Light Duty XCDP Coated Ball Lock Ejector Punches

Light-duty ball lock ejector punches are used in injection mold tooling where repeatable cavity forming and clean part release are needed, but loads are moderate. The ball-lock point geometry provides stable forming contact because the point is larger than the shank, reducing sensitivity to minor misalignment during cycling.

Common scenarios include consumer electronics housings and light-duty die work for thin-walled components, where consistent ejection helps minimize cosmetic defects and sticking. The XCDP coating variant is suited to these applications because it is intended to improve wear resistance and maintain steady punch performance across production runs.

Another scenario is serviceable tooling setups with multiple point shape options (X/R/K/O/H/L/J/N/V/Y/Z) to match different cavity textures and ejection requirements. Engineers can select the appropriate tip shape alongside the defined point length range (L1: 19–30 mm) to tune contact area and forming behavior.

• Stable forming contact for light-duty cavity tooling due to point > shank
• XCDP coating supports abrasion resistance over repeated cycles
• Multiple tip shapes enable process-matched ejection geometry

The provided configuration is specified by point and shank dimensions and an XCDP surface coating, which is the primary material attribute called out for performance. The coating is intended to increase wear resistance and help preserve consistent punch geometry during continuous die use.

Because no steel grade, heat-treatment state, or measured hardness (HRC) is included in the input data, hardness and toughness values cannot be stated accurately for this specific SKU. In general mold practice, ejector punches are made from tool steels that balance wear resistance and toughness; however, this page must only reflect the stated product information.

• XCDP coating: designed to resist abrasion and support stable performance
• Material selection trade-off (general): higher wear resistance often reduces toughness; the correct balance depends on steel grade and heat treatment
• Heat treatment details: not specified in the provided metadata

Start sizing by selecting the D (shank diameter) from the available options: 13, 16, 20, 25, or 32 mm. Then set the overall punch length L to the fixed range 80–100 mm based on your ejector plate stack-up and leader system clearance.

The ball-lock contact is defined by the point length L1 (19–30 mm, fixed) and the selected tip shape (H, J, K, L, N, O, R, V, X, Y, Z). Choose the tip geometry to match the cavity forming and ejection contact requirements for your part surface.

Use P and W (variable ranges) to confirm that the point profile and locking features fit the receiving pocket in your mold layout. Finally, verify R (0.2–16 up to 0.2–25 depending on the configured option) so the radius matches the intended contact transition and avoids stress concentration.

• Match D to ejector guidance and interference limits in the cavity/core
• Set L to clear the press travel and ejector mechanism
• Confirm L1 and tip shape to control forming contact length