Hydraulic Torque Wrenches Hydraulic torque wrenches are professional tools for industrial applications. These truly versatile tools utilize standard impact sockets, optional direct drives or interchangeable hexagon cassettes to provide controlled tightening of multiple sized fasteners tool. Optional accessories further extend the application range of these products. Hydraulic wrenches are widely application for tightening and loosening of bolts at various joints, especially flange bolts. Main application for: Electricity (Hydropower, Wind Turbines, Thermal power, Nuclear power), Chemical equipment manufacturing, Oil and Gas, Coal mining, Steel mills, Renewable resources, Railway shield, Cement, Industrial manufacturing (Construction machines, Automobiles, Metal composites, Offshore and Maritime , Gear boxes, Valve fluid manufacturing, Steam turbine). [WD-A Series Square Drive Hydraulic Wrench] Made in China 12 models torque from 112N.m to 70320N.m 4 Square drive sizesï¼?3/4 ,1, 1-1/2, 2-1/2 Output torque certified at ±3% Model Square Drive Torque weight ft.lbs N.m in min max min max lbs Kg WD-A07 3/4 82 826 112 1120 3.53 1.6 WD-A1 3/4 135 1350 183 1830 4.41 2 WD-A3 1 332 3327 451 4510 8.82 4 WD-A5 1-1/2 554 5547 752 7520 15.44 7 WD-A8 1-1/2 795 7952 1078 10780 19.85 9 WD-A10 1-1/2 1144 11441 1551 15510 28.67 13 WD-A15 2-1/2 1521 15211 2062 20620 39.69 18 WD-A20 2-1/2 1966 19666 2666 26660 55.13 25 WD-A25 2-1/2 2561 25612 3472 34720 68.36 31 WD-A35 2-1/2 3589 35895 4866 48660 99.23 45 WD-A45 2-1/2 4360 43597 5910 59100 138.92 63 WD-A50 2-1/2 5187 51874 7032 70320 196.25 89