912 305 168 lufkin air balanced pumping unit.
Air balanced pump jack.
Schlumberger conventional crank balanced and beam balanced pumping units are among the most respected and recognized brands in the rod pumping industry offering reliable cost effective performance at a competitive price.
In the early days pumpjacks worked by rod lines running horizontally above the ground to a wheel on a rotating eccentric in a mechanism known as a central power.
Manufactured to api standards these units deliver high reliability and quiet operations.