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The Epiroc Christensen CT20 is a high-capacity surface core drilling rig designed for deep exploration projects. Built for demanding conditions, the CT20 can achieve impressive drilling depths of up to 2,450 meters with N-size rods and up to 1,600 meters with H-size rods. Its modular design allows for mounting on a truck or crawler chassis, enabling flexible mobility across diverse terrains.
Powered by a robust Cummins QSL9 diesel engine (Tier 3 or Tier 4), the CT20 delivers 224 kW of output while maintaining low emissions and reduced noise levels, thanks to its insulated engine canopy. The rig's advanced control system features pilot hydraulics, ensuring intuitive and responsive operation across all core drilling functions.
Main Advantages
- Optimized feed system and four-speed rotation gearbox for efficient core recovery in deep drilling operations
- Hydraulic mast, mast dump and four adjustable outriggers for quick setup and site stability
- Safety-focused design with emergency stop, guarding around moving parts, and integrated spill protection
- Compatible with optional rod handling systems to minimize manual workload and increase operator safety
- Service support by Epiroc including diagnostics, preventive maintenance and overhaul
Technical Specifications
| Maximum drilling depth (N-size) | 2,450 m |
| Maximum drilling depth (H-size) | 1,600 m |
| Maximum drilling depth (P-size) | 1,055 m |
| Feed stroke | 3,500 mm |
| Feed force / Pull force | 100 kN / 200 kN |
| Rotation torque (max/min) | 6,245 Nm @ 110 rpm / 815 Nm @ 1300 rpm |
| Chuck max clamping diameter | 124 mm |
| Rod holder clamping force | 200 kN |
| Engine | Cummins QSL9, 224 kW (305 hp) @ 2000 rpm |
| Main winch lifting capacity | 17,800 kg |
| Auxiliary winch capacity | 1,800 / 420 kg |
| Total weight | Approx. 18,000 kg |
| Carrier type | Truck or crawler |
Need a reliable solution for deep core drilling on surface projects? Contact our team to configure the Christensen CT20 for your site conditions and technical requirements.