Dam Foundation JK830RC Reverse Circulation Drilling Rig 12300mm Long Chassis 20 Degree Grade 3km/h Travel

This dam foundation JK830RC reverse circulation drilling rig is configured for major civil engineering projects where deep investigation and grout holes must be drilled through mixed overburden, weathered rock, and hard bedrock. The 12300 mm long chassis provides a long, stable base for mast erection and drilling on sloping dam abutments, while the 20 degree grade ability and 3 km/h maximum travel speed let the rig move safely around steep construction ramps and terraced excavation levels. RC drilling is the method of choice for many dam foundation programs because it returns continuous, uncontaminated samples that guide grouting and foundation treatment decisions.

• 12300mm Long Chassis: extended base improves mast stability on uneven abutment terrain.
• 20 Degree Grade Ability: climbs and works on steep dam-side access ramps.
• 3km/h Fast Travel: quick repositioning between closely spaced foundation holes.
• 335kW Power Reserve: maintains full RC flushing performance in hard bedrock.
• Clean Sample Recovery: reverse circulation returns reliable cores and cuttings for geotechnical logging.
• Heavy Duty Ground Clearance: 400mm clearance clears debris on active construction sites.

This JK830RC variant is built for dam foundation investigation, curtain grouting support holes, tunnel portal stabilization, and large bridge foundation drilling. Civil contractors use the machine to drill RC holes through alluvium and decomposed rock before grouting programs begin, and the continuous sample recovery helps engineers map the foundation conditions accurately. The rig is equally capable on railway and highway cut projects where deep drainage and anchor holes are required. Its mobility between working levels reduces crane and support equipment requirements on congested construction sites.

Before shipment, the rig receives a full service and a documented test of the RC circuit, hydraulic functions, and tramming system. Transport is arranged by 40ft flat rack or RORO vessel with the mast and auxiliary equipment protected. The delivery documentation includes CE certification, engine papers, operating manuals, and a maintenance schedule for the first 1000 hours. Our engineers provide commissioning assistance and ongoing technical support for foundation drilling applications.