HR21M Soil pF Curve Centrifuge

Max Capacity:4x100ml
Max Speed:10000RPM
Speed Type: Special Centrifuge
Temp Type: No

HR21M Soil pF Curve Centrifuge

The soil pF curve is determined by the relationship between soil suction, bulk density and weight and water content, so that a high-precision soil moisture characteristic curve pF is obtained.

The soil moisture characteristic curve is usually measured by a pressure membrane (chamber) and a centrifuge. Compared with other methods, the centrifuge method is simple and time-saving, and can measure a wide range of suction force. It is widely used in soil moisture dynamic simulation, meteorological climatology, soil geography, hydrology, and agricultural science and technology.


Model HR21M Soil pF curve centrifuge
Max Capacity 4×100 ml
Max speed(r/ min) 10000
MAX RCF(×g) 14530
Measuring range Pf :2.0-4.2 (0.1bar-15bar)
Measuring sample 4pcs/ each time
Speed Accuracy ±50r/min
Control and drive system DC/AC variable frequency motor, microcomputer control
Compressor Fluorine-free refrigeration compressor unit and control valve R404a
Running program 16 Sets
Temperature Range -20℃~+40℃
Temperature Accuracy ±1℃
Time Range 1-99h59min,Continuous centrifugation and transient centrifugation
 POWER supply AC220V 50Hz/30A
Noise Level ≤65 dB
SIZE(L*W*H) 820×710×950 mm
Weight 240 Kg

Optional Rotor:

Rotor name Capacity Max Speed Max speed quanlity size
Soil dewatering rotor 4×100 ml 10000 14530 4pcs φ50×51mm