Center Dowel Punches for Heavy Load - Metric, XNM Coating

These heavy-load center dowel punches are used in injection mold tooling where precise start location and repeatable dowel hole fit are critical under cyclical press forces.

• Automotive connector and sensor housings: employ the punches to stabilize alignment between mold halves during high-throughput cycles, reducing drift-related flash risks; the heavy-load geometry and XNM surface coating support durability across repeated actuations.
• Industrial electrical component molds: use the metric shank sizes to match common locating workflows for consistent center positioning of cores/cavities; the configurable tip shapes (H, J, K, L, N, O, R, V, X, Y, Z) help control the dowel interface for the intended hole fit.
• Appliance and consumer product molds: when wear at the locating interface is a concern, the XNM coating helps maintain surface stability throughout long production runs.

Select the appropriate shank diameter and point length combination to match the dowel hole depth and entry profile, enabling reliable center alignment during mold closure.

The provided configuration specifies an XNM coating for wear support during repeated press cycles. While the exact base steel grade and hardness (HRC) are not included in the provided data, the functional intent is clear: improve surface durability at the locating interface to resist fretting and abrasion.

• Coating role: XNM is used to enhance surface durability on the working point, helping maintain repeatable alignment over many cycles.
• Heat treatment: the heat treatment state (e.g., quenched & tempered, nitrided) and target hardness are not specified in the input; request the material certificate for HRC and treatment details.
• Wear vs. toughness trade-off: higher wear resistance coatings typically improve interface life but should be matched to your contact pressure and hole material to avoid coating edge damage.

To select the correct dimensions, match the punch shank and point features to the mold half locating hole geometry and the required insertion depth at mold closure.

• Choose D (shank diameter, mm): select from 10, 13, 16, 20, or 25 to fit the corresponding dowel hole diameter in your plate(s).
• Set the working engagement using L1 (point length, mm): use 13–19 or 19–25 based on your dowel hole depth and the desired centering contact length.
• Confirm overall length L (fixed, mm): use the specified range 80–130 to ensure it clears your mounting stack-up while maintaining proper alignment reach.
• Interface geometry control: tune fit with tip shapes (H, J, K, L, N, O, R, V, X, Y, Z) and the provided P (1.5–18) and W (1.5–6) dimensions, plus R (0.2 up to 12.5 depending on the selected R-dimension variant).

Because tolerance/fit values are not provided, verify your dowel hole-to-punch clearance and press contact pressure requirements in your standard locating spec.