hammer head connecting rod

The hammer head connecting rod for precision forging machines is the core transmission component linking the driving mechanism to the hammer head. It transmits power under high-frequency impact forging while guiding and positioning the hammer, directly determining forging accuracy and machine stability. Manufactured from forged 30CrNiMoV9 alloy structural steel, each rod undergoes quench-and-temper heat treatment, precision machining and surface nitriding. Key surfaces are finished to Ra 0.4 μm, meeting the strictest requirements of high-end forging equipment.

· Ra 0.4 μm mirror finish – precision grinding and lapping reduce friction and stress concentration, greatly improving fatigue life.

· High dimensional precision – key fits are machined to drawing tolerances and verified by CMM for concentricity, cylindricity and position accuracy.

· Heat treatment – quenched and tempered for an optimal balance of strength and toughness under high-frequency impact loads.

· Surface nitriding – a hard nitride layer (typically HV 600+, depending on material and process) provides wear resistance, fatigue resistance and anti-galling performance.

Applications include radial forging machines producing automotive half-shafts, oil drill pipes, gas cylinders, bearing rings and shaft forgings. Material: 30CrNiMoV9 alloy structural steel — high strength and toughness with good hardenability, quenched & tempered and surface nitrided. Custom machining, OEM and export packaging available.