JIS Standard Steel Jector Punches Single-Stepped HW Coating

These JIS standard jector punches are used in injection mold tooling and precision stamping systems where a controlled ejection force and repeatable alignment are required. The single-stepped shank is intended to seat consistently in standard jector punch blocks, helping maintain punch-to-block positioning during cycling.

• Automotive and consumer electronics tooling: In multi-cavity molds or fine-pitch progressive stamping dies, the HW-coated surface supports stable insertion and improved wear where punches experience frequent contact against guide bushings and ejector passages.
• Medical device housings & precision molded parts: The stable mounting geometry helps reduce dimensional drift over time, supporting consistent punching of small features with defined tip profiles (round, rectangle, oblong, double-flatted round, and radius rectangle).
• Spring-reinforced jector configurations: When used in spring reinforced jector tool setups, the shank design supports accurate engagement while the HW coating improves resistance to abrasive wear.

This product is described as a JIS Standard Steel jector punch made from powdered high-speed steel with a HW coating for punch tooling applications. Powdered HSS manufacturing provides a refined microstructure, supporting high hardness and improved wear resistance compared with conventional steels.

• Coating function (HW): The HW surface protection is intended to reduce wear during insertion and repeated contact, improving service life in guided punch environments.
• Hardness & wear/toughness balance: While specific HRC values are not provided in the input data, the typical HSS + wear-coating approach prioritizes wear resistance. That can trade off against impact toughness if used in highly shock-loaded or misaligned setups—proper guidance and fit are important.
• Heat treatment state: The input specifies powdered HSS but does not list an exact heat-treatment condition (e.g., quench & temper, nitriding). When specifying, confirm the supplier’s standard hardening process for the JIS grade.

Select the jector punch size by matching the shank diameter, tip geometry, and overall lengths to the jector punch block and cavity/core requirement. The shank diameter D is available from 4–25 mm with tolerance +0.005/0 and m5, so choose D to fit the block bore/guide with the intended clearance.

• Choose shank diameter (D): Pick the D that corresponds to your jector punch block seating and guide alignment needs, accounting for the given tolerance (m5 / +0.005/0).
• Select tip profile and tip dimensions: Tip shape can be Round, Rectangle, Oblong, Double Flatted Round, or Radius Rectangle. Tip-related dimensions include P = 1–18 mm and W = 1–6 mm, with tip corner radius R = 0.15 mm.
• Match lengths: Head/tip length options include B (Tip length) = L or S, and overall L offers ranges such as 50–80, 50–100, 60–100, 40–80, 40–100 and 50–80 (as listed). Use LC (33–74 mm) and LCT/LMT alteration ranges (33–74 mm) to confirm the intended total length adjustment and assembly stack-up.