CD856A Rotary Drilling Rig
CD856A rotary drilling rig has been widely applied to construction engineering industry including highway, high-speed rail, subways and high-rise buildings, as well as large factories of steel and electricity.
As the representative model of small torque rotary drilling rig, this versatile hydraulic drilling machine has been exported to South Asia, Southeast Asia, West Asia and Eastern Europe.
Advantage
1. We utilize universal joint to maintain the connection between drill rod and connecting arm, whereby the drill rod is allowed for ±3° side raking, as well as forwards and backwards adjustments. Moreover, the verticality of drill rod is also ensured even in rugged terrains.
2. Hydraulic luffing cylinder and connecting arm form a triangle structure, thus promoting stability and performance.
3. Our rotary drilling rig is highly distinguished by outstanding energy efficiency. Based on same drilling diameter and depth, other deep foundation machines at same price level consume 3.3 to 3.8l/m, while our product only needs 1.6 to 1.85l/m!
Specification
| Drilling diameter | mm | 600 to 1500 | |
| Max. drilling depth | m | 56 | |
| Overall dimension | Drilling position | mm | 16500 × 3200 × 6720 |
| Transport position | mm | 13550 × 3200× 3200 | |
| Overall weight | kg | 38000 | |
| Engine | Model | Cummins B5.9-C | |
| Rated power | kW/rpm | 112 | |
| Design | Turbocharged direct injection | ||
| Drill head | Max. torque | kN.m | 80 |
| Speed | r/min | 1 to 22 | |
| Pull-down cylinder | Max. push force | kN | 150 |
| Max. pull force | kN | 100 | |
| Max. stroke | m | 2 | |
| Main winch | Max. pull force | kN | 120 |
| Max. pull speed | m/min | 70 | |
| Diameter of steel wire rope | mm | 24 | |
| Auxiliary winch | Max. pull force | kN | 60 |
| Max. pull speed | m/min | 50 | |
| Diameter of steel wire rope | mm | 18 | |
| Mast rake | Raking angle | ° | ±3 (side raking) |
| Forwards: 90, backwards: 6 | |||
| Base carrier | Max. travel speed | km/h | 3 |
| Max. grade ability | 40% | ||
| Min. ground clearance | mm | 430 | |
| Track shoe width | mm | 800 | |
