Rotating unions allow fluids to be transferred between stationary and rotating components or equipment

Swivel joints are used in fluid and pneumatic systems that require torsional rotation between flow lines.

Rotary switches move in a circle and can stop in several positions. There are two basic styles: single-deck and multi-deck

Rotary positioning stages are devices with tables or shafts that may be rotated to any angular position. They may be driven or simple slides

Hydraulic rotary actuators use a pressurized, incompressible fluid to rotate mechanical components

Incremental rotary encoders are multi-turn sensors that use optical, mechanical, or magnetic index-counting for angular measurement. They contain no absolute reference, but instead count relative to the turn-on position

Rotary position sensors include potentiometers, resolvers and a variety of magnetic and capacitive technologies. Sensors are designed for angular displacement less than one turn or for multiturn displacement

Rotary vane vacuum pumps and systems move media through the pump using a rotating assembly in the pumping chamber. Typically, there are two or more rotating vanes that move the media from inlet to outlet. Rotary vane vacuum pumps are positive displacement pumps

Rotary encoder disks are round or disk-shaped and have evenly-spaced holes or markings around their perimeter

Rotary tables are used to position items so that they can be machined, worked, or assembled

Rotary coded dual in-line package (DIP) switches are activated by a rotating shaft and have several stop positions. They use the DIP form factor so that arrays of multiple switches can be incorporated into a single package

Intermittent duty rotary solenoids convert axial motion into rotary stroke and are rated for on-off applications at less than 100% duty cycles. Like other types of solenoids, they convert electrical energy into mechanical power

Electric rotary actuators drive components rotationally via electromagnetic power. They typically have control and indexing capabilities

Absolute rotary encoders use optical, mechanical, or magnetic indexing for angular measurement. They do not lose their position after power-down, but instead provide absolute position upon power-up without requiring a home cycle or any shaft rotation

Rotary limit switches use physically-actuated levers to rotate a shaft and operate the contacts in a switch, making them change state