M2 Steel Ball Lock Ejector Punches - Light Duty, XNAP Coating

These light-duty ball lock ejector punches are designed for repeatable part release in metric injection mold tooling where stable ejector alignment is critical. The ball-lock mechanism improves positional stability during stroke, reducing lateral movement that can affect surface finish.

• Automotive and appliances connector/clip molds: Use for multi-cavity housings where consistent ejection helps prevent stringing and part hang-up; the M2 steel base supports durable ball-lock engagement, and the XNAP coating helps maintain lower friction during high cycle operation.
• Consumer electronics housings and snap-fit parts: Suitable when tight ejection repeatability is needed to avoid cosmetic marks; multiple tip shape options (H/J/K/L/N/O/R/V/X/Y/Z) allow matching contact geometry to part features.
• General industrial die casting, stamping, and forming fixtures: The light-duty construction balances wear control and smooth ejection for routine production runs, leveraging the coating to support stable release.

The standard material option is M2 high-speed steel, typically selected for its combination of hardness and wear resistance in tooling components that see sliding contact. For this series, the XNAP coating is specified to reduce friction and help control wear over cycles, supporting stable ball-lock function and smoother ejection.

• Hardness/toughness trade-off: M2’s high hardness improves abrasion resistance, while its toughness is adequate for light-duty ejector use; switching to a lower-cost material can reduce wear performance but may improve impact tolerance depending on application demands.
• Alternative material: PS4 is listed as an available material; compare based on expected wear rate versus required robustness for your ejection load and surface finish targets.

Heat treatment details (e.g., quenched & tempered or nitriding state) are not provided in the available specifications, so confirm the supplied hardness and treatment condition with the component datasheet before final qualification.

Selection starts with matching the shank diameter (D) and working length to your mold cavity/core layout. This series covers D = 6–38 mm, so choose the closest D to your ejector guide bore and ball-lock seat requirements to maintain concentric motion.

• Tip/point engagement: Use the listed tip shapes (H, J, K, L, N, O, R, V, X, Y, Z) and match the point geometry to the part’s ejecting surface.
• Point length (L1): Select from 10–13 mm, 10–19 mm, 13–25 mm, or 19–30 mm based on required penetration depth into bosses or recesses.
• Total length (L): Confirm available range for your build-up: L = 63–100 mm, 71–100 mm, or 80–100 mm.
• Lock/feature dimensions: Verify P = 1.4–12 mm, W = 1.4–14 mm, and R = 0.2 mm per design drawings.

Because tolerance and fit values are not specified here, use your ejector guide and ball-lock clearance targets; ensure the selected D and length provide correct stroke travel without binding.