Extended Range Ejector Punches (Metric) - XCD Coating

Extended-range ejector punches are used in injection and die tooling when the ejector needs reliable reach through deeper tooling sections while maintaining guidance and positional stability. This specific variant’s XCD coating supports improved wear resistance at the punch surface, helping preserve smooth ejection over high-cycle production.

• Automotive and appliance stamping/die sets: The extended stroke length (L = 63 to 100 mm) supports ejection from deep cavities, while selectable tip shapes (H, J, K, N, O, R, V, X, Y, Z) allow tuning for part geometry and ejector contact area.
• Precision forming and close-space forming: The punch geometry supports stable guidance during repeated cycles; the protective coating helps reduce abrasive wear where the punch slides against surrounding components.
• Die casting and molded insert assemblies: Use the extended reach to extract parts after solidification; the abrasion-resistant surface finish is especially helpful when the punch repeatedly traverses tight clearance regions.

The provided specifications identify this as an XCD-coated extended-range ejector punch, but they do not list the underlying steel grade or heat-treatment condition. In practice, XCD coatings are selected to enhance surface wear performance, which improves punch longevity under reciprocating contact and debris exposure typical in deep cavity ejection.

• Heat treatment: Not specified in the provided data (no hardness or quench/temper state listed).
• Wear vs. toughness trade-off: Coatings primarily improve wear resistance and surface durability; the base steel’s toughness and core hardness then control resistance to bending and chipping under side load.
• Material comparison: No alternative steel grades are supplied for comparison; selection should be confirmed with the steel grade and target hardness requirement for your cavity pressure and ejection force profile.

Recommendation: Verify the base steel grade and target hardness with your tooling vendor documentation to ensure compatibility with your cycle rate and shock loading.

To select the correct dimensions, first match the overall reach and working point to the cavity/core layout. This punch series provides a fixed L1 (point length) of 25 to 30 mm and a fixed overall L of 63 to 100 mm, which together determine how deep the punch can extend for part ejection.

• Choose shank diameter (D): Select from 40, 45, 50, 56, or 63 mm to match the ejector bore and guidance system clearances.
• Match the geometry windows: Use the available P and W dimension ranges (e.g., P: 20–39.95, 25–44.95, 30–49.95, 35–55.95, 40–62.95; W: 8–39.95, 9–44.95, 10–49.95, 11–55.95, 12–62.95) to align the point/contact region with the part and clearance envelope.
• Confirm tip radius (R): Pick from 0.2–19.975, 0.2–22.475, 0.2–24.975, 0.2–27.975, or 0.2–31.475 depending on contact stress and corner clearance needs.

Because tolerances are not specified in the provided data, confirm your desired fit (guidance clearance in the ejector housing) and coordinate with the drawing release for final manufacturing tolerance values.