Rotary Drilling Rig Prakla RB 50

The lightest universal rotary drilling rig of PRAKLA Bohrtechnik has been completely reworked and upgraded, technically as well as power-wise. The PRAKLA RB 10 universal drilling rig enables each user to drill with the following methods, with borehole diameters of 4″ (108 mm) to 20″ (504 mm) and drilling depths up to 150 m.

  • Rotary-drilling with direct circulation
  • Rotary-drilling with reverse circulation
  • Auger drilling
  • Percussion cor drilling (ram coring)
  • Wire-line core drilling
  • Down-The-Hole hammer drilling
  • Free-fall drilling

Drill Rig Prakla RB 50 [pdf, 2.32 Мб]

Prakla RB 50

Technical Data

Chassis
3-axle truck 6 x 6
e.g. MAN, TGA 33.440 433 HP
Mast
Mast height aGL 44.3 ft
Casing installation height 26.2 ft
Free working height power swivel 24.6 ft
Regular operational hook load 89,924 lbf
Max. permissible hook load 112,400 lbf
Feed device (hydr. cylinder)
Push-down / Pull-back force 17,985 / 35,970 lbf
Feed speed 0-2.6 ft/sec
Power swivel
gear select, 3 speeds
Torque at 0 – 43 rpm 23,290 lbf-ft
Torque at 0 – 82 rpm 12,244 lbf-ft
Torque at 0 – 330 rpm 3,060 lbf-ft
I.D. hollow shaft 5 7/8″
Carrying capacity 146,125 lbf
Draw works
Line pull 1st layer 21,357 lbf
Line pull (6-fold crane block) 112,404 lbf
Wire rope diameter / Rope length 3/4″ / 312 ft
Coring winch / sand winch
Line pull 1st layer 4,500 lbf
Wire rope diameter / Rope length 5/16″ / 3,280 ft
Piston mud pump Triplex 5-1/2″ x 5″
Discharge capacity 396 gal/min
Operating pressure 870 psi
Centrifugal mud pump Mission Magnum 4″x3″x13″
Discharge capacity 845 gal/min
Operating pressure 101 psi
Compressor
2 stage, Screw type Atlas Copco ORX 10
Discharge capacity 953 cfm
Operating pressure 435 psi
SPECIAL EQIPMENT
Deck engine Deutz
Drive for 2 stage screw-type compressor 490 HP
Mast extension
Mast height aGL 59 ft
Casing installation length 48 ft (Casing R III)
XXL version
Mast height aGL 54 ft
Casing installation height 38 ft (Casing R II)
Free working height power swivel 36 ft (Drill pipe R II)

Further alternatives acc. to customer specification after technical clarification.