1.Model: 1GQN-250B rotary tiller 2.Tillage width (cm): 250 3.Tillage depth (cm):12~ ... bearing increase;3, strengthen type gear box : : bold gear box spline axis, gear modulus increase, the size bevel gear is circle-arc gear.4, strengthen the suspension ... at the first time, Agricultural machinery, 1GQN-250B powerful cultivator/rotary tiller