J73D
Yellow
Oil Exploration
Oil Machinery
Oil Drilling Rig
CRRC Yongji
China
Product Description
Direct Drive Motor For Oil Drilling Rig
With the depth of oil prospecting and exploration, the oil drilling industry is moving towards deeper sea and deeper land, and the drilling process has put forward higher requirements on the performance of oil drilling rig. CRRC Yongji Electric follows the market development, has developed the direct drive motors for rotary table, winch/hoist, mud pumps for oil drilling rig.The application of direct drive motor can remove the large reduction gearbox, a kind of mechanical transmission device, which reduce the middle fault point, improve transmission efficiency,reduce the maintenance of equipment.
Advantage of direct drive motor
·Low speed, high torque
·Simple structure, easy maintenance
·Environment protection, low noise
| Application | Type | Rated power(kW) | Rated torque (N·m) | Rated voltage (V) | Rated current (A) | Rated efficiency (%) | Power factor | Rated speed (r/min) | Max. Speed (r/min) |
| Rotary table | YJ243 | 600 | 14314 | 600 | 728 | 93 | 0.86 | 400 | 783 |
| Winch/hoist | YJ71 | 600 | 119956 | 600 | 728 | 93 | 0.86 | 96 | 370 |
| 800 | 119956 | 600 | 728 | 93 | 0.86 | 88 | 370 | ||
| 1000 | 90952 | 600 | 1350 | 91 | 0.8 | 105 | 450 | ||
| Mud pump | YJ265 | 600 | 14314 | 600 | 768 | 94 | 0.8 | 505 | 700 |
| Top drive | YJ73D | 800 | 70020 | 660 | 948 | 91 | 0.83 | 109 | 27740 |
