The HR 260 is a self erecting, 75 ton drilling rig particularly suitable for drilling great diameters using the kelly bar system and with casing tubes directly with the rotary. The HR 260 is able to perform the following applications:
- Drilling large diameters and great depths with augers or buckets
- Execution of direct rotary drilling with casings and casing oscillator
- Continuous Flight Auger (CFA) & Diaphragm Walls
- Execution of Double Head drilling
The HR 260 is available in the following two versions:
HR 260 CP – the standard version, is equipped with a Pull-down Cylinder which exerts it’s force on the rotary, and is principally utilized for drilling large diameter bore holes. The rotary is able to work with a stroke of 6.100 mm (20 ft) approx. The HR 260 CP uses a parallelogram system of articulation guaranteeing a notable range or motion 1.000 mm (3.3 ft).
HR 260 THD – available upon request, The THD system moves the rotary by utilizing a crowd winch, allowing the rotary to be used along a larger stroke of the mast, 10 m (33 ft) approx. The THD version is particularly useful for driving and extracting casing tubes directly by the rotary, and without a doubt increasing your daily productivity.
Pictures
Working characteristics
| Works with Augers & Buckets | ||
| Max Diameter | 2.600 mm | 8.5 ft |
| Max Diameter with Casings | 2.300 mm (CP version) 2.000 mm (THD version) | 7.5 ft (CP version) 6.5 ft (THD version) |
| Depths | 40 - 50 - 60 - 80* m | 131 - 164 - 197 - 263* ft |
| Works with Casing Oscillator | ||
| Max Diameter | 1.600 mm | 5.2 ft |
Technical data
| Rotary | ||
| Nominal torque | 260 KNm | 192,000 lbsft |
| Nominal Pull-Back (CP version) | 200 - 280 KN | 45,000 - 63,000 lbs |
| Nominal Pull-Back (THD version) | 200 - 200 KN | 45,000 - 45,000 lbs |
| Unloading speed | 140 rpm | |
| Stroke | 6.100 mm (CP version) 10.000 mm (THD version) | 20 ft (CP version) 33 ft(THD versione) |
| Winches | ||
| Main Winch Nominal Pullback | 250 - 260* KN | 56,200 - 58.500* lbs |
| Secondary Winch Nominal Pullback | 80 - 120 - 180 KN | 18,000 - 27,000 - 40,500 lbs |
| Engine | ||
| Brand | CATERPILLAR | |
| Model | C13 | |
| Power | 328 KW @ 2.100 rpm | 440 HP @ 2,100 rpm |
| Hydraulic System | ||
| Hydraulic Oil tank | 800 liters | 211 gal |
| Fuel tank | 430 liters | 114 gal |
| Crawler | ||
| Length | 5.450 mm | 17.9 ft |
| Width | 3.000 - 4.300 mm | 10 - 14 ft |
| Shoes | 900 mm | 3 ft |
| Weight | ||
| Approx weight | 75 ton | 165,000 lbs |