Main application Drilling wells for urban and rural life Drilling wells for agricultural irrigation and industries Drilling for geotechnical survey Drilling construction engineering holes Drilling geothermal pump wells Drilling parameter Hole diameter: 120--1500(mm) Hole depth: 350(m) Run of rod : 3, 4(m) Drill rod diameter: f73 f89 f95 f133(mm) Drilling technology: normal and reverse circulation for both mud and air Down-the-hole hammers: middle-high-pressure air Performance parameter Drill head inside diameter : f80 f120 Drill head lifting force(kn): 130(kn) Drill head spin speed: A(forward:20-33-73, reverse:13-23-47r/min) B(forward:41-66-146, revers:26-43-94r/min) B(forward:36-58-127, revers:23-37-80r/min) Shape parameters Dimensions: (l-w-h) working conditions 9600�2950�7900(mm) Transport status: (l-w-h) 10200�2470�3300(mm) Supporting form: hydraulic type Mast up-down: hydraulic type Rig mass: 12500(kg) Truck: ?dongfeng? brand eq1141, cummins engine 132kw Power unit of rig: ?deutz? brand diesel engine Power: 84(kw) Mud pump: bw600/30 mud pump Flow(m�/h): 720l/min 513l/min 335)l/min Pressure: 3 mp 4 mp 5mp Main hoist lifting force: 25(kn) Auxiliary hoist lifting force: 8(kn)