Inch Ejector Punches - XNT DayTiN® Coating

These inch ejector punches are used inside injection mold tooling to drive part ejection with stable stroke behavior and predictable return. The XNT DayTiN® coated surface is suited for applications where repeated sliding contact can accelerate wear, helping maintain consistent punch performance over long production runs.

• For automotive connector and housing molds, the high-cycle ejection action benefits from the low-friction coating, supporting reliable release without premature surface degradation.
• In consumer electronics enclosure tooling, dimensional consistency in the punch shank and tip geometry supports proper alignment during ejection, reducing the risk of cocking and uneven part release.
• In die punching and progressive forming stations, the range of tip shapes and standardized point lengths supports tooling designers who need robust actuation across varying stock thickness and forming layouts.

Specification data provided for this series focuses on geometry and the XNT DayTiN® coating, not on an explicit steel grade or heat-treatment cycle. Therefore, the key performance-related material factors here are the coating’s wear-resistance contribution and its role in controlling friction at the punch-work interface.

• XNT DayTiN® coating: engineered as a thin coating system to improve surface durability under repeated ejection cycles, supporting consistent sliding behavior.
• Hardness / wear vs. toughness trade-off: coated punches typically prioritize wear resistance at the surface; designers should account for the balance between a harder surface and the underlying substrate toughness (not specified in the provided data).
• Multiple material options: not listed for this product; coating variant is the differentiator in the available specifications.

Select an ejector punch size by matching the required shank diameter (D), tip shape, and overall point length (B & L) to the core/cavity ejection layout. This series provides D = 18 ~ 250 in and coded point length ranges including S = 150 ~ 250, with alternate B and C/D/E coding options extending up to 650 and beyond, depending on the specific length code.

• Choose the tip shape (H, J, K, L, N, O, R, V, X, Y, Z) that matches the part underside geometry for stable contact during ejection.
• Verify the P dimension (0.05 ~ 1.625 in) and W dimension (0.062 ~ 0.5 in) against the clearance and penetration constraints of the ejector bore and relief features.
• Confirm the R dimension (0.007 ~ 0.007 in) to ensure the required edge radius is compatible with the part surface to minimize marks.

If you work with ejector guide systems, ensure press-fit or clearance recommendations in your ejector plate/bushing design are satisfied; the provided data gives size ranges, while specific tolerance/fit values are not included here.