The BS 50-4s four-cycle rammer features a Wacker Neuson WM 100 engine, delivering a 10 percent increase in power. It hits at 660 blows per minute and has an amplitude (stroke) of 1.56 inches. The unit features an easier start because of its purge bulb carburetor, which allows operators to purge air out of the carburetor and replace it with fuel. The rammer has an integral ignition and fuel shut-off in the throttle.
