Aquaspin Center pivot irrigation system Drive towers-wheel base Drive tower bracing angle 100x75 for high torsion resistance; Large-dimension wheel base drive tower heights for optimum adjustment to different crops;Wheel base brackets with bracign; Highly stable stand thanks to extremely wide wheel base; Permissible slope: up to 15%. Gear motors High-torque motor with thermal overload protection Enclosed moisture-proof motor High-efficiency spur gear Shaft seal with specific dirt--repellent profile Types: 40:1(0.55kw; 0.75kw;0.9kw;1.1kw)