Wide Diameter Deep Hole Crawler Well Drilling Rig 600m 140-450mm Borehole JKS600B

The JKS600B wide diameter deep hole crawler well drilling rig is the heavy lifter of the JKS family, rated for 600m holes with borehole diameters from 140mm up to 450mm. A 132kW engine feeds a high-torque rotary head delivering 14000N.m, enough to turn large tricone bits and DTH hammers through the toughest formations. The 30T maximum lifting force handles long, heavy drill strings and casing programs typical of municipal and industrial water wells. A 5200mm feed stroke and 0.9m centralizer height keep the string stable and the hole straight, while optional centrifugal mud pump and foam pump configurations cover both mud rotary and air drilling methods.

• 14000N.m torque: the strongest rotary drive in the series drives 450mm bits through cemented gravel and hard rock.
• 30T lifting force: handles deep casing strings, long rods and stuck-tool recovery without external winch assistance.
• Wide borehole range: 140-450mm diameters cover municipal supply wells, dewatering wells and large irrigation bores.
• Long feed stroke: 5200mm stroke reduces connections and keeps penetration rates high in deep holes.
• High centralizer: 0.9m centralizer height improves hole straightness for trouble-free pump installation.
• Multiple mud options: optional 1500L/min centrifugal mud pump and 20L/min foam pump support diverse drilling fluids.

The JKS600B is specified for municipal water supply wells, large-scale irrigation projects, industrial process water bores, deep dewatering systems and big-diameter geothermal wells. Its combination of wide hole diameter, deep capacity and high torque also supports foundation piling pre-drilling and large-diameter exploration holes in mining and civil engineering.

The JKS600B is shipped with heavy-duty steel frame packing, full corrosion protection and load-tested hydraulic components. Each unit is factory tested under load for rotation torque, feed force and winch operation. The delivery package includes a one-year warranty, detailed operation and service manuals, spare parts kit and remote technical support for assembly and commissioning.