Application: This apparatus is used to determine the natural shearing strength of the saturated soft clay. Strength testing results of some soft clay with high sensitivity subjects to be improper and rest on sampling. This apparatus can obtain more precise strength indication.  It is recommended to be used together with drilling equipments as four bladed vane shear testing apparatus measures strength by drilling holes. It is able to test clay whose depth less than 30 meters.
Specification:
1. Size of the four-bladed vane:?5mm?50mm, 
?0mm?00 mm
2. Torquemoment of the steel ring: 80N.m
3. Precision of the torquemoment: 0.55 N.m
4. Guide stem: ?0mm?040mm
5. Size of the machine: 430mm?10mm?20mm 
6. Weight: 40kg