300KN, 600KN &1000KN UTM digital display hydraulic universal testing machine is mainly used to execute the tension, compression, bending, shearing etc. test for metal materials. With some special tools and devices, it also can be used to test wood, concrete,cement, rubber, and so on.The oil cylinder is at the bottom of the load frame, tension space is at the upside of the load frame, compression and bending space is between lower crosshead and working table. The lower crosshead is driven by motor through decelerator, chain transmission device and the screw pair post, so realize the adjustment of testing space.The machine adopts oil pressure transducer to measure load, use digital meter to display load, load speed, maximum load, and auto calculate the yielding strength of materials whose yield performance is clear to show.