 10–19, 13–25, and 19–30 mm, while L ranges include 63–100, 71–100, 80–100 mm.

• Match tip shape (H, J, K, L, N, O, R, V, X, Y, Z) to the blank/feature to be positioned.
• Use P (1.4–12 mm) and W (1.4–14 mm) to fit the contact envelope; R is listed as 0.2 mm.
• Consider tolerance stack-up in the ejector plate pocket to maintain ball-lock seating during cycling; select the exact shank diameter size from the available range.