Direct Shear Testing Apparatus Sqaure Shearing Box 2 shearing speeds by rotating button 220V voltage Direct Shear Testing Apparatus Application: This apparatus is used to test ... soil sample:30cm² 2. Lever ratio: 1:123. Vertical loading: 50,100,200,300,400(Kpa)4. Max. horizontal loading: 1.2KN5 ... . Shear rate: 0.02, 0.8, 2.4mm/min6. Handwheel speed: 0 ...