Reverse Circulation Drilling Rig
Reverse circulation drilling rig is a hydraulic crawler type drill rig which is new model, high efficiency, environmentally friendly and has multi-functions. It uses gas lift reverse circulation drilling technology and the resulting dust from the drilling can be collected effectively via dust collector to avoid pollution to the environment. Slag can be collected using cyclone separator, which can be used for sampling and analysis work in geological exploration department. It is a preferred drilling device for geological exploration, water well, monitoring well, geothermal pump air conditioning hole and others deep hole drilling.
ParametersProjects | RC-3 | RC-4 | RC-5 | |
Drilling ability | Diameter | 300m | 400m | 500m |
Length of drill pipe | 3m | 3m | 3m | |
Weight | Overall weight | About 7000kg | About 9000kg | About 12000kg |
Engine | Power type | Cummins 4-cylinder | Cummins 4-cylinder | Cummins 6-cylinder |
Power / rotational speed | 75kW/2200 rpm | 93 kW/2200 rpm | 132 kW/2200 rpm | |
Power head | High gear | 0 ~ 130 rpm | 0 ~ 90 rpm | 0 ~ 75 rpm |
0 ~ 4110 Nm | 0 ~ 8500 Nm | 0 ~ 8500 Nm | ||
Low gear | 0 ~ 65 rpm | 0 ~ 180 rpm | 0 ~ 150 rpm | |
0 ~ 8220 Nm | 0 ~ 4250 Nm | /0 ~ 5500 Nm | ||
Feeding system | Feeding stroke | 4000 mm | 4500 mm | 5200 mm |
Feeding force | 59 kN | 100 kN | 110 kN | |
Lifting force | 120 kN | 200 kN | 250 kN | |
Mast angle | 90 ~45° | 90 ~45° | 90 ~45° | |
Winch | Lifting force | 15kN | 15kN | 15kN |
Capacity | 25m (Φ8mm) | 25m (Φ8mm) | 25m (Φ8mm) | |
Crawler track | Speed | 3.5 km/h | 3 km/h | 2.5km/h |
Gradeability | 0 ~20° | 0 ~20° | 0 ~20° |
- Fast drilling — 20m – 40m drilling per hour
- Large torque — meet the requirements of air drilling, convenient for high and low speed adjustment
- Long stroke — meet the feeding requirements of the forward and reverse circulation 3m drilling pipe
- Wide angle — meet the construction requirements of vertical and inclined holes
- Good stability - mast sliding with outriggers to improve the stability of drilling
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