DFU220 Rotary Drilling Rig

Uses: The DFU Series All-hydraulic Rotary Rig is an efficient drilling rig in large-caliber pile foundation projects,such as the base construction of railway bridges, road bridges, public works bridges and large buidings etc.2. Features:1) The series of DFU rotary drilling rig are hi-efficiency pore drilling equipment for pile foundation construction, suitable for base foundation construction such as high-rise buildings .bridges and hydraulic construction.2) With the advantages of famous brand drills at home and broad in design and technique, it has the same performance parameters as the international-level product of its kind, and the international brand-name products are employed for its key components, The machine is convenient and efficient in operation, helpful for environmental protection and energy saving, and beneficial to comfortable and safe operations.3) The main body structure is designed rationally and has high hardness, which effectively ensures the durability and firmness , and impact and vibration resistance, especially the dynamic head can provide enormous torque, thus promoting the operation efficiency.4) With multi-choice of drill rods, it can use various drilling bits and tools, resulting in broad construction choice, It is suitable for construction in clay, gravel, pebble, middle weathered stone and plateau frozen soil strata and can provide solution of construction in the pebble bed which cannot be carried out by ordinary drills.5) Due to the adoption of CAT C-9 electrojet turbine engine with supercharged intercooler, it has high reliability and economical fuel consumption.6) Auto acceleration/deceleration functions, resulting in 5-10% fuel costs reduction.7) Once operation stoppage, the speed of engine could automatically decelerate to save fuels, and when restarting, the speed of engine could automatically resume to its setting value.8) Reliable system assurance: the international brand-name Rexroth hydraulic system and electro-hydraulic pilot control can automatically adjust the verticality of mast, EMC e-module real-time monitoring, 16 alarm functions, PLC program controlling working state of drills and newly-designed safety cooling system can satisfy working conditions and environment, also reliable Grade 3 alarm monitoring system can guarantee normal operation of drills.9) The specially-recommended DFU150 and DFU180 rotary drilling rigs with enormous power can be widely applied in enormous and excessive deep piling construction of foundation works, bridging the gap in rotary drilling rigs with enormous power and excessive large caliber.10)Product models:DFU120,DFU150,DFU180,DFU200,DFU220.Main technical parameters:Model parameterDFU220Max. drilling diameter(mm)2000Max. drilling depth(m)68Rated output torque (kN.m)220Max. output torque(kN.m)230Drilling speed(rpm)7—28Max. Push(kN)190Max. Pull(kN)190Stroke of crowd cylinder(mm)4300Mast sideward5°Mast forward5°Engine modelCUMMINS 6CTA8.3-C260Configuration power( kw )194Main winch pull (1st layer)(kN)210Main winch rope dia.(mm)28Main winch line speed70Auxiliary winch pull (1st layer)57Auxiliary winch rope dia.16Auxiliary winch line speed70Chassis modelBONNY ZJ16A-6Width of crawler belt (mm)700Operating width(mm)4300Operating height(mm)21650Transport length(mm)15650Transport width(mm)3000Transport height(mm)3300Chassis length ( mm )4000Traction force(kN)370Drill stem model14.5m-long 5-sectionΦ440mmTotal weight(including standard drilling tools)(t)57Weight in transport state(t)47Hydraulic main pumpKawasaki JapanMain hydraulic control valve.Kawasaki JapanPlanetary reducer of power headBonfiglioli or DinamicoilPower head motorRexroth Main winch reducerRexroth or BonfiglioliMain winch notorRexroth or PARKERAuciliary winch reducerFUSHENAuciliary winch motorLIYUAN