Straight Ejector Punches - Metric, XNT DayTiN® Coating

These straight ejector punches are used in injection mold tooling where dependable, axis-aligned ejection is required. The straight punch geometry supports stable force transmission, reducing misalignment risks during repeated stroke cycles.

• Die spotting and press tooling: The optimized, wear-focused XNT DayTiN® surface coating helps maintain punch performance under frequent contact and sliding, which supports consistent spotting quality over time.
• Small to mid-size ejection systems: With metric lengths in the 50–90 mm range and P dimension 5–16 mm, the punches can be matched to common ejector layout depths while keeping the working end aligned to the cavity tooling axis.
• Production runs with high cycle counts: The coating durability is especially suited for long-lived tooling where surface wear could otherwise degrade ejection repeatability.

Use this variant when smooth, straight-line ejection and wear stability are key requirements for repeatable press performance.

The provided configuration specifies a XNT DayTiN® coating for wear resistance. In tooling practice, DayTiN-type coatings are applied to punches to improve surface durability during repeated contact, helping resist wear-driven dimensional change that can affect ejection alignment.

• Coating function: Enhanced surface wear resistance supports reliable punch performance in die spotting and pressing environments.
• Wear vs. toughness trade-off: Coatings primarily improve the surface layer; they do not replace the underlying steel’s toughness. Proper punch straightness and robust base material are still required to avoid cracking under load.
• Heat treatment state: The heat treatment method and base steel grade (e.g., quench & temper, nitriding) are not specified in the provided data.

For exact base hardness (HRC), steel grade, and heat-treatment condition, confirm the supplied technical drawing or material certification tied to series code 250301354150.

Select the correct ejector punch dimensions by matching the required working stroke alignment and tooling space constraints in the cavity/core assembly.

• Length L (mm): Choose from 50–90 mm to fit the available ejector plate-to-cavity depth while maintaining straight-line guidance through the mounting and guide components.
• P dimension (mm): Verify the P = 5–16 mm requirement for your punch interface geometry (as defined by the ejector plate or holder design).
• Fit and tolerance considerations: Ensure the punch fits the corresponding holder/guide with appropriate clearance to prevent binding during ejection, while still maintaining lateral stability for repeatability.
• Integration check: Confirm that the selected L length does not bottom out in the open position and that the punch tip travel supports full part release without over-stroking.

These dimensions are provided as fixed ranges for this series, so select the variant that best matches your mold’s cavity/core and ejector plate geometry.