... shearing speeds by rotating button 3. 220V voltag 4-SETS Shear Box Direct Shear Testing Apparatus Application: ... 4 specimens at the same test7. Working voltage: AC 220V 50hz Packing information: Measurement: 1160x900x1160mm(main frame), 500x500x1020mm(controller), ... control, variable speed displayed by the controller, easy to operate, ABS vertical type controller, LCD display.Optional Parts :ST1005E- ...