Metric Ejector Punches with X Tip

Precision die and mold ejection guidance: These metric ejector punches with an X tip are used in progressive die tooling and transfer stations where the punch must enter and retract smoothly for consistent part release. The X-shaped point supports controlled contact, improving guidance during punch impact and reducing misalignment risk over high cycle counts.

• Automotive and appliance progressive tooling: In die sets with frequent ejector actuation, the standardized punch format helps match existing assembly layouts while maintaining repeatable positioning across production lines.
• Sheet metal forming dies: When ejection depends on stable punch penetration and clean withdrawal, the X tip geometry provides reliable contact characteristics for improved die-set performance.
• High-mix production runs: Engineers can select from multiple tip shapes (including X) and shank diameters (5–32 mm) to fit different cavity/core footprints and ejection strokes.

Why this variant fits: The X tip option is suited when controlled guidance at the point is critical to consistent ejection, and the metric standardized format supports easier selection for die-set integration.

Available materials for these metric ejector punches include M2, A2, and PS, selected to balance wear resistance, toughness, and manufacturing approach for different die environments. In hardened tooling applications, M2 is typically used where higher hardness and wear resistance are needed, while A2 is commonly chosen for strong toughness with good wear behavior.

• M2: High-speed steel family; generally offers excellent wear resistance with a hardness commonly around HRC ~ 60–62 after appropriate heat treatment.
• A2: Air-hardening tool steel; commonly hardened to HRC ~ 55–60, with a toughness/wear trade-off vs. very high wear grades.
• PS: Often selected when a specific performance/production requirement is prioritized; exact hardness and heat treatment state should be confirmed for your selected group.

Manufacturing and heat treatment: After machining to shank diameter (D) and length (L/L1), components are heat treated and then ground/finished to maintain guidance and fit in the die-set ejector system. Final hardness supports wear resistance at the point while controlling chipping risk under repeated impact.

Correct sizing starts with matching the shank diameter (D) and the overall geometry to your die-set ejector guide and pocket. Select D = 5–32 mm based on the ejector bushing/guide system bore that the punch will run in.

• Point length (L1): Choose from 13–19 mm, 19–25 mm, or 25–30 mm to control how far the point extends into the work area.
• Total length (L): Options include 40–80 mm, 40–100 mm, 50–100 mm, or 63–100 mm, matched to your stroke clearance and guide engagement depth.
• Cross dimensions: Use P = 1.3–16 mm, W = 1.6–10 mm, and radius R = 0.2 mm to ensure the point profile is compatible with the die cavity/core clearance.

Tolerance and fit: Because the punch provides guidance during impact, maintain consistent fit with the mating guide/bushing to limit side load. If multiple length ranges exist for the same D, prefer the shortest L that still achieves required engagement and ejection travel, while preserving clearance for the X tip during return.