Mobile B57 Drill, Mounted on an
International 4900 Series Truck
Hydraulic Feed System
- Pulldown force: 23,300 lbs [10,568.7
kg] - Retract force: 35,300 lbs [16,011.8 kg]
- Feed speed, down: 61 ft/min [18.59 m/
min] - Feed speed, retract: 40 ft/min [12.19
m/min] - Feed stroke: 6 ft (1.83 m]
Power Unit
- Deck engines: Cummins, Deutz
Diesel
Hydraulic Pumps
- Primary pump: 24 gpm [90.851/min]
- Auxiliary pump: 24 gpm [90.85 I/min]
Drill Head Rotary
- Maximum rotary speed: High speed range 0-665 rpm
- [69.64 rad/s] [3rd gear]
- Maximum rotary speed: Low speed range 0-82 rpm
- [8.59 rad/s] [1st gear]
- Torque: 10,896 ft-lbs [14,773 Nm]
- 6-speeds
- Open bore: 4-3/4 in (120.65 mm]
Leveling Jacks
- Single front/dual rear, 24 in [609.6 mm] or 36 in [914.4 mm] stroke
Estimated Operating Capacities
- Hollow stem augers, 4-1/ 4 in (108 mm] ID: 225 ft [68.58m]
- Continuous flight auger, 6 in (152.4 mm] OD: 325 ft [99.06m]
- Rotary drilling, 2-5/8 in [66.68 mm] OD drill pipe: 1,550 ft [472.4 m]
- Diamond core drilling, NQ: 2,350 ft (716.28 m]
- Note: Above drilling capacities may vary according to subsurface conditions.
SPT Automatic Hammer
- ASTM D-1586 standards, standard duty and heavy duty 140 lb [63.5 kg], 170 lb (77.1 kg], 300 lb [136.1 kg], 340 lb [154.2 kg] slugs available
- Hydraulic compensated
- Self compensating optional
Hoist
Main-Single line capacity: 12,000 lbs
[5,443.1 kg]
- Line speed: 52 fpm [15.85 mpm]
- Cable diameter: 5/8 in (.625) [15.88mm]
- Cable length: 100 ft [30.48 m] standard
Main-Single line capacity: 8,500 lbs
[3,855.54 kg]
- Line speed: 0-75 fpm [0-22.86 mpm]
- 0-325 fpm [0-99.06 mpm] reverse
- Cable diameter: 1/2 in (.500) (12.7 mm]
- Cable length: 100 ft [30.48 m] standard
Auxiliary-Single line capacity: 4,500
lbs [2,041.17 kg]
- Line speed: 0-135 fpm (41.15 mpm]
- Cable diameter: 5/16 in (.325) [8.26 mm]
- Cable length: 100 ft [30.48 m] standard
Safe-T Driver-Single line
capacity: 900 lbs [408.23 kg]
- Line speed: variable up, freefall down
- Cable diameter: 1/4 in (.250) [6.35 mm]
- Cable length: 300 ft [91.44 m] standard
Wireline-Single line
capacity: 1,200 lbs [544.3
kg]
- Line speed: 0-500 fpm [0-152.4 mpm]
- Cable diameter: 3/16 in (.185) (4.7 mm]
- Cable length: 400 ft (121.92 m] standard
- Winch capacity: 3,500 ft [1,066.8
Weight
- Minimum: 28,000 lbs [12,730 kg]
