PRODUCT TECHNOLOGY PARAMETERS--Rotary Drilling Rig(TLDM25)Max.drilling diameter With Casingmm1800Without Casingmm2500Max. drilling depthm80(5 element)/58(4 element)MeasurementWorking conditionm9.63×4.5×24.27Transportation conditionm17.73×3.36×3.38Min. Working Radiusmm4240Total weight(working condition)T76EngineModelQSM11-335Rated powerkw/rpm250/2100Max. TorqueN.m/rpm1704/1400Hydraulic SystemMax.Working pressureMain PumpMpa32Auxiliary PumpMpa28Max.Oil Flow RateMain PumpL/min520Auxiliary PumpL/min140Rotary headMax. TorqueKN.m248Revrpm6 32Max.Spin-off rate rpmrpmCrowd cylinderMax.Crowd force pushKN185Max. Crowd force pullKN210Max. Strokemm6000Main WinchMax. Line PullKN210Max. Line Speedm/min67Wire Rope Diametermm32Auxiliary WinchWire Rope Diametermm24Max. Line PullKN110Max. Line Speedm/min55Mast TiltLeft and Right Tilt Degree°±4Forward Tilt Degree°5Backward Tilt Degree°15PlatformSwing Angle Degree°360Swing Speedr/min3UndercarriageMax. Travel Speedkm/h1.75Max. Gradeability°15Min. ground clearance inchmm419Width of track shoesmm900Overall width of crawlermm2460 3600Overall Length of crawlermm4700Rotary Drilling Rig Introduction Rotary drilling rig is a new kind of bored pile of construction equipment. The engines and other key components purchase in the world. It adopts its own telescopic track dedicated chassis, and its stability is better than the one adopts a similar rig of common chassis; By independent research and development, its control system integration features strong power, fast response and high accuracy; its drilling masts can load and dump automatically; furthermore, it has the feature of new luffing mechanism structure, strong drive force and good stability; it can be assigned with a variety of drilling tools, and it adapts to the complex geological conditions of clay layer, sand layer, gravel layer of weathered rock. It is widely used in highway, railway overpass, and the large-diameter pile viaduct piers and in the pile of the construction of high-rise buildings.