DAYTON Standard Ball Lock Regular Ejector Punches Heavy Duty, X-Shaped Tip

These heavy-duty ball-lock regular ejector punches with an X-shaped tip are used inside punch and die sets where reliable part release is critical during high-cycle presses. The ball-lock retention helps keep the punch anchored under repeated loading, supporting consistent ejection performance across the tool life.

• Automotive and appliance stamping: Suitable for ejecting stamped components from die cavities after blanking or forming, where stable penetration and positive part release reduce scuffing and sticking.
• Multi-step forming dies: The X-shaped tip geometry improves contact uniformity during ejection strokes, helping manage variability in part contours and ejector load distribution.
• High-wear production tools: The heavy-duty hardened steel options support abrasive and sliding conditions typical of continuous manufacturing.

Select this variant when you need dependable retention plus an ejector tip designed to promote stable part separation in demanding tooling environments.

This series is offered in M2 and PS4 material options, each selected to balance wear resistance and toughness for ejector punch service. In the mold industry, M2 is commonly referenced as an AISI M2 high-speed steel grade, noted for strong wear resistance under abrasive conditions.

• M2: Typically used when maximum wear resistance and consistent performance are required in high-cycle ejection.
• PS4: Selected as an alternative hardened steel option to support tool life under forming and punching environments.

Hardness is provided by the selected material configuration (hardened steel options are referenced in the product description), and the final hardness will reflect the manufacturer’s heat-treatment process for the chosen grade. In practice, higher hardness improves wear resistance but can reduce toughness margin—so match grade to expected ejection forces and any side-loading risk in the tool.

To size the correct ejector punch, start with the shank diameter (D) requirement. This series covers D = 37 ~ 125 in and uses the configured tip shape (including X) to match your ejector contact needs.

Next, choose the standard point length & L coded range: 250 ~ 600, 250 ~ 700, 275 ~ 700, or 300 ~ 700, depending on the required protrusion and stroke clearance. The series also provides coded length options tied to point length variations (B & L and C & L), with additional variants listed for D point length & L (e.g., 275 ~ 700, 300 ~ 700).

• Match cavity/core depth: set the point length so the ejector contacts the part without bottoming in the return stroke.
• Fit/tolerance considerations: use the configured P (0.05 ~ 1), W (0.05 ~ 0.5), and R (0.007) dimensions to maintain the designed fit in the punch guide bushing and ensure stable ball-lock engagement.