It is used to assist in calculating the working efficiency when the excavator is digging the soil. Composition: 1.Hand-operated lifting platform; 2.Dynamometer (with peak hold function); range 20N (2kg), Graduation value: 0.1N (0.02kg), accuracy 1% 3.Base (for fixing the soil sample cup, and can move back and forth, left and right) 4.soil sample cup 5.Guard ring 6.Pressing plate 7.Pressure device (2kg)
