4" discharger 4" Suction. Lister engine . Power Max.: 29.5 kW (40.109 hp) Min.: 15 kW (20.394 hp) Rotational speed 1,500 rpm, 1,800 rpm, 3,000 rpm, 3,600 rpm (9,424.78 rad.min-1, 11,309.73 rad.min-1, 18,849.56 rad.min-1, 22,619.47 rad.min-