Safety Working Load: 50-250KN Max Working Radius: 10-30m Min Working Radius: 3-8m Hoisting Speed: 0-15m/min Slewing Speed: 0.4-1 r/min Luffing Time: 80-140s Slewing angle: 270°-360° Allowable Gradient: Tansverse: 5°/ Longitudinal: 2°