Level compensators are primarily used to compensate for height differences on a work-piece surface.
Installation should be done in a manner that allows all of the level compensators to be fully extended while supported the load.
For special applications, such as sheet feeding, level compensators can be staggered so lifting begin at the edge or corner to assist in sheet separation.
Level compensators also serve as shock absorbers to prevent damage to work-pieces and allow greater positioning latitude for robotic applications.