50Mn2 high manganese steel integral die forging, no joint welds, resistant to heavy pressure and impact, and resistant to high-frequency mine breakage and deformation and fracture.
Dual-shaft hole medium-frequency quenching HRC52-56, CNC precision boring inner hole, original factory assembly tolerances, pin bushing tight fit, no hole sweeping during long-term operation.
Thickened web + double-layer inner cavity reinforcement with full welding, original 1:1 mold opening for direct installation in place without the need for grinding or re-hole modification.
OEM number can be laser-stamped, Kobelco original blue-green paint, factory stock, 12-month warranty.