M2 Steel Ball Lock Ejector Punches - Light Duty, Inch XNT DayTiN® Coating

Ball-lock ejector punches in light-duty injection tooling use the ball-lock mechanism to keep the punch seated and aligned during repeated ejection cycles. This version is especially suited for applications where consistent ejection depth and controlled repeatability are needed without overbuilding the tool.

• Light-duty die casting and molding setups: The ball-lock tip geometry helps maintain stable punch positioning, reducing drift that can affect part ejection and finishing.
• Automotive and industrial connector housings: Use in molds that require reliable ejection from complex ribs or latch features while keeping tooling costs and maintenance effort manageable.
• Mold maintenance and die repair: M2 steel with the XNT DayTiN® wear coating supports longer service life for refurbished ejection systems in production environments.

Engineered for coded inch point lengths and multiple tip shapes, it can be selected to match existing punch dimensions and tool space constraints.

This punch uses an M2 steel substrate. M2 is an AISI M2 equivalent high-speed steel known for strong wear resistance and good hot hardness under intermittent elevated temperatures typical of ejection tooling.

• Coating: The XNT DayTiN® surface coating is applied to improve wear resistance at the tip where sliding/impact occurs.
• Hardness / performance trade-off: M2’s toughness is lower than some lower-alloy steels, so it benefits most when the coating and fit are correct to minimize chipping and abrasive wear.
• Alternative material option: The series also lists PS4 as a material option; in general, PS4 selections are typically chosen for different wear/toughness balances depending on application severity, while M2 is preferred when you want higher wear capability at the working face.

Refer to the configured M2/PS4 option for the final heat-treatment state and hardness target used in your build.

Select the ejector punch to match your mold’s ejection stroke and the available mounting space. The series provides inch-based coded lengths, including standard point length L: 200–400, 200–500, 200–600, and 225–600 depending on the configuration.

• Shank diameter (D): choose 25–100 in within the series range to fit your guide hole and support bore requirements.
• Point length (B and L): select the coded B & L range that matches your required projection and retraction.
• Fixed option: for one configuration, point length is fixed at 250–600 (coded inch), so verify cavity/core depth and stop positions accordingly.

Because ball-lock punches depend on seating stability, ensure the selected shank diameter and point length align with the tool’s locking geometry. If your assembly uses specific fit rules, maintain your shop’s standard tolerance for punch-to-guide clearance, especially at the working region.