The Differences Between Rotary and Linear Pneumatic Actuators
Pneumatic Actuators are Linear or Rotary
Linear Pneumatic Actuators can move something in a straight line. Linear Pneumatic Actuators use a piston with compressed air applied to achieve linear motion. The output motion of Linear Pneumatic Actuators is in line with the piston rod and/or cylinder.
Rotary Pneumatic Actuators can move something in a circular motion. The output motion of Rotary Pneumatic Actuators is perpendicular to the shaft. Rotary Pneumatic Actuators contain pneumatic piston-operated rack & pinion assemblies, vanes, or other means to achieve rotary motion.
What does a Rotary Pneumatic Actuator do?
Rotary Pneumatic Actuators are commonly used to convert compressed air pressure (in the form of a cylinder stroke) into an oscillating (pendulum-like) rotary motion. Rotary Pneumatic Actuators transform pneumatic energy into mechanical rotation. They use the pressure of compressed air to generate oscillatory rotary motions.
What does a Linear Pneumatic Actuator do?
Linear Pneumatic Actuator
Linear Pneumatic Actuators move things in a straight line. For example, a rod is moved in and out of a cylinder a linear motion by a pneumatic energy source. The push-and-pull action will allow the device to slide, tip, and lift items with the push of a button.
Linear Actuator
How are Linear and Rotary Pneumatic Actuators powered?
Linear and Rotary Pneumatic Actuators generate operating energy through the efficient use of compressed air. The air builds up force or pressure which is applied against a piston or diaphragm. This moves the piston rod on a rod-style actuator or carriage assembly on a rodless style. Mechanical motion is the result. Linear and Rotary Actuators can be pneumatic, hydraulic, or electric.
In what ways are Linear and Rotary Pneumatic Actuators different?
Linear Pneumatic Actuators move in a straight line, usually in a back-and-forth motion. In contrast, Rotary Pneumatic Actuators move in angular degrees with reference to a mid-point, that is, along a circle. Unlike Linear Pneumatic Actuators, some Rotary Pneumatic Actuators are not restricted by the distance they can travel.
How are Linear and Rotary Pneumatic Actuators typically used in Manufacturing Processes?
Linear Pneumatic Actuators can be used for any straight-line movement including:
Opening and locking doors
Controlling valves
Closing dampers
Transferring parts
Braking machine motion
Conveying
Clamping
Clamping
Pressing
Positioning
Pushing-pulling
Pick & place
Lifting-lowering
Rotary Pneumatic Actuators are commonly used in industrial applications including:
Controlling valves
Transferring parts
Conveying
Clamping
Positioning
Pick & place
Why are Linear and Rotary Pneumatic Actuators used in so many industries?
They are durable, offer simplicity, and high force for their size. They can operate in hazardous environments. They are often preferred in applications where rapid opening or closing is required. Linear and Rotary Pneumatic Actuators are versatile in their applications and environments. They can usually operate at a wide range of temperatures. Their typical temperature range is: -40° F to +250° F.