When the strata conditions are unstable, Casing is required to be driven to overall depth to prevent hole's collapse. It is called All Casing method (Benoto Method, Shaft Drilling). To drive the Casing and retract it after concreting, Casing Oscillator is strongly recommended to use. With its superior oscillating torque and lifting force, the machine shows the best performance of driving and retracting the casing. If it is used together with Hammer Grab, it shows the fast excavating speed with its big volume of jaw and it is available for excavating gravels and boulders layer. Providing Powerful and Reliable Foundation engineering solutions since 3 decades! Call #DrDigger #FoundationSpecialists since 1990 on 1800 120 7873 sales@ Best product support, better foundations
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