Hollow Rotary Hydraulic Cylinder High-speed, lightweight, large aperture rotary hydraulic cylinder. Security structure, built-in auto-body check valve to prevent pressure source failure or pipe damage, to ensure that the pressure will not drop tank, and can continue a solid workpiece. Not return to port when installing more than 15 degree angle, the return pipe must be above the oil level so as not to produce back pressure. Spec.Eff.piston area cm²Piston Stroke(mm)Max. speed(r.p.m)Max pressure(kgf/cm)GD²kg.m²Weight(kg)ExtendRetractTH-42853.250.51080004.0(40)0.012.9TH-536 69.867.515200.013.4TH-646 97.387.970004.0(40)0.044.9TH-852 146.8136.62062000.084.9TH-1075 196.2182.02547000.186.8TH-1291 250.0233.43038000.3820.4 Spec. A B C D E h7 F G1G2H J K LM1 M2 N1 N2 Max. Min. Max. Min. TH-42890 130 120 100 80 40 10 033 23 45 127.5 162 6-M8*15M33*1.5 25 M34*1.5 26 TH-536 105 150 135 115 100 48 15 37 22 47.5 125.5 175.5 6-M10*20M42*1.5 M44*1.5 28 TH-646 125 180 156 130 65 61.5 132 195.5 12-M10*20M55*2 30 M52*1.5 32 TH-852 150 198 188 170 130 70 20 42 66 145 200 M60*2 M58*1.5 34 TH-1075 175 225 213 190 160 95 25 47 62 166.5 233 12-M10*22M85*2 35 M84*2 40 TH-1291 205 255 240 215 180 110 30 52 64.5 180.5 255.5 12-M12*24M100*2 M99*9 46