Ball Lock Ejector Punches Heavy Duty Metric X-Shaped Tip

These heavy-duty ball lock ejector punches are used in injection mold tooling where stable retention and predictable ejection forces are critical. The positive ball-lock action helps keep the punch securely engaged during press cycles, reducing the risk of tool movement under load.

Automotive connector and sensor housings: For molds producing snap-fit components, the X-shaped tip geometry supports controlled engagement with the molded part features, helping achieve repeatable release over high-cycle production.

Consumer electronics and appliance housings: In thin-wall or multi-material assemblies, the X-shaped tip can improve contact stability during ejection, supporting consistent part removal while minimizing uneven force distribution.

General industrial brackets and enclosures: For heavy-duty die and mold layouts, metric shank diameters (10–40 mm) and multiple point-length options (10–19 mm, 13–25 mm, 19–30 mm) allow alignment to cavity/core spacing and ejector stroke requirements.

• Ball-lock retention supports reliable operation during repeated cycles
• X-shaped tip helps maintain consistent contact under load
• M2 or PS4 variants support wear-focused tooling applications

This series is available in M2 steel or PS4 to match wear and durability needs in ejection systems. M2 is a high-speed steel commonly chosen for its strong wear resistance in sliding/impact conditions, making it suitable for frequent ejection cycles. PS4 is offered as an alternative steel option for wear-oriented tooling; the exact hardness and treatment profile can vary by supplier processing, so confirm the heat-treatment spec when placing a build.

Heat treatment (typical for HSS ejector punches):

• M2 is generally quenched and tempered to reach the target hardness before finishing.
• Final hardness is usually selected to balance wear resistance against toughness for preventing tip chipping.

Hardness and trade-offs: Higher hardness increases abrasion resistance of the X-shaped tip, but excessive hardness can reduce impact toughness. Select the variant based on ejection force, expected cycle life, and part surface conditions.

Correct sizing ensures the ball-lock ejector punch seats properly and delivers the intended ejection force. Start by matching the shank diameter D to your ejector system: available D = 10–40 mm (metric). Choose a tip shape from H, J, K, L, N, O, R, V, X, Y, Z based on how the tip should engage the part feature.

Next, verify the stroke and penetration geometry using the length parameters:

• L (overall length): options include 63–100 mm, 63–125 mm, 71–125 mm, and 80–125 mm.
• L1 (point length): options include 10–19 mm, 13–25 mm, and 19–30 mm.

For fine engagement detail, confirm the P and W dimensions (each ranges 1.5–12 mm for P and 1.5–14 mm for W) and the R dimension (shown as 0.2 mm). Ensure your cavity/core clearance allows the selected tip length to contact the part without bottoming. If your assembly uses tight ejector alignment, account for machining/setup tolerances in addition to the punch-to-bar fit.