Strain controlled direct shear apparatus is determining shear strength. under different vertical pressure, exerting shear strength so as to shear and get the shear strength value; Determining the strength parameter according to Coulomb's force principle and cohesion from inside friction angle.

This is beauty design, it releases operator labor strength, improve the testing accuracy. It has manual type function, shear speed ratio in according with national standard requirement, it is easy operation, stable speed, limit speed construction, it can protect the machine;