DQ40 B VFD Top Drive System 300Ton 4000m Drilling Depth
|
Items
|
Data
|
(British System)
|
|---|---|---|
| Nominal drilling depth (114mm drill pipe) | 4000m | |
| Rated Load capacity | 2660 KN | 300 ton |
| Working height (96″ elevator link) | 5770mm | 18.93 ft |
| Rated continuous output torque | 50 KN.m | 36878 lb.ft |
| Max. Torque of breakout | 75 KN.m | 55317 lb.ft |
| Static maximum brake torque | 50 KN.m | 36878 lb.ft |
| Speed range of main shaft (stepless adjustable) | 0~180 r/min | |
| Drill pipe range of back-up tong clamping | 85-187mm | |
| Max bore hole of back up tong | 200 mm | 7.87 in |
| Mud circulation | 64 mm | 2.5 in |
| Rated pressure of the mud circulation | 35/52 MPa | 5000/7500 Psi |
| Rotation angle of rotating head | 0-360° | |
| Speed of rotating head | 2~5r/min | |
| Max.tilt angle of elevator link | Forward 30°, backward 55° | |
| IBOP(double ball valves ) | Φ187 6-5/8 REG 70MPa | |
| Saver Sub ( standard ) | Φ187 6-5/8 REG NC50 | |
| Working Pressure of hydraulic system | 0~14Mpa | 0~2280 Psi |
| Voltage of EX solenoid valves | 24 VDC | |
| Rated Power of Main motor | 470KW | 630HP |
| Rated Speed of Main motor | 1200 r/min | |
| Rated Torque of Main motor | 2308 N·m | 1702.29 lb.ft |
| Rated Voltage of Main motor | 600 VAC | |
| Rated frequency of Main motor | 61 Hz | |
| Rated current of Main motor | 365 A | |
| Max. speed of Main motor | 2400 r/min | |
| Electricity of VFD room | 600 VAC/50Hz | |
| Suitable ambient temperature | -45ºC~55ºC | |
| Altitude | ≤1,200 m | ≤3,937ft |
| Distance between center of main shaft and center of guide rail | 525 mm | 1.722 ft |
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