The CFG series step-type hydraulic drill is a new kind of drill. It is jointly developed by the Construction Machinery Comprehensive Research Institute and our company with advanced new technologies. The CFG series and its construction process has been nominated to a new state-level construction process. 

The CFG series consist of two parts, the pile-driving frame and the drilling system. The undercarriage adopts step-type walk, which makes movements flexible and repositioning rapid. The slew is driven by a hydraulic motor which allows reliable operation. Without hydraulic legs, the machine's stability has been increased greatly. The pile frame combines the winch and the cylinder, making the operation quick and reliable. 

The CFG series are equipped with a pile-drawing limiter which automatically gives the alarm or cuts off the electricity when the pile-drawing force reaches the pre-set limit. In this way, the sytem benifits from increased safety and accidents which result from overloading or misuse can be avoided. The back stay adjustment, the slew walk of the pile frame are controlled in the cab, which proves very convenient. The completemachine can be transported by a detachable semi-trailer, so it is convenient to move the machine from one place to another.

The rotary head device adopts the national patent technique--tri-circle speed reducer which features high bearing capacity and reliability. Equipped with swivel joints, the output axis and the auger stem are hollow inside, which allows long spiral processing and superfluidity construction.

During operation, no vibration, noise or pollution arises, which brings a high hole rate. The CFG series is the ideal equipment for civil and industrial construction.