Rugged, long-lasting design makes these amazing drill rigs as dependable as they are powerful. Dual rotary drill rigs have two rotary drive mechanisms, an upper rotary head and a high torque lower drive unit.
[pdf] CPD, also known as shell and auger drilling, uses a large tripod rig and winch to lift and drop a cutting tool inside a steel casing tube. This case maintains stability and prevents the borehole collapsing from any insecure soil. The cutting tool used is dependent on the type of ground substrate.
[pdf] A complete range of accessories for large diameter drill rigs, including kelly bars, CFA augers, drilling equipment and tools, designed to support the full spectrum of large diameter drilling methodologies in all types of soil.
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