Advantages
of Pneumatic Actuators • The biggest advantage of the pneumatic actuators is their failsafe action. By design
of the compressed spring, the engineer can determine if the valve will fail closed or open, depending on the safety of the process.
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Provide high force and speed, which are easily adjustable and are independent of each other
• Have a delayed response which makes them ideal for being resilient against small upsets in pressure changes of the source.
• Most economical when the scale of deployment matches the capacity of the compressor.
• Provide inherent safety and are ideal for hazardous and explosive environment.
• Low component cost and smaller footprint.
Prices for non-repairable, rod-type cylinders range from $15 to $250 depending on body diameter, stroke and options. Limitations of Pneumatic Actuators
• Maintenance and operating costs can be high, especially if a serious effort has not been made to quantify and minimize the costs. Maintenance costs include replacement cylinder costs and plugging airline leakages whereas the operating costs include
the cost of compressed air, i.e. electricity for the compressor.
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