The rig is able to place casing of 6 meters. Rated Drilling Depth 400m Site Condition Crawler Mounted Telescoping Mast Drill Rig is mainly applicable to the drilling process of wells, monitor boreholes and geothermal boreholes. Product Features JKS400SH Crawler Mounted Telescoping Mast Drill Rig is a new, efficient, multifunctional hydraulic well drilling rig, mainly applicable to the drilling process of well, monitor boreholes and geothermal boreholes. When drilling in the rock layer, the rig adopts DTH percussive hammer for penetration and compressed air for cleaning, the penetration speed being dozens of times quicker than conventional rotation rigs.  More information you can viwe here The rig is able to handle casing size up to 6 meters. In loose rock, the rig employs a cutting bit or cone bit and uses mud to clean the dirt, its versatility suiting for all kinds of complex geological conditions Hydraulic supporters used facilitate the rig erection on site without crane.  We are Crawler Mounted Drill Rig Supplier and Crawler Mounted Drill Rig Factory  Rated Drilling Depth 400m Borehole Diameter 140~350mm Engine Power 92kW Max. Lifting Force 20T Axial Pressure  ± 8T Lifting Force of Small Winch 1.5T Rotation Torque 8500N.m Rotation Rate 0ï½?40/80rpm