Electro-hydraulic compression testing flexural bending electro-hydraulic cement compression testing machine biggest test of 300KN 2 shows the relative error of ± 1% 3 pump rated pressure 25MPa 4 bending roller diameter φ30mm 5 bending rolls down 7 fold or two to carry the maximum distance between the roll center 165mm 6 between the two on the bending roller center distance 150mm from 450mm 8 bearing plate size φ155mm 9 between the upper and lower plate maximum spacing 230mm 10 piston diameter and maximum stroke φ125mm × 80mm 11 three-phase motor power 0.75 KW 12 Dimensions (L × W × H) 850 × 600 × 1340mm 13 weight about 500Kg functional use of the testing machine is mainly used for the flexural strength of concrete test specimen and cement, mortar and red bricks and other building materials compressive strength test. This machine adopts hydraulic loading, electronic measuring, with a load figures, loading rate shows maximum load to maintain, as well as overload protection and power data retention capabilities. The biggest test of technical parameters 300KN 2 shows the relative error of ± 1% 3 pump rated pressure 25MPa 4 flexural bending roller diameter φ30mm 5 between the upper and lower rollers on the maximum distance between two 165mm 6 bending roller center distance 150mm 7 carry twice center distance between the folding roller bearing plate size 450mm 8 φ155mm maximum distance between the upper and lower plate 9 230mm 10 piston diameter and maximum stroke φ125mm × 80mm 11 three-phase motor power 0.75 KW 12 Dimensions (L × W × H) 850 × 600 × 1340mm 13 weight about 500Kg pressure testing machine testing machine Jinan Jinan Jinan Experimental Factory testing machine manufacturers bending test machine ring stiffness tester based panels universal testing machine concrete compression testing machine