Ball Lock Ejector Punches Light Duty X-Shape

Ball lock ejector punches are used in injection mold tooling to drive parts off cavities with controlled travel and positive engagement. This light-duty X-shape tip variant is well-suited for metric die sets where stable punch positioning and repeatable part release are required.

• Automotive and appliance housings: Ideal for small-to-medium molded covers and brackets using metric tooling blocks, where consistent ejection force helps prevent part scuffing.
• Electronics enclosures and connector subassemblies: The secure ball-lock style engagement reduces punch-to-die movement, supporting reliable ejection across multi-cavity layouts.
• Medical device housings (non-sterile components): Use where dimensional stability and predictable release cycles matter; the durable tip geometry supports smooth operation under regular production duty.

Choose this configuration when your design needs dependable locking during cycles and smooth ejection behavior within light-duty production conditions.

This series is offered in two tool steels: M2 or PS4, selected to balance wear resistance and toughness for light-duty ejection features. Both options support durable point geometry for stable punch contact and long cycle life in press operations.

• M2 steel: Typically supplied as a high-speed steel; in tool applications it is known for high wear resistance and good hot hardness. After hardening, it provides a strong resistance-to-edge wear, with the usual trade-off of slightly reduced toughness compared with softer steels.
• PS4: Commonly selected for punch components requiring robust machining and reliable wear performance. It is generally chosen when a balance of toughness and wear resistance is preferred for production.

Exact hardness and heat-treatment details are dependent on the supplier’s processing route for the selected steel grade; both grades are hardened for service as ejector punches.

Select ball lock ejector punches by matching the shank diameter (D), overall length (L), and point length (L1) to your core/cavity tooling geometry and available stroke space. For this series, D is 6–38 mm, and L is offered in ranges such as 63–100 mm, 71–100 mm, and 80–100 mm.

• Match L1 (point length) to the expected engagement depth at the moment of ejection: available ranges include 10–13, 10–19, 13–25, and 19–30 mm.
• Verify P and W (both 1.4–12 mm and 1.4–14 mm respectively by variant) to ensure the X-shaped tip geometry clears the cavity features and aligns correctly with the locking pocket.
• Consider dimensional fit: the stated R = 0.2 mm applies to the tip edge radius; maintain appropriate clearance in die inserts to avoid interference.

This series uses fixed variant dimensions per code (e.g., J group, tip and steel), so choose the specific configuration that fits your mold layout rather than mixing ranges.