Semi-Direct Drive
Motor sheaves and belts are eliminated, which leads to a higher system efficiency and lower system maintenance costs.
Prime mover
Permanent Magnet Motor
A low-speed, high-torque permanent magnet motor that drives the gear reducer directly. No sheaves, no belts, and a far more efficient pumping unit.
93%+system efficiency
0belts or sheaves
Steplessspeed control
3D view needs WebGL.
Design features
Energy Saving
In addition to enhanced transmission efficiency by eliminating motor sheaves and belts, the motor efficiency is also improved compared to conventional asynchronous motors.
System Reliability and Minimal Maintenance
Other than efficiency, the motor reliability is also greatly improved.
Space Saver
Compared to conventional motors, our permanent magnetic motors are much more compact in design and eliminate the need of using a motor bracket for pumping unit applications.
Stepless Speed Change
ULT smart control allows the motor speed to be adjusted indefinitely up to the maximal speed.
Green Technology
Extremely low noise and low vibration design makes ULT permanent magnetic motors very environmentally friendly.
On site
Components
Technical details
Technical specification
ULT permanent magnetic synchronous variable frequency motor is a low-speed high torque motor specially designed for oilfield pumping units. The traditional belt driven system is eliminated; and the ultra-thin body is used to directly drive the reducer, which is efficient, energy-saving, safe, and reliable.
Conventional (high efficiency) asynchronous motor efficiency is 92%; and the sheave-belt transmission efficiency ranges from 78% to 84%. The total efficiency of a beam pumping unit with an asynchronous motor being the prime mover ranges from 72% to 77%.
ULT permanent magnetic motor efficiency is no less than 93%; and the sheave-belt transmission is no longer required. The total efficiency of a beam pumping unit with an ULT permanent magnetic motor being the prime mover is 93% or higher.
