1 They have been proved to be satisfactory for harrowing work on uncultivated lands and in heavy clay soil fields. 2 It may be used for cleaning away stubble of plants before tillage, or crushing clods after tillage. 3 It may also be used as plough for primary tillage in cultivated fields. 4 Maximum harrowing depth on uncultivated land can reach 18cm.Model Unit 1BZ(BX)-1.8 1BZ(BX)-2.0 1BZ(BX)-2.5 1BZ(BX)-3.0 Overall dimension cm 450*208*130 482*230*130 482*288*130 532*343*130 Weight kg 980 1050-1000 1150-1200 1250-1300 Working width m 1.8 2 2.5 3 Working depth cm 20 Blade spacing mm 230 NO of disc pcs 18 20 24 28 Dia. Of disc mm 660 Transport clearance mm >160 Productivity ha/h 1.2 1.3 1.4 1.7 Matched power kw 44-55 52-66.2 55-73.5 58.8-88 Linkage Semi-mounted