1. Functions & features: Comply with national standard GB/ T17671-1999 Test Method of Compression Strength for Cement Mortar, applicable to compression strength test of cement and other materials; Adopt frame structure, servo motor control and speed reducer, ball screw and other loading system are installed at the bottom of main machine, automatic control by computer, with steady and high efficient test procedure, without hydraulic oil, easy for maintenance; Using computer to complete test parameters setting, test procedure control, data acquisition, processing, analysis and display and process test data by statistics and output various test curves and reports. It can make both single test and group of tests; With reliable safe protection function. 2 Main technical parameters: Model: YAW-300B Max. test force kN : 300 Accuracy class: Class 1 Adjustable range of test speed: Set freely Execution test standard GB/ T 17671-1999 Control mode: Auto control by computer Max. test space Compression: 220mm Diameter of upper and lower platens: 150mm Test method: It can make single test and group of tests. Dimension of main machine L* W* H mm: 930× 530× 1500 Weight ( kg) : 400 Power ( KW) 220V; 1.0kW