Torque & Performance
| Parameter |
Value |
| Maximum Make-Up Torque |
100,000 ft-lb |
| Maximum Break-Out Torque |
120,000 ft-lb |
| Spin Torque |
≈ 3,000 ft-lb |
| Spin Speed |
≈ 80 RPM |
These torque values allow the ST-120 to handle heavy drill-string connections on medium to large rigs.
Pipe Handling Range
| Parameter |
Value |
| Tubular Diameter Range |
3½ in – 10 in OD |
| Connection Height Range |
33 – 75 in |
| Horizontal Travel |
12 ft |
| Vertical Travel |
≈ 42 in |
This range covers most drill pipe, drill collars, and casing sizes used on rigs.
Hydraulic Requirements
| Parameter |
Value |
| Hydraulic Pressure |
2500 – 3000 psi |
| Flow Rate |
45 – 65 GPM |
The roughneck is powered by the rig hydraulic system.
Mechanical Data
| Parameter |
Value |
| Installed Weight |
≈ 19,800 lbs (≈ 9,000 kg) |
| Control Options |
Local or remote automatic control |
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