DAYTON XCDP Coating Ball Lock Ejector Punches Heavy Duty

Ball lock ejector punches like this heavy-duty, XCDP-coated option are used in injection molding toolsets where reliable ejection and long service life are critical. The ball-lock geometry helps the punch stay firmly retained in the die insert, supporting stable stroke behavior and reducing the risk of loosening under repeated cycles.

• Automotive connector and electrical housing molds: Use in cavities that require consistent ejection of sprues or thin-walled parts. The XCDP coating improves wear resistance where sliding contact and abrasive particles can accelerate punch wear.
• Consumer electronics housings and clips: Suitable for tooling used for high-cadence production runs. The robust punch design supports repeatable ejection and helps maintain dimensional consistency at the point of contact.
• General die insert and toolroom punch/die assemblies: Works well for maintenance and die build-outs in a metric punch system, simplifying compatibility when standardizing components across assemblies.

The provided product data specifies an XCDP coating but does not list the underlying steel grade or a defined heat-treatment condition (e.g., quench & temper, nitriding). In practice, the engineering intent of an XCDP-coated punch is to raise surface wear resistance at the ejector contact area while maintaining adequate toughness for repeated tool cycles.

• Coating effect: Improved resistance to abrasion and localized wear, helping preserve punch performance over extended production.
• Hardness/toughness trade-off: Wear-focused coatings typically prioritize hardness and surface stability; careful alignment and lubrication still matter to avoid coating edge damage and to protect the tool steel beneath.
• Heat treatment: Since no heat-treatment state is specified in the data, select the base steel and tempering suitable for your load profile and ejection force requirements.

Select the ejector punch dimensions to match the ball lock pocket and ejector layout in your mold assembly. This series offers D (shank dia.) values of 13, 16, 20, 25, 32, and 40 mm, and a fixed overall L range of 80–100 mm.

• Choose shank diameter: Match D to the tooling bore/pocket and guiding features in your die insert.
• Match point length: Verify L1 (Point Length) within 19–30 mm to ensure correct protrusion through the cavity for part release.
• Confirm engagement geometry: Use the specified P ranges (e.g., 13.1–32, 16.1–38, 20.1–40, 25.1–44, 32.1–50, 40.1–56) and the W and R ranges (W: 1.57–34.73 mm; R: 0.2–28 mm depending on the variant) that correspond to your specific tip shape.
• Tolerance/fit: Keep tight control on the die insert bore and ball-lock pocket machining so the retention function is achieved without binding during ejection.