RX Coating Center Dowel Punches for Heavy Load

This heavy-load center dowel punch is used in precision die sets where repeatable alignment and stable punching force are critical. The integrated dowel hole geometry supports accurate positioning through assembly, helping reduce misalignment-driven wear during long production runs.

• Industrial blanking/forming dies: Suitable for forming operations that cycle under high stress; the robust center design maintains consistent punch guidance and repeatability.
• Automotive-grade connector and bracket tooling: Used for ejector/punching workflows in multi-station tooling, where tight alignment helps preserve dimensional stability across cavities.
• High-cycle ejection tooling for machinery: Works well with standard or spring-and-pin reinforced variants when additional retention and impact resistance are required.

The RX coating variant is selected to improve wear resistance at the contact and guide interfaces, supporting longer service life in demanding cycles.

The provided series data specifies RX coating on the center dowel punches, which is selected to improve wear resistance in high-contact die operations. While the exact steel grade and HRC hardness are not listed in the input, the coating’s primary function is to reduce friction and abrasion at the punch/guide surfaces.

• Heat treatment state: Not specified in the supplied parameters; material hardness and tempering level must be confirmed from the product datasheet before committing to a wear/toughness target.
• Wear vs. toughness trade-off: For heavy-load punching, strong substrate toughness is typically required to resist chipping, while the RX coating improves surface durability. Without substrate hardness data, final selection should be validated against expected impact load and cycle count.

If alternative material options exist for the series, compare them by checking the specified steel grade, final hardness (HRC), and coating thickness/adhesion requirements.

Select the center dowel punch dimensions by matching the shank and tip geometry to the punch holder, guide spacing, and die interface requirements. The series supports D (shank diameter) = 10 ~ 45 mm, P (tip dimension) = 5 ~ 35 mm, and R (tip corner radius) = 0.15 mm (as listed), enabling selection across a broad range of heavy-load stations.

• Tip length / B: Choose B = L or S to match the available stroke and guide engagement length inside the die set.
• Overall length: Select L = 60~130, 70~130, 60~100, or 70~100 mm, then verify the LC (full length change) = 47~129.9 up to 54~129.9 mm (depending on the chosen configuration).
• Tip plan dimensions: Confirm W (tip dimension) = 5 ~ 9 mm and the required tip shape (round/rectangle/oblong/double-flatted round/radius rectangle).

Check that the selected D and tip dimensions provide the intended clearance/fit in the die block and punch guide; tolerances are not provided in the input, so final tolerancing should follow your die design standards and supplier drawings.