Ball Lock Ejector Punches Heavy Duty Metric

These heavy-duty metric ball-lock ejector punches are designed for reliable part ejection and stable tool cycling in die spotting, forming, and ejection operations. The ball-lock point provides consistent locking behavior, helping maintain secure retention during repeated press strokes—important when ejector motion and alignment directly affect part release quality.

• Automotive and industrial stamping dies: Use the metric shank diameters (D = 13–40 mm) and fixed overall length (L = 80–100 mm) to match common die layouts for dependable ejection over long production runs.
• High-wear forming stations: The XN DayTride coating supports improved wear resistance at sliding contact areas, reducing punch point degradation under frequent cycling.
• Complex die sets with frequent die maintenance: Ball-lock retention supports repeatable tool performance, helping minimize variation between cycles during setup changes.

Engineered metric dimensions and the selectable tip shapes (H, J, K, L, N, O, R, V, X, Y, Z) let designers tune the punch point geometry to the part and cavity surface contact needs.

The provided specifications describe a heavy-duty ejector punch variant with an XN DayTride coating intended to improve wear resistance for die applications. While the underlying base steel grade and heat treatment hardness are not listed in the available data, the coating is the key material feature specified for production durability.

• Coating function: XN DayTride is applied to the working surfaces to enhance wear resistance during repeated sliding/impact contact in stamping or forming tooling.
• Heat treatment state: Not specified in the provided dataset; hardness (HRC) and quench-and-temper/nitriding parameters are not available for this product detail.
• Trade-off: Coatings typically prioritize wear performance; base steel toughness is still critical, but its value cannot be confirmed from the current data.

When selecting alternatives, compare both the coating approach (e.g., XN DayTride vs. other surface treatments) and the base steel + heat treatment hardness—however those base material details are not provided here.

To select the correct ball-lock ejector punch size, start by matching the fixed overall length and point length to your die geometry: L = 80–100 mm and L1 (point length) = 19–30 mm. Then confirm the shank diameter D = 13, 16, 20, 25, 32, or 40 mm aligns with the punch bore and guide provisions in your metric die set.

• Determine point interface: Choose the tip shape (H, J, K, L, N, O, R, V, X, Y, Z) appropriate to the contact area on the part.
• Check key geometry ranges: Verify P for your chosen D (e.g., P = 13.1–32, 16.1–38, 20.1–40, 25.1–44, 32.1–50, 40.1–56) and W (1.57–34.73 mm).
• Confirm radii constraints: Validate R selection (0.2–16 up to 0.2–28 depending on configuration) to avoid edge interference.

Use metric dimensions to ensure predictable fit. Specific tolerance values are not provided in the dataset, so confirm tolerances against your punch bore spec and supplier drawings for the selected configuration.