Zaber's X-GSR-E Series devices are motorized goniometers with a large diameter of rotation and long travel.

The built-in motor encoder allows closed-loop operation and slip/stall recovery features. An indexed knob provides convenient manual control for versatile operation even without a computer. With a low, narrow profile and asymmetric mounting options, these stages excel at angular scanning applications where keeping a clear view of the central target is critical. Curved crossed-roller supports give these devices smooth motion and the roller cam drive provides exceptional accuracy and eliminates backlash.