A fit up rotator is a machine that is used to rotate and position workpieces for welding. It consists of a rotating platform and a set of jaws or clamps that hold the workpiece in place. The fit up rotator can be adjusted to various positions and angles, allowing the welder to easily access the weld joint from all sides. This makes it easier to perform high-quality welds in difficult-to-reach locations, and helps to improve the efficiency and accuracy of the welding process. Fit up rotators are often used in conjunction with fit up stations to prepare workpieces for welding, and are commonly found in fabrication and manufacturing facilities.