• Shiva Scientific Instruments

Laboratory Vane Shear Apparatus

Laboratory Vane Shear Apparatus, (Hand)-BIS 2720 (XXX) is used for determining the shear strength of both remolded and undisturbed soils. It consists of a torque head adjustable in height to enable the vane to lower into the specimen. Rotation of the vane is by mean of a hand wheel, which operates a worm gear arrangement turning the upper end of a calibrated torsion spring. Two rates of rotation are incorporated. The vane shaft is attached through the hollow upper shaft to a reset table pointer, which indicates the angle of torque on dial graduated in degree. The dial reading multiplied by a spring factor gives the torque.