Zaber's A-LAR-E Series products are computer-controlled, lead screw driven, motorized electric cylinders with integrated motor encoders. They are stand-alone units requiring only a standard 48 V power supply. Each device is available in either an inline or parallel drive configuration. A 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.