... Once-over Tillage Machine Working width:3.6-7.5m Working depth:140mm Matched tractor power :> ... tillage machine, Working width from 3.6m to 7.2m,it can be content with different customer’s ... requirement . ModelUnit1LZ-3.61LZ-4.21LZ-5.41LZ-7.2Max widthm3.64.25.47.2Working depth mm140Dia.of ... disc mm460Blade spacing mm170Harrow group angle3,6,9,11,13Operating speed km/h7~9Productivity ha/h2. ...