The equipment of RB 50 can be easily adapted to the specific requirements, because of its modular design. This drilling rig will be delivered either on modern off-road truck or on semi-trailer.
PRAKLA Bohrtechnik GmbH
The leading German manufacturer of multipurpose drilling rigs,has just introduced new version of drilling rig RB 50. This rig is suitable for advanced water well drilling with different drilling methods,e.g. “Reverse Mud circulation by Air Lift”, “Reverse DTH Hammer drilling” and “Drilling while casing”.
Universal rotary drill
The RB50 has been completely reworked and upgraded, technically as well as power-wise. The scope of utility was enhanced and diversified. The innovations include the option of mast-elongations, larger deckmounted engines, or mounting the rig on semi-trailer chassis.The RB 50 universal drililn rig enables each user to drill with the following methods, with borehole diameters of 4′ (108 mm) to 47′ (1200 mm) and drilling depths up to 1200 m.
up to 1.200 m at 8.1/2 ‘’ drilling diameter
up to 1.800 m for wire-line coring diameter PQ or similar
The maximum drilling depths depends on the geological conditions, the applied drilling methods and the drilling tools.
Applicable drilling methods
Direct mud circulation
Reverse Mud circulation (by Air Lift)
Down-the-hole (DTH) Hammer drilling
Wire-line Core drilling (optional)
Percussion core drilling (optional)
|HYDRAULIC-SYSTEM||operated by PTO of truck engine or by deck engine|
|Max. Hook load capacity||500 kN|
|– Type R1||Travel of Rotary head: 7,5 m
Casing installation length: 8,0 m
|– Type FM||Travel of Rotary head: 7,5 m
Casing installation length: 14,6 m
|– Type R2||Travel of Rotary head: 10,6 m
Casing installation length: 12,0 m
|Max. torque||31.580 Nm|
|Max. rotation speed||340 rpm|
|HYDRAULIC CLAMPING DEVICE|
|Max. clamping diameter||520mm|
|Max. free passage||900mm|
|Main winch||95 kN in first layer|
|Auxiliary winch||20 kN, optional larger|
|Wire-line coring winch||optional|
|Max. air flow||13,2 m3/min|
|Max. pressure:||14 bar (optional larger)|
|CENTRIFUGAL PUMP||3.200 l/min, 8 bar|