1BZ(BX)series semi-mounted offset heavy-duty disc harrow:This series are used for cleaning away stubble of plants before tillage,and crushing clods affter tillage in uncultivated field, this harrow may replace a plough for the primary tillage. the maximum working depth in uncultivated land can be up to 18cm.The surface of the filed after the harrow work is level and the crushing land clearning ability of the harrow is satisfactory. ths series of harrow can easily be hooked up, simply be adjusted, flexibly change the directions,stabiy drive and have good pass ability.