DIN Standard Hardened Steel Ball Lock Ejector Punches - Light Duty

This light-duty ball lock ejector punch is used inside injection mold tooling to provide positive ejection for parts that don’t require heavy stripping forces. The CRN-coated, hardened steel construction helps maintain stable punch alignment and surface integrity under repeated cycles.

• Light-load blanking and punching for inch-based tooling: the fixed-code length options (250–450) and the shank diameter range (0.375–1.000 in) support consistent fit in die sets.
• Automotive and appliance housings with moderate ejection demand: the point-larger-than-shank geometry improves loading stability and part contact so the mechanism can return reliably during production.
• Electronics enclosures and brackets requiring fine alignment: select tip shape (H, J, K, L, N, O, R, V, X, Y, Z) to match cavity/core engagement while the CRN coating improves abrasion resistance for longer run times.

The ejector punches are manufactured from hardened steel to support precision blanking and punching in mold tooling. A CRN coating is applied to improve surface durability, targeting abrasion and wear resistance during repeated ejection cycles.

• Wear vs. toughness trade-off: hardened steel improves resistance to deformation and wear at the working interface, while the coating enhances top-surface durability without changing the core’s need for sufficient toughness.
• Heat treatment state: supplied as a hardened steel component intended for tooling environments where dimensional stability under load is required.
• Coating relevance: compared with uncoated hardened punches, the CRN layer typically provides better abrasion resistance, helping preserve fit and alignment in high-cycle production.

Correct sizing starts by matching the shank diameter D (0.3750, 0.5000, 0.6250, 0.7500, 0.8750, 1.0000 in) to the ejector bore or guide feature in your die set. Then choose the coded length L (250–450) to achieve the required protrusion and engagement depth while maintaining safe clearance at shutoff.

• Tip shape selection: pick from H, J, K, L, N, O, R, V, X, Y, Z to align with your cavity/core contact geometry and ball lock engagement profile.
• Profile/engagement dimensions: use the available P range (0.376–0.875, 0.501–1.25, 0.626–1.5, 0.751–1.5, 0.876–1.75, 1.001–1.75 in) and W (0.062–0.867 in) to match the stop position and working footprint.
• R dimension: choose the appropriate corner radius R range (0.007–0.4375 up to 0.007–0.875 in) to control contact pressure and reduce localized wear.

Because these are precision mold components, verify mechanical fit against your assembly tolerance and consider coating thickness effects when assessing clearance.