该机采用液压步履式行走方式及伸缩钻杆，工作时动力装置直接潜入孔底驱动钻头回转切削，可实现循环法、回转斗及短螺旋（干法成孔）等几种工法；适用于多种复杂的大桩径基础施工。该机行走、回转、就位、起落臂架、钻进、提升均由液压与电气系统完成，具有机械化程度高、性能可靠，成孔规则，工作振动小，噪音低、效率高等特点。Thisdrillerutilizedthehydraulie&step-typewalkingwayandextesion-typedrillstem.Intheoperation.powerdevicecanbedirectlysubmergedintothebottomofholetodrivethedrillbitforrotarycuttig,andshortscrew(drydrillinghole)andsoon.Itissuitableforvariouscomplesfoudatioc***tructionoflargediameterpile.AlloperatiosofdrillerWalking,rotary,positioning,up&downofframe,drillingandliftingwillbeperformedbyhydraulicandelectronicesystem.Ithasthefeaturesofhigh-degreeofmechanization,reliableperformance,trgulardrillhole,***allvibrationinoperationg,lowernoise,higheffciencyandetc.成孔直径：600mm-1200/1500mm钻孔深度：30/35m回转斗工作状态短螺旋工作状态)