Metric Point Larger than Shank Ball Lock Ejector Punches Heavy Duty

This heavy-duty metric ball-lock ejector punch point is used in injection mold tooling and progressive die systems where the ejector must maintain stable ball-lock retention under repeated stroke cycles.

• Automotive and appliance housings: In molds requiring long ejector runs, the oversized point geometry supports consistent ball-lock engagement, reducing the risk of partial lock during ejection.
• Medical device housings and closures: The point design supports repeatable fit within standardized die tooling, helping maintain dimensional consistency for tight assembly requirements.
• High-cycle precision stamping: The XNAD coated surface is intended to resist wear, helping sustain performance when ejector components see abrasive or high-load contact.

Choose this variant when your metric ejector system needs reliable locking and dependable ejection, and when wear resistance is critical for long production runs.

The provided specifications for this item focus on geometry and coating, not a specific steel grade or quantified hardness (HRC). Therefore, material-state details such as exact heat treatment (e.g., quench & temper, nitriding) and the corresponding HRC cannot be stated from the given data.

What is supported is the XNAD coated surface. In ejector punch applications, this coating is selected to improve surface durability and help resist wear in high-cycle operations, balancing friction control at the lock and contact areas against the need for stable engagement.

• Wear resistance: Enhanced by the XNAD coating for longer service life under repeated strokes.
• Toughness trade-off: Not specified; verify base steel toughness and coating thickness compatibility for your load and duty cycle.

If you require a specific steel grade or HRC target for your mold design standard, share your requirement so we can confirm the correct material/heat-treatment configuration.

Correct selection is primarily driven by matching the ejector system’s shank diameter and overall point geometry to your ball-lock housing and die/ejector plate requirements.

• Shank diameter (D): Select from 13, 16, 20, 25, 32, 40 mm to match the mating bore and standardized tooling dimensions of your metric punch system.
• Point length (L1): Choose 19 to 30 mm based on required engagement depth for stable ball-lock retention.
• Total length (L): Use 80 to 100 mm to ensure proper stroke clearance and correct protrusion through the ejector plate.
• Point geometry fine-tuning: Select tip shape H, J, K, L, N, O, R, V, X, Y, Z and match P (13.1–56 mm by size group), W (1.57–34.73 mm), and R (0.2–28 mm) to your cavity/core edge and mating contact profile.

Confirm fit and locking function with your supplier’s standard clearances; since tolerances are not provided here, rely on your die manufacturer’s established punch-to-ball-lock seating tolerances.