Inch Ball Lock Ejector Punches - Light Duty, XNA Coated

This light-duty inch ball lock ejector punch is used in injection and stamping tooling where ejection must remain stable over repeated cycles. The ball-lock point design improves seating stability, helping keep the punch tip positioned consistently under load.

Common scenarios include automotive and consumer-part die sets that require reliable part release while resisting abrasion from frequent contact. The XNA coating is suited for these high-stop-start production environments because it helps maintain performance by improving abrasion resistance.

It’s also a good fit for light-duty mold inserts and housings used in small to medium production runs, where punch replacement and maintenance should be straightforward. Engineers typically select this variant when they need inch-standard dimensions and predictable punch geometry for consistent ejection.

• Ball lock point helps reduce seating variation during operation
• XNA coating supports wear resistance for repeated cycles
• Inch light-duty tooling compatibility supports maintenance-friendly designs

This series is offered in M2 and PS4 steels, selected to balance wear resistance and toughness for ball lock ejector applications. M2 (commonly an AISI M2 high-speed steel family) is generally chosen when higher wear resistance is needed; PS4 is selected when a different performance balance is preferred for light-duty operating conditions.

Manufacturing typically includes machining of shank and point geometry followed by a suitable heat treatment such as quenching and tempering (for hardened grades) to achieve stable hardness and dimensional stability. After hardening, punches are ground/finished to size to control fit at the ball-lock interface.

• XNA coating improves abrasion resistance for production wear
• M2: higher wear-focused performance; may be more sensitive to shock depending on tool design
• PS4: alternative steel option for light-duty stability and machinability

To select the correct ball lock ejector punch dimensions, start with the required shank diameter D in inches. This series supports D = 25 ~ 100 (in the provided inch-coded specification), so you must match it to the bore or guide feature in the mold/die.

Next, choose the appropriate point length L from the available coded-inch ranges. The standard options listed include 200 ~ 400, 200 ~ 500, 200 ~ 600, and 225 ~ 600, depending on the configuration. For the fixed family variant, point length B & L is 250 ~ 600, which is typically used to lock in a specific depth/penetration profile.

• Match D to the guide/bushing bore for correct alignment
• Select L (and fixed/flexible B & L ranges) to achieve required ejection stroke
• Use P (0.05 ~ 0.75) and W (0.05 ~ 0.437) to fit the ball-lock geometry to your mating components
• Confirm tolerance/fit at the ball-lock seating to prevent tip float and inconsistent ejection