Inch Point Larger than Shank Ball Lock Ejector Punches - Heavy Duty

This heavy-duty ball-lock ejector punch variant is designed for inch-based die sets where stable ball-lock seating and repeatable ejection are critical. The enlarged point versus the shank improves retention consistency, helping the punch locate firmly under cycling loads.

• Automotive die work (blanking/piercing): Use it in high-cycle stations to maintain reliable ejection force while the XCDP coating improves wear behavior on the punch working surfaces.
• Industrial forming tooling: The improved seating stability reduces the risk of micro-movement that can affect strip control and part release during forming operations.
• Thick-material die operations: In heavy-duty die work requiring durable ejector components, the point geometry supports consistent ball-lock engagement for dependable punch return and ejection repeatability.

Choose the specific tip shape code (H, J, K, L, N, O, R, V, X, Y, Z) and diameter range that matches your die layout to ensure correct locking and ejection behavior.

The provided specification set identifies this punch series as a heavy-duty unit with an XCDP coating, aimed at improving surface wear resistance during repeated die cycling. While the exact base steel grade and hardness are not specified in the input data, the intended function is clear: protect the point and working areas to reduce abrasive and scuff wear.

• XCDP coating: Enhances wear resistance for longer service life in demanding production runs, supporting consistent ejection performance.
• Coating vs. toughness trade-off: Coatings typically improve wear but are most effective when paired with proper punch geometry and seating stability to prevent edge chipping or localized impact loading.
• Heat treatment: The heat treatment condition (e.g., quenched & tempered, nitrided) and target HRC are not listed in the supplied parameters, so selection should be confirmed with the specific product spec sheet.

If you compare to uncoated or differently coated ejector punches in the same die, this series is selected specifically for its XCDP wear-focused surface protection.

To select the correct ball-lock ejector punch, match the required shank diameter (D), length (L), and point/geometry dimensions to your die core or cavity layout. The series supports D = 37 ~ 125 in and coded length ranges of 250 ~ 450 or 275 ~ 450, depending on the offered option.

• Locking and seating: Choose the tip shape code (H, J, K, L, N, O, R, V, X, Y, Z) and confirm the P dimension (0.376 ~ 1.251 in) and W dimension (0.062 ~ 1.083 in) align with the ball-lock pocket geometry to ensure stable retention.
• Working edge profile: Validate R dimension (0.007 ~ 0.4375; 0.007 ~ 0.625; 0.007 ~ 0.75; 0.007 ~ 0.875; 0.007 ~ 1 in) to achieve the intended point radius and contact behavior.
• Tolerance/fit considerations: While tolerance values are not provided here, ball-lock systems are sensitive to fit; verify your die’s ball-lock pocket dimensions and punch insertion length so seating is repeatable across the specified L range.

When multiple length options are acceptable, prefer the option that provides full working engagement without overextending the ejector stroke path.