Metric Center Dowel Punches for Heavy Load XNT DayTiN® Coating

Metric center dowel punches for heavy-load tool alignment are used to maintain repeatable positioning between mold halves and mating components, especially where high clamping force or frequent cycling can otherwise introduce alignment drift.

• Automotive and appliance die casting: In die casting tool sets, the heavy-load geometry supports stable centerline registration during repeated ejection and shot cycles. The XNT DayTiN® coating helps resist wear from sliding contact at the interface.
• Injection molding with long production runs: For large-part injection molding assemblies, these punches support consistent cavity alignment by providing a reliable guide entry. The available shank diameter D options (10–25 mm) and controlled point length support predictable engagement.
• High-cycle sub-assemblies: When rapid parting/closing movement increases fretting risk, the wear-focused coating and configurable tip shapes help maintain fit stability over time.

Choose this variant when you need heavy-load alignment performance and improved wear resistance at the dowel engagement region.

The provided specifications focus on dimensional compatibility and an XNT DayTiN® surface coating, which is intended to improve wear resistance under molding/die casting contact conditions. However, no underlying steel grade, bulk hardness (HRC), or specific heat-treatment state (e.g., quench & temper, nitriding) is included in the input data.

For engineers comparing options, coating characteristics typically trade wear resistance for cost and, in some cases, slight changes in effective surface friction or sizing due to coating thickness. Without the base material grade and heat-treatment parameters, hardness/toughness comparisons between steel variants cannot be verified from the supplied information.

• Coating: XNT DayTiN® for improved wear performance
• Heat treatment: Not specified in the provided data
• Hardness (HRC): Not specified in the provided data

Confirm the substrate grade and heat-treatment through the product documentation set if you require HRC verification for your tool stress profile.

Select dimensions by matching the dowel punch to the mating bore/core pocket in your mold assembly so engagement is consistent across cycles.

• Shank diameter (D): Choose one of the available sizes D = 10, 13, 16, 20, 25 mm to match the receiving hole size in the moving/immobile half according to your design drawings.
• Overall length (L): Use L = 80–130 mm to ensure adequate guidance length for your mold thickness and parting stroke.
• Point length (L1): Select from 13–19 mm or 19–25 mm based on the desired initial contact zone and the available lead-in depth.
• Tip shape: Pick H, J, K, L, N, O, R, V, X, Y, or Z to suit the entry geometry used in your dowel pocket and to control how the punch starts alignment.

Control fit by ensuring your dowel bore clearance/interference design accounts for the XNT DayTiN® coating surface. Tolerance values are not provided in the input data, so use your internal GD&T and supplier tolerance sheet when finalizing hole/punch mating.