1).wood chipper hydraulic feed 2).8 inch 40hp 3).colors: green,blue,yellow,red ... with diesel engine mobile wood chipper reduction box type, hydraulic feed type.modelrtwc-40rtwc-18max. dia. of feeding8”6”powerdiesel 480 ... (40hp,4 cylinder,2000rpm)diesel 1105(18hp,1 cylinder,2000rpm)flywheel diameter600mm590mmflywheel turning speed1025rpmfeeding systemhydraulic feeding, adjustable ...