Ball Lock Ejector Punches - Heavy Duty, Inch (XCN Coating)

Ball lock ejector punches with an inch shank and XCN coating are used in injection mold tooling where stable punch retention and dependable ejection are critical over high cycle counts.

• Automotive and appliance components: In molds with deeper cavities or frequent ejection cycles, the ball lock style tip helps maintain seating stability, reducing micro-movement that can degrade ejection consistency.
• Thick-wall housings and structural parts: The heavy duty construction supports repeated punch loads, while the XCN coating is selected to improve wear resistance in toolmaking and production environments.
• General inch-based production tooling: The inch configuration aligns with common toolroom and inch-standard mold builds, simplifying compatibility with existing ejector systems.

This variant’s combination of ball-lock retention and wear-focused coating makes it well suited for long-running production molds that demand consistent ejection performance.

This product is offered with M2 or PS4 steel options, selected to balance wear resistance and toughness for ejector service.

• M2 (typical tool steel approach): known for high wear resistance, generally preferred where abrasion and edge durability matter; toughness can be lower than more ductile steels if the heat treatment is pushed hard.
• PS4 (alternative option): typically chosen as a cost/performance balance for tool use, offering good performance for punches that require stable service under repeated cycling.

Regardless of grade selection, ball lock punches are manufactured from pre-machined bar stock and finish-machined to the required shank and point dimensions, then heat treated to the specified hardness level for ejector duty. For wear-focused applications, the XCN coating supports improved surface durability, reducing groove and galling risk during production.

To select the correct ball lock ejector punch, match the tool’s functional interface first: D (shank diameter), then the point length(s) and tip shape code, and finally the coating/grade.

• Shank diameter (D): choose a diameter in the 37–125 in range based on the ejector plate/guide bore clearance and the load path. Ensure the punch slides without binding while retaining alignment.
• Point/tip length (L and coded variants): standard coded inch length options range from 250–500, 250–600, 275–600, or 300–600. If your cavity depth or ejector travel requires more engagement, select the longer coded range (up to 600).
• Geometry details: use the required tip shape (H, J, K, L, N, O, R, V, X, Y, Z) to fit the mating pocket/contact area.

Confirm tolerance stack-up against the mold’s ejector system clearances, especially around the ball lock seating surfaces, to maintain retention without excessive friction.