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Technical specification of KR300C rotary drilling rig |
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Torque |
320 kN.m |
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Max. diameter |
2500mm |
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Max. drilling depth |
83/54 |
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| Speed of rotation | 5~27 rpm | ||
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Max. crowd pressure |
220 kN |
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Max. crowd pull |
220 kN |
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Main winch line pull |
320 kN |
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Main winch line speed |
50 m/min |
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Auxiliary winch line pull |
110 kN |
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Auxiliary winch line speed |
70 m/min | ||
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Stroke(crowd system) |
6000 mm |
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Mast inclination(lateral) |
±5° |
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Mast inclination(forward) |
5° |
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Max. operating pressure |
35MPa |
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Pilot pressure |
4 MPa |
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Travel speed |
1.4 km/h | ||
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Traction force |
585 kN |
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Operating height |
22605 mm |
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Operating width |
4300 mm |
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Transport height |
3646 mm |
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Transport width |
3000 mm |
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Transport length |
16505 mm | ||
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Overall weight |
89t |
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Engine |
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Model |
CAT-C9 |
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Cylinder number*diameter*stroke(mm) |
6*125*147 |
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Displacement(L) |
10.8 |
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Rated power(kW/rpm) |
259/1800 |
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Output standard |
European III |
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Kelly bar |
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Type |
Interlocking |
Friction |
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Section*length |
4*15000(standard) |
6*15000(optional) |
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Depth |
54m |
83m |
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POWER
These drilling rigs have large engine and hydraulic capacities. This translates into the rigs being able to use far more powerful winches for the Kelly bar, crowd, and pullback, as well as faster rpm at higher torque when drilling with casing in overburden. The beefed up structure can also support the additional stresses put on the rig with stronger winches.
DESIGN
Numerous design features result in less downtime and longer equipment life.
The rigs are based on reinforced CAT carriers so spare parts are easy to obtain.