Excavator Swing Gearbox category supplies swing reducer (slewing gearbox) assemblies for all major excavator brands. These planetary gear reducers multiply swing motor torque while reducing output speed, providing the smooth, powerful rotation needed for excavator upper structure slewing.
From compact swing gearboxes for mini-excavators to heavy-duty units for 30+ ton machines, we supply swing reducers for CAT, Hitachi, Komatsu, Doosan, Kobelco, Sany, and more. Each gearbox is built with quality bearings and gears for long service life. Also see our Excavator Final Drive and Excavator Center Joint categories.