XCMG rotary drilling rig XR320D
1、It adopts dedicated hydraulic retractable crawler chassis and heavy slewing bearing and has high stability.
2、It adopts the luffing mechanism of large triangle form to ensure the stability of construction of big holes and deep piles in hard formation.
3、It adopts the front-located single-rope main winch structure to greatly prolong the service life of steel wire rope and lower the use cost.
4、It adopts the imported Cummins turbo-supercharged engine with three gears. Users can select corresponding gears according to different working conditions to achieve the effect of a drilling rig driven by three engines.
5、Normal mode and entering-rock mode of Rotary drive are available for operation in soil and rock to improve the construction efficiency.
6、Winch-pressurized and sleeve-driven functions are available for selection to satisfy various needs of the users.
7、It is equipped with a centralized lubrication system as standard configuration; maintenance is easy.
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Description |
Unit |
Parameter value |
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Max. drilling diameter |
mm |
2500 |
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Max. drilling depth |
m |
90 |
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Allowable luffing scope (from center of drill rod to slewing center) |
mm |
4100～4400 |
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Drilling rig dimension in working condition (L × W × H) |
mm |
10480×4800×25155 |
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Drilling rig dimension in transport condition (L × W × H) |
mm |
16550×3500×3500 |
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Weight of overall unit (standard configuration, excluding drilling tool) |
t |
92.8 |
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Engine |
Model |
CUMMINS QSM11-C400 |
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Rated power/speed |
kW |
298/（2100r/min） |
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Hydraulic system |
Max. working pressure of main pump |
Mpa |
35 |
|
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Max. working pressure of auxiliary pump |
Mpa |
30 |
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Rotary drive |
Max. torque |
kN •m |
320 |
|
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Rotational speed |
r/min |
5.5～21 |
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Crowd cylinder |
Max. Pushing force |
kN |
250 |
|
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Max. Pulling force |
kN |
250 |
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Max.stroke |
mm |
6000 |
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Crowd winch |
Max. Pushing force |
kN |
330 |
|
|
Max. Pulling force |
kN |
350 |
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Max.stroke |
mm |
16000 |
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Main winch |
Max.pulling force |
kN |
280 |
|
|
Max. single-rope speed |
m/min |
75 |
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Auxiliary winch |
Max.pulling force |
kN |
100 |
|
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Drilling mast |
Left/right inclination of mast |
° |
4/4 |
|
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Front/back inclination of mast |
° |
5/15 |
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Crawler |
Width of crawler plate |
mm |
800 |
|
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External width of crawler (min.-max.) |
mm |
3500～4800 |
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Center distance between two longitudinal wheels of crawler |
mm |
5175 |
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Average ground pressure |
kPa |
122 |
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