Heavy Duty Inch XNT DayTiN® Coated Point Larger than Shank Ball Lock Ejector Punches

These heavy-duty inch ball-lock ejector punches are used in injection mold tooling where positive ejection and consistent retention are critical, especially in punch-and-die style core/cavity systems. The point geometry that is larger than the shank helps maintain stable ball-lock seating, reducing the risk of misalignment during repetitive cycles.

• Automotive and appliance housings: For multi-part molds that see high ejection frequency, the XNT DayTiN® surface coating improves wear resistance at the tip interface, supporting longer die life.
• Thin-wall or high-precision inserts: The selectable tip shapes (H, J, K, L, N, O, R, V, X, Y, Z) allow engineers to match local clearance and ejection force distribution around gated features.
• High-cycle family molds: The ball-lock design supports reliable retention, helping maintain uniform ejection timing across cavities.

This variant’s wear-focused coating and engineered tip options make it suitable when both retention stability and tip durability are required.

The provided specification set focuses on geometry and coating rather than listing a specific steel grade. What is confirmed for this product family is the XNT DayTiN® coating, which is selected to enhance surface durability under sliding and impact-like wear conditions typical for ejector punch tip interfaces.

• Coating function: The DayTiN-based coating improves wear resistance to help maintain dimensional stability and consistent ejection behavior over time.
• Hardness/wear vs. toughness trade-off: Hard, wear-resistant coatings generally improve abrasion resistance, but the underlying substrate toughness remains important to withstand shock loads during ejection. Proper fit and guided alignment therefore remain essential.
• Heat treatment: No specific heat treatment state (e.g., quenched & tempered, nitrided) is stated in the input data; therefore, it should be confirmed for your exact variant or drawing before final design lock-in.

If you compare variants within the same series, prioritize the same coating system for consistent tribological performance, then select the tip shape and shank dimensions to match your ejection mechanics.

Select the ejector punch size by matching both shank diameter, length, and tip shape to your cavity/core and guidance stack-up. This product specifies an inch shank diameter D of 37 ~ 125 (in your drawing’s unit convention), and a coded length L of 250 ~ 450 or 275 ~ 450.

• Tip shape: Choose from H, J, K, L, N, O, R, V, X, Y, Z to fit your local ejection area and clearance around the part features.
• Match P and W dimensions: Verify the P (0.376 ~ 1.251 in) and W (0.062 ~ 1.083 in) dimensions against the mating pocket/ball-lock interface envelope in your mold layout.
• Ball-lock group: Confirm the Jektole group (J4, J6, J9, J12) to ensure compatibility with the corresponding retention and seating geometry.

For best ejection repeatability, maintain specified clearances and account for coating thickness when verifying interference around the tip and shank. Tolerances are not provided in the input data, so use the vendor drawing/spec for final interference checks.