Inch Ejector Punches XNAP Coating

In injection and forming tooling, inch ejector punches are used to drive molded or formed parts out of the cavity/core set after each cycle. The XNAP-coated variant is well-suited to applications where consistent ejection force and long die life are critical, such as automotive connector housings and electrical terminal component molds that operate at high throughput.

• Progressive/transfer die blanking and ejection: The close-fit tip shapes (H, J, K, L, N, O, R, V, X, Y, Z) help maintain stable guidance and smoother ejection during repeated forming steps.
• Thin-wall or tight-clearance work: Optimized tip geometry supports reliable part separation where side loading can otherwise accelerate punch wear.
• Production tooling with abrasive contact: The XNAP coating is selected to improve wear resistance and maintain punch operating consistency over extended runs.

Shank geometry and ground point design improve compatibility during assembly into inch-based die blocks and standard ejector stations.

The provided specification set describes the inch ejector punch variant and its XNAP coating, but it does not list the underlying steel grade or heat-treatment state. For material selection and performance planning, treat the key differentiator here as the coating system that enhances surface durability under sliding and abrasive ejection conditions.

• XNAP coating: chosen to increase wear resistance and reduce galling risk, helping maintain stable punch operation during high-cycle production.
• Hardness and trade-offs: exact HRC values are not provided in the input data; in practice, coating performance depends on an appropriate base hardness to balance wear resistance with toughness against chipping at the tip.
• Manufacturing process (inferred from geometry needs): tip geometries are ground and the point/shank are manufactured to tight dimensional requirements for reliable assembly fit in inch tooling.

If you need a hardness/heat-treat confirmation (HRC) for qualification or warranty documentation, share the steel grade and heat-treatment data your project requires.

To select the correct inch ejector punch dimensions, match three areas to your mold/die geometry: shank diameter (D), point/tip length (B and L coded length), and tip geometry.

• Shank diameter D (in): choose from 18 ~ 250 to fit your inch-based ejector bushing or bore. Ensure the bore/punch fit prevents excessive clearance (can cause wobble) while avoiding interference that can increase ejection friction.
• Point length / overall length options: standard coded inch lengths are 150 ~ 250. Alternate ranges are available, including 150–400, 150–600, 175–625, 200–625, 225–625, 225–650, and up to 250–700 depending on the selected alternate category.
• Tip shape: select one of H, J, K, L, N, O, R, V, X, Y, Z to suit close-clearance forming and guidance requirements.

Dimensions marked by P (0.05 ~ 1.625) and W (0.062 ~ 0.5) define the fine geometry; validate these against your cavity/core knock-out space and the desired contact pattern. Tolerance/fit values are not provided in the input data—confirm with your supplier drawing for final GD&T.