Single-acting Hollow Ram Cylinder (20tons – 4) (YG-20100K). HYDRAFORE YG-20100K Single-acting Hollow Ram Cylinder Working pressure: 700bar / 10.000psi For use in Testing, Maintenance and Tensioning Applications Recommended pump: B-700 Technical parameters: Model: YG-20100K Tonnage: 20 T Stroke: 3.94 Oil capacity: 17.82 in3 Recommended pump: B-700 Weight: 22 lbs. Single-acting Hollow Ram Cylinder. Working pressure: 700bar / 10.000psi. For use in Testing, Maintenance and Tensioning Applications. Sorry, our items are NOT available for pick-up. No additional information at this time. You might also like. Hydraulic Pressure Gauge wit Stand (14.500psi – 4) (SPG100). Hydraulic Gear Puller (30tons / Ø6-16in) (L-30). Rubber Coated Hydraulic Hose (6.6 feet) (RH-2). Thermoplastic Coated Hydraulic Hose (10 feet) (TH-3).