The woodcutter unit TN-180 for tractor power take-off shaft (reinforced frame 30mm and knives 16mm thick) allows processing branches with a diameter up to 16 cm onto firewood 15-18 cm long. This unit is using with tractors from 80 hp. with a PTO operating mode of 540 rpm. It is recommended to use a cardan with a friction clutch for 8 splines. The width of the workpiece pass is 310 mm.