M2 Steel Ball Lock Ejector Punches (Heavy Duty, Metric)

These heavy-duty metric ball lock ejector punches are used in press tooling where the punch-point must stay positively retained for reliable ejection. The ball-lock head design helps maintain stable point positioning during repeated stop-start cycles, reducing the risk of misalignment at the ejector interface.

• Metalworking blanking/forming: Ideal for ejecting formed parts from dies when high retention and consistent release are required; the M2-steel build supports demanding cycle rates.
• High-load ejector arrays: When multiple ejector points are distributed across a die, the controlled geometry helps support repeatable ejection behavior and dimensional consistency across the tool.
• Wear-sensitive tooling: CRN coating options (available upon request) can be selected to improve wear resistance where friction and sliding contact at the punch point are expected.

This variant is offered with M2 steel (and alternatively PS4, depending on configuration). M2 is a high-speed steel grade typically selected for its strong wear resistance and ability to maintain hardness under tool-operating temperatures.

• M2 steel: commonly supplied in a quenched & tempered condition appropriate for punch applications; expect a hardness range around the mid-to-high HRC levels typical for M2 tool steel, balancing wear resistance with toughness.
• Wear vs. toughness trade-off: higher hardness improves point wear life, while toughness controls the risk of chipping under shock loads in forming/blanking.
• PS4 comparison: PS4 is positioned as an alternative material option; select based on your expected wear/friction conditions and desired toughness balance.

For specific coating state and property confirmation (e.g., CRN), request a quote for the recommended surface option.

Select the ejector punch size by matching the shank diameter (D) and overall length (L) to the die shoe and ejector system stack-up, then confirm the point and lock dimensions for stable retention.

• Shank diameter D: choose from 10 ~ 40 mm to fit the corresponding ejector bore/guide land in your tooling.
• Overall length L: available ranges include 63 ~ 100, 63 ~ 125, 71 ~ 125, and 80 ~ 125 mm; pick the range that covers your required stroke/clearance to prevent bottoming.
• Point length L1: available ranges include 10 ~ 19, 13 ~ 25, and 19 ~ 30 mm; match L1 to the cavity/core engagement depth needed for punch-point release.
• Point dimensions: the P and W dimensions are provided as P = 1.5 ~ 12 mm and W = 1.5 ~ 14 mm; tip shape options are H, J, K, L, N, O, R, V, X, Y, Z and must match the die point geometry.

Use the configured variant’s geometry to ensure proper lock-up and alignment; verify fit against your ejector bore specification, especially around the D diameter and the ball-lock interface.