Ball Lock Ejector Punches (M2 Steel) - Light Duty, XNAD Coating

These light-duty ball lock ejector punches are used in injection mold tooling and die manufacturing where stable part retention and reliable ejection are required. The ball-lock mechanism helps maintain engagement during cycling, reducing the risk of premature disengagement under moderate loads.

• Automotive connector and sensor housings: When small parts must be held firmly during injection and then released consistently, the ball-lock geometry supports repeatable ejection; the light-duty build and XNAD coating help manage wear on the punch working surface.
• Consumer electronics and light gauge metal stampings: In progressive dies or small stations, controlled ejection is critical to avoid scuffing and to keep scrap low. XNAD’s surface protection plus the M2-based tool steel selection supports predictable performance over production runs.
• Precision mold inserts and test fixtures: For short lead-time tool builds, the selectable tip shapes (H through Z) and multiple point-length options help match geometry to specific cavities and part features.

Overall, this variant is suited for applications with moderate ejection forces and frequent cycling where surface wear control is important.

This series is offered with M2 tool steel as the primary material option. In typical tooling equivalence, M2 corresponds to AISI M2 / high-speed steel family, selected for its balance of wear resistance and toughness under repeated contact. Depending on supplier processing, M2 punches are commonly delivered in a heat-treated condition such as quenched and tempered, targeting functional hardness in the working region.

• Wear resistance: M2’s alloying supports good resistance to abrasive and adhesive wear during repeated ejection.
• Toughness trade-off: Compared with more ductile steels, higher hardness tool steels can be more sensitive to edge chipping if misaligned or overloaded.
• Surface protection: The XNAD coating is applied to further improve surface endurance and reduce premature wear on the ejector tip.

A second material option (PS4) may be suitable when customers prioritize different wear/toughness balance; however, the provided series description specifically highlights M2 with XNAD for reliable ejection and surface wear management.

Select dimensions by matching the punch working point and shank to the mold’s ejector travel space and the part release feature geometry. Start with the D (shank diameter) = 6 ~ 38 mm range to ensure the punch fits the die plate bore or guide without interference, while maintaining correct alignment through the ejector train.

• Choose tip geometry: Pick the required Tip Shape (H, J, K, L, N, O, R, V, X, Y, Z) based on the part’s contact land and the desired release footprint.
• Match point length: Use L1 (Point Length) in the available bands (10–13, 10–19, 13–25, 19–30 mm) to control how deep the ball-lock engages relative to the cavity/core pocket.
• Set overall length: Verify available L (Length) options (63–100, 71–100, 80–100 mm) against ejector stroke and backing plate clearance.

Use P (1.4 ~ 12 mm) and W (1.4 ~ 14 mm) to confirm the design-specific engagement envelope. The product provides a fixed geometry per size; ensure your mounting bores and guide features accommodate the selected diameter and length to prevent side loading. The small R dimension (0.2 mm) should be considered where edges interface with part surfaces.