Metric Ball Lock Ejector Punch Blanks - Heavy Duty Point Larger than Shank X-Tip

These metric ball lock ejector punch blanks are designed for use in heavy-duty injection and press die tooling where stable punch contact and repeatable ejection are critical. The point larger than shank geometry helps improve positioning reliability, reducing the chance of inconsistent engagement during cycling.

• Automotive connector and bracket dies: Use the X-shaped tip point to support consistent forming contact under high-cycle production and mixed load conditions.
• Appliance and housings: The heavy-duty blank construction is suited for long runs where ejector force delivery must remain consistent as wear accumulates at the working end.
• General manufacturing transfer/blanking stations: The metric series sizing aligns with standard die setup practices, allowing selection of an appropriate shank diameter (D) and working point length (L1) for reliable ejection.

Choose the variant with the X-shaped tip when you need robust, repeatable contact and improved centering behavior compared with smaller-tip designs.

The provided metadata does not specify a steel grade or heat-treatment condition for this ball lock ejector punch blank. Material performance should therefore be verified in the supplier’s technical documentation for the exact variant used (including heat treatment and hardness target).

• Heat treatment: Confirm whether the blank is pre-hardened, quenched & tempered, or surface-treated (e.g., nitriding) to match your wear and impact requirements.
• Hardness & wear: For ejector punches, higher hardness typically improves abrasion resistance at the point; however, it can reduce toughness if impact loads are significant.
• Toughness trade-off: Select the heat-treatment state that balances point wear resistance with sufficient toughness to avoid chipping during misalignment or part-variation cycles.
• Material comparison: If multiple steels are offered for this series, compare wear resistance and toughness at the intended hardness (HRC) under your expected press/die conditions.

To ensure compatibility with your dies, match the exact material/heat treatment to your load profile and cycle rate.

Correct sizing is determined by matching the ejector system geometry to the die’s required engagement and stroke behavior. This series provides a fixed L1 (point length) of 19–30 mm and a fixed L (overall length) of 80–100 mm, while other key dimensions vary by shank diameter and punch type.

• Choose shank diameter D: Select from 13, 16, 20, 25, 32, 40 mm based on your ball-lock pocket and guide requirements.
• Verify point engagement using P and W: Use the available P ranges (e.g., 13.1–32, 16.1–38, 20.1–40, 25.1–44, 32.1–50, 40.1–56 mm) and W ranges (1.57–34.73 mm) to ensure the point larger than shank contacts the intended features without interference.
• Check tip radius R: Confirm R = 0.2–28 mm per the selected configuration to control stress concentration at the working edge.

Because tolerances and exact fit clearance are not included in the provided data, validate your press/die drawings for clearance around the ball-lock interface and ensure alignment during assembly. Dimensions marked variable are selectable per the series configuration; fixed L1 and L apply across the range.