|
Configuration parameters
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| Category |
Parameter item
|
JH7
|
| Dimensions and weight |
Length × Width × Height (mm)
|
4218×1965×2325
|
|
Overall weight of the machine
|
8.6T
|
|
|
Reference drilling capability
|
B specification
|
1400m
|
|
N specification
|
1200m
|
|
|
H specification
|
700m
|
|
|
P specification
|
300m
|
|
|
Power system
|
Engine
|
WEICHAI
|
|
Rated power
|
140 kW
|
|
|
Rated rotational speed
|
2000-2200rpm
|
|
|
Electrical system
|
24V
|
|
|
Hydraulic system
|
Main pump
|
28MPa-235l/min
|
|
Auxiliary pump
|
20 MPa-40l/min
|
|
|
Auxiliary pump
|
20MPa-40l/min
|
|
|
Auxiliary pump
|
16MPa-30l/min
|
|
|
Hydraulic oil cooling
|
Air-cooled
|
|
|
Rotating power head
|
Power head form
|
Plunger motor (manual speed control)
|
|
Maximum torque
|
1550 Nm /3000 Nm
|
|
| Maximum rotational speed |
1300rpm
|
|
|
Main winch
|
Steel wire capacity
|
/
|
|
Increase the pulling force
|
/
|
|
|
Speed up
|
/ | |
|
Auxiliary winch
|
Steel wire capacity
|
1200m @ 8mm
|
|
Increase the pulling force
|
Empty-line drum: 13KN Full-line drum: 4KN |
|
|
Speed up
|
Empty drum: 183 meters per minute Full drum: 600 meters per minute |
|
|
Input system
|
Feed rate | Speed control |
| Pushing force | 79KN | |
| Promotion power | 127KN | |
| Angle of entry | 45-90 ° | |
| Length of the drill pipe | 1.5m / 2m | |
|
Mud pump
|
form | Three-cylinder piston high-pressure pump form |
| Maximum flow | 200L/min | |
| Maximum pressure | 8Mpa | |
| Product manufacturing process | Spraying | Whole machine electrophoresis + KTL powder coating |
| Assembly | Standardization, modularization | |
