Tapered Head Ejector Punches - HX Coating

Tapered head ejector punches are used in injection mold tooling where precise alignment directly impacts strip/part release and cutting stability. The HX-coated, powdered high-speed steel variant is suited for high-cycle metalworking environments that demand consistent performance over repeated strokes.

• Automotive and industrial connector molds: Use these tapered punches to keep ejector penetration and cutting edges aligned, reducing the risk of uneven scrap during high-volume runs.
• Metal insert overmolding and trimmed part operations: The tapered head geometry supports predictable engagement and controlled cutting wear when ejecting parts that require stable trimming or localized cutting action.
• General precision housings in metalworking workflows: The powdered high-speed steel construction helps maintain cutting performance across long service life, where dimensional consistency of the cutting zone is critical.

The HX coating contributes to stable cutting action and controlled tool wear, while the tapered head design supports reliable alignment for repeatable cutting and ejection results.

This product is made from powdered high-speed steel with an equivalency to SKH51 (common AISI M2/M2-class functional equivalence in practice). Powdered HSS manufacturing improves micro-uniformity, supporting higher wear resistance compared with conventional cast/atomized HSS variants.

• Wear resistance: HX coating is intended to promote stable cutting and help control tool wear during repeated ejector strokes.
• Toughness trade-off: High wear resistance steels typically trade off some impact toughness; proper alignment and controlled cutting conditions are important to avoid chipping at the tapered head edge.
• Heat treatment state: The provided data specifies material equivalency and coating, but does not include a stated hardness (HRC) or a specific heat-treatment process (e.g., quenched & tempered, nitriding). Selection should therefore be confirmed against incoming inspection or the supplier’s technical sheet for target HRC.

Compared across HSS options, this powdered SKH51-equivalent approach prioritizes tool life and cutting stability under continuous production duty.

To select the correct tapered head ejector punch, match the shank diameter (D) and the tip dimensions (P) to the corresponding bore support and functional cutting zone in the mold.

• Choose shank diameter: Select D from 8, 10, 13, 16, 20, 25 mm to fit your ejector housing or guided support. Ensure the ejector bore clearance supports smooth travel without excessive play.
• Choose tip length / size family: B is available as L or S. Use B to match the required engagement depth at the cutting/taper interface.
• Match tip dimension P: P ranges vary by size family: 3–7.99, 3–9.99, 6–12.99, 10–15.99, 13–19.99, 18–24.99 mm. Use the P range closest to your required cutting contact geometry.
• Set overall length: L is fixed at 60–100 mm, while LC is 37–99.9 mm. Confirm that LC provides the needed clearance for stripper/ejector stack-up.

For variants, PC (tip dimension change) is 1.5–2.99 up to 9–17.99 mm; use PC to fine-tune the effective tip geometry while maintaining the selected L and D.