Product Description: 1.Engine : Feed by hydraulic cylinder,the drilling efficiency is higher and it can save labor. 2.Drill rod : 53x59 drilling rod adopted,high rigidity and strong delivery torque. 3.Spindle : Vertical spindle are fixed by four groups of bearing to ensure that the rotary machine is rigid enough for gravel layer and other complex geoloical conditions. 4.Mud pump : Equip mud pump with flow 160L/min,save cost and also make the structure compact. 5.Concentrated handle, small footprint,light weight, strong decomposition, easy to move. Product Parameter: Model ST-200 Drilling depth 200m Maximum open hole diameter 300mm End hole caliber 75mm Drill rod caliber 60mm Drilling angle 90°~75° Drill weight(No include power) 975kg