HX Coating Ejector Punches with Locating Dowel Holes

HX-coated ejector punches with locating dowel holes are used in punch-and-die tooling where repeatable positioning and controlled wear directly affect part quality. The locating-dowel hole geometry helps stabilize punch location during die machining and build-up, making these punches suitable for automotive and appliance stamping die sets that cycle high volumes and require tight alignment.

They are also well suited for high-precision connector and terminal forming operations, where consistent punch tip condition supports stable forming forces and reduces variation from cycle to cycle. The HX coating improves surface durability in repetitive contact conditions, while the hardened punch-tip design supports long production runs.

• Die set machining: dowel-hole location aids accurate assembly and rework resistance.
• Progressive stamping: coating and tip wear resistance help maintain output consistency.
• Multi-cavity builds: geometry repeatability supports uniform forming across tool stations.

The provided series description specifies hardened steel punch tips with an HX coating to improve wear resistance and output stability. While the exact steel grade and HRC value are not listed in the input data, the design intent is clear: a hardened punch tip to resist abrasive and adhesive wear during repeated striking.

• HX coating: applied to the punch working surface to enhance durability and reduce wear in repetitive cycles.
• Heat-treated punch body/tip: described as hardened steel, balancing wear resistance with adequate toughness for punch-and-die service.
• Manufacturing focus: machining-grade punch geometry for repeatability, plus coating for the wear surface.

If you are comparing variants, select based on duty cycle and contact severity: HX-coated hardened tips are generally chosen over uncoated or less durable surfaces when tooling durability and stable forming output are priorities.

Select an ejector punch configuration by matching the required shank diameter (D), tip dimensions (P / W / B), and overall length so the punch fully interfaces with your cavity/core and ejector stroke constraints.

• Shank diameter (D): choose within 10 ~ 45 mm to match the guide bore or surrounding tooling clearance/fit.
• Tip dimension (P): available from 2.5 ~ 35 mm to meet the functional punching/contact footprint.
• Tip width (W): available from 2.5 ~ 9 mm; confirm this aligns with die cut or forming geometry.
• Tip length / B: select based on L/S/X variant that provides the needed effective engagement.

For length matching, use L (50~150, 60~150, 40~150, 70~150, 80~150 mm) and the stated LC (25~149.9, 27~149.9, 37~149.9, 42~149.9, 32~149.9) and tip change ranges PC (1.25~17.5 mm), WC (1.25~4.5 mm) to ensure remaining travel and safe stack-up. The input specifies dimensional ranges; treat them as configuration-dependent—verify with your cavity/core drawing to confirm functional clearance and assembly tolerance around the locating dowel holes.