Ball Lock Ejector Punch Blanks - Light Duty, Inch

These light-duty ball lock ejector punch blanks are used during injection mold toolbuilding to create ejector components that snap into mating retention features and maintain repeatable positioning. They are well-suited for punch-and-die build-up and for maintaining or upgrading existing tool sets where fast assembly is important.

In small-to-medium sized automotive connector molds, the ball-lock geometry helps keep the ejector punch aligned through repeated cycles, supporting consistent ejection without complex fitting. For consumer goods and appliance housings, the selectable steel options (A2, M2, or PS4) allow toolmakers to balance wear resistance against toughness for the expected abrasion level.

• Light-duty ejector stations where reliable retention and repeatable movement are required
• Inch tool components and die sets built with coded shank diameter and length

This series is offered in three steel options selected for different wear and toughness needs in light-duty ejector service: A2, M2, and PS4.

• A2: an air-hardening tool steel commonly used for balanced toughness and wear performance after heat treatment.
• M2: a higher-alloy high-speed tool steel grade (M2) typically selected where you expect greater abrasion; it can trade impact toughness for superior wear resistance.
• PS4: a pre-hardened/ready-to-machine style tool steel option (per provided options) used to support reliable performance with less heat-treatment complexity.

For best dimensional stability and surface durability, these blanks are typically manufactured to be heat-treated in a tooling-standard workflow (grinding/finishing after heat treatment where required). Select the grade based on the expected ejection pressure and wear rate; higher wear resistance grades generally provide reduced toughness margin.

Correct sizing is determined by matching the coded shank diameter and the coded length to the mating ejector assembly and die set geometry. This product supports shank diameter D (in) = 25 ~ 100 and coded lengths L = 200 ~ 400, 200 ~ 500, 200 ~ 600, or 225 ~ 600 depending on the specific variant.

• Start with the ejector housing/retention feature dimensions and confirm the required ball-lock fit based on the available shank diameter (D).
• Choose the coded L so the working end travel matches your cavity/core ejection stroke and clearance requirements.
• Confirm the required tooling group (J3, J4, J6, J9) to ensure compatibility with your specific punch-and-die build-up.

When assembling, account for normal tooling tolerances in the ejector pocket and guide interface; if your build requires tight alignment, verify clearances after finishing/grinding to maintain repeatable retention and positioning.