Redbore 50
The Redbore 50, has been designed as a mid-capacity drill to replace much larger equipment. The Redbore 50 has the same footprint as the Redbore 40 and requires only slightly more back height. The Redbore 50 can be configured to downream 28.5 in. (724 mm) diameter through the table. Nominal capacities range from 42 in. (1.07 m) up to 7.0 ft. (2.13 m) diameters with lengths of raises up to 600 ft. (183 m).
Dimensions
| Extended Height | 156-1/8” (3.97 m) |
| Retracted Height | 119-5/8” (3.04 m) |
| Transport Length * | 119-5/8” (3.04 m) |
| Transport Width * | 55-3/4” (1.42 m) |
| Transport Height * | 52-1/2” (1.33 m) |
| Transport Weight * | 15,705 lbs (7 139 kg) |
*(excluding base plates/pipe loader/erector) | |
Thrust System
| Thrust System Type | Hydraulic Cylinders |
| Maximum Pilot Hole Force | 80,000 lbs (358.4 kN) |
| Maximum Reaming Force | 400,000 lbs (1 779.3 kN) |
| Maximum Operating Pressure | 4,000 psi (27 579 kPa) |
Rotation System
| Rotation System Type | AC Drive 125 hp Electric Motor |
| Pilot Hole rpm | 0 – 80 Variable |
| Pilot Hole Torque | 15,000 ft-lbs (20.3 kN.m) |
| Reaming rpm | 0 – 12 Variable |
| Reaming Torque | 68,000 ft-lbs (92.1 kN.m) |
| Makeup Torque | 78,745 ft-lbs (106.3 kN.m) |
| Breakout Torque | 90,091 ft-lbs (122.1 kN.m) |
| Operating Pressure | 4,500 psi (31 026 kPa) |
Drill String
| Raise Angle Range | 45º to Vertical |
| Pilot Hole Diameter | 11” (279 mm) |
| Drill Pipe Diameter | 10” (254 mm) |
| Drill Pipe Length | 58” (1.47 m) s/s |
* (Optional Drill Pipe – 8” (203 mm) *(Hydraulically operated lower rod wrench) | |
