Ball Lock Ejector Punches Heavy Duty Inch XNP Coating

Ball lock ejector punches like this are used in injection mold tooling where reliable part release depends on positive punch retention during repeated press cycles. The ball lock interface is well-suited to mold bases that experience vibration or frequent shut/open cycles, because it helps maintain stable punch seating and prevents retention drift.

• Automotive and industrial connector molds: Use for ejection of thin-to-medium features where consistent stroke and punch alignment are critical; the heavy-duty configuration and XNP coating support long-run ejection cycles.
• Consumer goods and appliance housings: Suitable for high-cycle molding of textured or flat parts that require dependable ejector force transmission; the durable hardened steel supports repeatable operation.
• General-purpose die tooling: Works where punch surfaces face sliding wear from frequent contact and part pull-away; XNP coating helps improve wear resistance versus uncoated punches.

This series is offered in M2 or PS4 tool steel variants, paired with an XNP heavy-duty coating intended to improve wear resistance on ejection contact surfaces.

• M2: Commonly selected for higher wear resistance in cutting and punch applications; with a quench-and-temper heat treatment typical for tool steel, it balances hardness with toughness for sustained ejection duty.
• PS4: Often chosen for robust performance where dimensional stability and toughness are prioritized; it can be tailored by heat treatment to suit specific mold duty cycles.

Hardness and trade-offs: Higher surface hardness generally improves wear life during sliding ejection, while maintaining enough toughness is essential to avoid edge chipping on aggressive ejection geometries. Confirm the target HRC during procurement based on your supplier’s heat treatment certification for your chosen steel and coating stack.

Select ejector punch dimensions by matching the shank diameter, point length, and tip geometry to the core/cavity layout and the required ejection stroke. This series supports Tip Shape options: H, J, K, L, N, O, R, V, X, Y, Z, allowing you to align contact shape with your part geometry.

• Shank diameter (D, inch): choose within 37 ~ 125 to fit your ejector bore and maintain guidance.
• Length (coded inch): standard point length & L ranges include 250 ~ 500, 250 ~ 600, 275 ~ 600, and 300 ~ 600; pick the option that provides adequate reach through the mold stack for full ejection.
• Point length B/L/C/D (coded inch): select the range that matches your specific required tip-to-mold-surface distance.

Tolerance & fit: Ensure the ejector bore and ball-lock retention features are compatible with the selected shank diameter D; a proper fit prevents wobble and maintains consistent ejection contact under load.