axes axles for elevating conveyer

our factory produce the axes and axles for hoisting machine travelling hoist winding machine digger lift shaft elevating conveyer winding engine hoisting gear , hoister ; elevater ; 1.The axes come with high-quality alloy structural steel 42CrMo, 2.During the heat treatment process, firstly the workpiece do quenching and high temperature tempering, then do Surface Hardening; thus, to ensure the internal axes more impact resistance, anti-fatigue and surface with wear-resisting property (surface quenching reached a depth of over 3mm, the hardness up to HRC58-63) 3.Operational life span: 30,000 hours or more