C010 Intelligent Electric Tetragenous Direct Shear Testing Machine

It is used to determine shear strength of soil, containing Electric and manual transmission function. Under different vertical pressure, inflicting Horizontal shear force, Destruction of the shear stress are obtained. According to the coulomb's law, we can determine the shear strength and deformation parameters of soil, internal friction Angle and cohesive force.

Automatic collection of iso-strain control direct shear instrument (stepless speed regulation)

Digital display and other strain-controlled direct shear instruments use electronic digital technology to transmit data, and the geotechnical test data processing and acquisition system software automatically collects, records and stores test data in real time. Compared with previous instruments, it saves the trouble of manual data reading and improves work efficiency.
The digital display equal strain controlled direct shear instrument is used to determine the shear strength of soil.Usually, a specimen is used to apply shear force to shear under different vertical pressures, and the shear stress at failure is obtained, and the resistance is determined according to Coulomb's law. Shear strength coefficient, internal friction angle and cohesion.
Digital display equal strain control direct shear instrument can be suitable for slow shear, fast shear and repeated shear tests of soil.

Instrument characteristics

1. The special geotechnical test data processing and collection system automatically collects, records and stores the vertical displacement and force value instrument data during the test process.
2. The test process saves labor and time and improves the test efficiency.
3. The leverage ratio is enlarged, which reduces the weight of the weight and labor intensity.
4. Compact structure, reliable and stable performance, easy to use.
5. The instrument has added the cutting box backward limit function, which makes the cutting box automatically stop after it moves back to the specified position, which enhances the protection function.
6. The LCD screen displays the set cutting speed and cutting deformation.
7. It has the function of hand shearing, which can not affect the test in the case of power failure.
3. Main technical parameters
1. Soil sample area: 3cm2 (diameter 6.18cm, height 2cm)
2. Leverage ratio: 1:20
3. Vertical loading classification: 50, 100, 200, 300, 400kpa
4. Digital dial indicator: 0-10mm
5. Ultimate horizontal shear load: 1.2KN
6. Shear rate: 2.4mm/min, 1.2mm/min, 0.8mm/min, 0.4mm/min, less than 0.02mm/min; 5 speeds can also be set arbitrarily.
7. Each handwheel rotation: 0.2mm
8. Power supply: 220V±10%, frequency: 50HZ±2HZ; power: 350w
9. Working environment: the temperature is 20±5℃, the relative humidity is 80%RH, and the environment is free from strong magnetism and strong vibration.
10. Apparatus dimensions: length 845*width 430*height 1118mm