Beam Pumping Unit

Magnets widely used to Beam Pumping Unit. Coils under different magnetic polarity are energized with different-direction currents according to the polarity of the magnet to generate a uniform force, which pushes the active cell in certain direction. The currents through the coil under the neutral line will be reversed in order to generate a continuous thrust in the same direction. During the upward-stroke, the electromagnetic force generated by the pumping unit’s active cell and the gravity of the balance weight, which functions through the steel cable and the polished rod eye, work together to raise the sucker-rod to its maximum stroke.