Extended Range Ejector Punches Metric XNP Coating

Extended-range ejection punches are used in injection mold and die tooling where the ejector requires additional reach to push parts out evenly. The extended geometry supports stable ejection during high-cycle production, helping reduce sticking and uneven release on deeper features.

• Automotive interior connector and trim tooling: When gate/runner layouts or deep ribs require longer travel, the extended point and metric shank help achieve consistent part release across the cavity.
• Consumer electronics housings: For thin-wall parts with bosses and undercuts, the extended reach supports uniform ejection forces without relying on exaggerated core deflection.
• General die applications: In tooling that sees frequent actuator cycles, the XNP coating is suited for wear-prone ejector tips and guide contact areas.

This variant’s metric construction and selectable point/tip shapes (H, J, K, N, O, R, V, X, Y, Z) make it compatible with standardized tool sets while the XNP coating improves wear resistance for repeated production runs.

The provided configuration specifies an XNP coating for wear resistance, but no base steel grade or hardness value (HRC) is included in the available product data. As a result, material heat treatment details such as quench & tempering, nitriding, or retained-austenite control cannot be stated from the supplied specifications.

• Coating effect (XNP): Designed to improve surface durability of the ejector punch during repeated ejection cycles, reducing abrasion and tip wear in production.
• Wear vs. toughness trade-off: Coatings generally enhance wear life at the contact surfaces; however, overall toughness is still determined by the underlying punch steel and heat treatment.
• Material comparison: No alternative steel grades are listed for this series in the provided data, so direct comparisons cannot be made.

For a confirmed hardness (HRC) target and heat-treatment state, request the specific material certificate or drawing for series code 250301827751.

Select the ejector punch based on the required total insertion length, point length, and the space available in your mold plate stack. This series offers L = 63 ～ 100 mm (fixed) and L1 (point length) = 25 ～ 30 mm (fixed), so choose the L that matches the core/cavity depth and safe clearance to the parting line and ejector return travel.

• Shank diameter (D): Choose from 40, 45, 50, 56, 63 mm to match the ejector hole/bushing or guide bore design.
• Contact and clearance dimensions (P, W, R): Use P/W ranges (20 ～ 39.95, 25 ～ 44.95, 30 ～ 49.95, 35 ～ 55.95, 40 ～ 62.95 for P; and corresponding W ranges) to align tip geometry with the part’s ejection contact area.
• Radius/edge blend (R): Select R from 0.2 ～ 19.975 up to 0.2 ～ 31.475 depending on required stress distribution and clearance around ribs/undercuts.

Because specific tolerance values are not provided, confirm fit strategy (clearance vs. interference) against your standard ejector bushing/hole tolerances and toolmaker practice for this series.