HYE series hydraulic compression testing machine is used for testing the compressive and flexural strength of cement, concrete and other building materials. it can be carried out in accordance with the corresponding standard as setting loading rate. Load capacity, time and test curve are displayed dynamically, and control timely and maxmimum test force hold function. compressive strength, flexural strength and other mechanics test data can be calculated and printed by the control software automatically. suitable for testing 50mm, 100mm, 150mm and 200mm cube samples as well as cylinder samples with 75 -160mm diameter and 150-320mm height. pressure safety valve, piston limit switch, removable front and rear gates are standard in all models. upper compression platens have ball seating assembly for movement in all models. all compression platens have a surface hardness of 50 hrc