Drilling & Geotech
Iron roughneck (MMIRN)
A compact, hydraulically driven iron roughneck designed specifically for geotechnical drilling rigs – keeping operators off the drill floor.
Making up and breaking out drill pipe by hand, chains and tongs, is one of the most hazardous jobs on a drill floor and modern HSE expectations increasingly rule it out. Our iron roughneck automates it: it connects and disconnects drill pipe under remote control, to a calibrated torque, removing operators from the danger zone. It was engineered to fill the gap between high cost oil-and-gas roughnecks and non-compliant alternatives, compact, fit-for-purpose and sized for geotechnical rigs.
What it does
- Make & break, remotely – connects and disconnects drill pipe under remote control, removing manual handling of chains and tongs.
- Calibrated, repeatable torque – make-up to a set value, with manual back-up.
- Hardwired safety (no PLC) – full safety interlocking in hardwired logic for robust, inspectable operation.
- Mobilisable – container-mobilisable; designed to suit single- and twin-mast geotechnical rigs, and configurable to a derrick’s structure and height constraints.
MMIRN MK2 – specification
| Pipe joint range | Ø60–380 mm (2⅜”–15.0″) |
|---|---|
| Make-up torque | 7,036 kgf·m (50,891 lbf·ft) |
| Break-out torque | 9,280 kgf·m (67,122 lbf·ft) |
| Clamping force | 25,650 kg (56,548 lb) |
| Travel | Horizontal 1,400 mm · vertical 675 mm · connection height 600–1,275 mm |
| Hydraulic pressure | 270 bar |
| Assembly weight | ~2,900 kg |
| Dimensions (L×W×H) | 4,400 × 1,490 × 2,550 mm |
| Mount & control | Bolted; remote panel (pedestal or driller’s cabin) with make-up torque gauge and safe-position display; can torque against the power swivel (bit breaker); hardwired interlocking, no PLC |
Continuously developed across multiple builds (MK1 through the current MK2) and delivered across multiple geotechnical drilling rigs. Offered ex-works as a standard product. Proven in service, see the case study.