Automatic CBR Test Machine is designed for performing laboratory evaluation of the CBR value of highway sub-bases and sub-grade, and determination of the strength of cohesive materials which have maximum particle sizes less than 19 mm.
The Machine is composed of a robust and compact two column frame with adjustable upper crossbeam driven by an electromechanical ram with a maximum capacity of 50 kN and a data acquisition and processing system.
The Machine is designed to load the penetration piston into the soil sample at a constant rate to measure the applied load and piston penetration at predetermined intervals. The ram speed can be set between 0.5 mm/min to 5 mm/min by using the TCM digital readout unit. This main feature allows the user to perform tests complying to BS, EN, ASTM or AASHTO standards with the same machine. Rapid adjustment of the platen is also provided by up and down buttons which are located on the front panel of the machine.

The CBR machine is a motorised load frame specifically designed to carry out CBR tests.
It is a bench-mounted system with a motorised drive. The speed is pre-set to 1.2mm/min which covers both ASTM and BS standards. Supplied complete with a limit of travel safety switch.


Capacity 50 kN
Platen Speed 0.625 to 5 mm/min .
Dimensions 400x560x1100 mm
Weight (approx) 90 kg
Power 350 W


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