Center Dowel Punches for Heavy Load Metric, XAN DayTAN™ Coating

Center dowel punches are used in injection molding and press tooling wherever tight dowel-hole alignment is required between a die/plate stack and the fixture that locates it. This heavy-load metric variant is designed to maintain stable center positioning through repeated cycles, reducing cumulative misalignment.

• Automotive connector and bracket tooling: Use the punch in die assemblies to lock the centerline of mating halves and maintain consistent cavity-to-cavity register during high-cycle production; the XAN DayTAN™ coated wear surface helps preserve accuracy as wear occurs.
• Medical device housing mold builds: In housings requiring precise parting-line consistency, the rigid dowel locating function supports repeatable alignment for thin-wall inserts and precision features; the coated exterior is suited for long service intervals in frequent clean/open cycles.
• General die sets and transfer fixtures: Select the appropriate tip shape and length to match point engagement requirements while keeping the shank diameter matched to dowel-hole sizing for stable centering.

The provided specification set does not include a specific steel grade, pre-hardened state, or hardness (HRC). Therefore, only coating- and fit-related engineering guidance can be stated from the input data: the punch uses XAN DayTAN™ coating, intended to improve wear resistance at the locating/working surface in die assemblies.

• Coating function: XAN DayTAN™ is specified here to support longer service life under rubbing/impact wear while maintaining center alignment during repeated operations.
• Material/heat treatment selection: For optimal toughness vs. wear performance, verify the base steel grade and its heat treatment (e.g., quenched & tempered or nitrided) with the supplier documentation for this series.
• Trade-off: In general, higher wear resistance steels/heat treatments can reduce toughness if over-hardened; select hardness based on cycle count, misalignment tolerance, and expected abrasive wear.

Select dimensions by matching the punch shank to the dowel-hole size and by aligning the point length to the required engagement depth in your die/fixture. This series provides D (shank diameter) in 10, 13, 16, 20, 25 mm, with a fixed L (overall length) of 80–130 mm.

• Match D to hole diameter: Choose the same diameter class (10/13/16/20/25 mm) as the corresponding dowel-hole in the mating components to avoid clearance that can reduce center alignment.
• Choose point length L1: Point length is variable at 13–19 mm or 19–25 mm. Use the shorter range for limited engagement and the longer range where deeper guiding is needed for stable centering.
• Tip geometry selection: Pick the tip shape (H, J, K, L, N, O, R, V, X, Y, Z) to suit your punch-point contact/entry requirements.
• Tolerance/fit check: P (4–18 mm), W (4–6 mm), and R (point radius variants up to 0.2–12.5 mm) affect contact area and guidance behavior; confirm these against your mating counterbore/edge condition and the assembly’s allowable alignment tolerance.