The series of RB 40 Universal Rotary Drilling Rigs has been completely reworked and upgraded, technically as well as power-wise.
The PRAKLA RB 40 Universal Drilling Rig enables each user to drill with the following methods, with borehole diameters of 4″ (108 mm) to 40″ (1016 mm) and drilling depths up to 700 m.
- Rotary-drilling with direct circulation
- Rotary-drilling with reverse circulation
- Auger drilling
- Percussion core drilling
- Wire-line core drilling
- Down-The-Hole hamemr drilling
- Free-fall drilling
Drill Rig Prakla RB 40 [PDF]
Technical Data
| Chassis | |
|---|---|
| 3-axle truck | 6 x 6 |
| e.g. MAN, TGA 33.430 | 434 HP |
| Mast | |
| Mast height aGL | 44,3 ft |
| Casing installation height | 26,2 ft |
| Free working height power swivel | 23,6 ft |
| Regular operational hook load | 76,680 lbf |
| Max. permissible hook load | 89,924 lbf |
| Feed device (hydr. cylinder) | |
| Push-down / Pull-back force | 17,984 / 13,488 lbf |
| Feed speed | 0-2.6 ft/sec |
| Power swivel | |
| gear select, 3 speeds | |
| Torque at 0 – 62 rpm | 16,816 lbf-ft |
| Torque at 0 – 120 rpm | 8,556 lbf-ft |
| Torque at 0 – 240 rpm | 4,200 lbf-ft |
| I.D. hollow shaft | 5 7/8″ |
| Carrying capacity | 123,650 lbf |
| Draw works | |
| Line pull 1st layer | 21,357 lbf |
| Line pull (4-fold crane block) | 89,924 lbf |
| Wire rope diameter / Rope length | 5/16″ / 3,280 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 | Duplex 5″ x 6″ |
| Discharge capacity | 180 gal/min |
| Operating pressure | 305 psi |
| Centrifugal mud pump | Mission Magnum 4″x3″x13″ |
| Discharge capacity | 793 gal/min |
| Operating pressure | 101 psi |
| Compressor | |
| 1 Stage, Screw type | Atlas Copco XAH 4 |
| Discharge capacity | 466 cfm |
| Operating pressure | 20 psi |
Further alternatives acc. to customer specification after technical clarification.