Digital CBR Tester Main Technical Parameter: 1.Max.load: 30KN 2.Capacity: 50KN 3.Standard penetration speed: 1mm/min 4.Testing range: 50KN 5. Size of the penetration rod: 50×100mm 6.Size of the cylinder: 152×170mm 7. Surcharge weight (split): total 8 sets (outside diameter: 150mm, inside diameter: 52mm), 125g per set, divided into two semicircle along the diameter. 8.Electricity supply: AC220V±5% Application The apparatus is applied in doing CBR test (bearing-ratio test) for the soil, the base-course and the sub-base materials after making the specimen in the prescriptive cylinder.