Standards: ASTM D1883 BS 1377:4 AASHTO 193-99 ISIRI 1159   Model BPSO 630 BPSO 631 Description field CBR test machine manual CBR test machine Power supply 0.37kW,220V,50Hz 0.37kW,220V,50Hz Indicator proving rings proving rings Capacity 45kN 45kN Accuracy 20N 20N Flowmeter dial indicator.30mm,div.0.01mm dial indicator.30mm,div.0.01mm Dim 520*400*1300mm 520*400*1300mm Weight 70kg 70kg Stroke switch 50mm 50mm