該機採用液壓步履式行走方式及伸縮鑽杆，工作時動力裝置直接潛入孔底驅動鑽頭迴轉切削，可實現循環法、迴轉斗及短螺旋（干法成孔）等幾種工法；適用於多種複雜的大樁徑基礎施工。
該機行走、迴轉、就位、起落臂架、鑽進、提升均由液壓與電氣系統完成，具有機械化程度高、性能可靠，成孔規則，工作振動小，噪音低、效率高等特點。

This driller utilized the hydraulie&step-type walking way and extesion-type drill stem. In the operation.power device can be directly submerged into the bottom of hole to drive the drill bit for rotary cuttig,and short screw(dry drilling hole)and so on.It is suitable for various comples foudatio construction of large diameter pile.

All operatios of driller Walking,rotary,positioning,up&down of frame,drilling and lifting will be performed by hydraulic and electronice system. It has the features of high-degree of mechanization,reliable performance, trgular drill hole,small vibration in operationg, lower noise,high effciency and etc.