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News

More productivity with optimally cushioned pneumatic cylinders

Festo : 22 February, 2014  (Technical Article)
Festo has issued a whitepaper to help engineers and designers understand the advantages and disadvantages of various cushioning technologies, so they can improve their processes.
More productivity with optimally cushioned pneumatic cylinders
There are various ways of cushioning pneumatic drives. They differ greatly in their mode of operation and performance. These are some of the important types of cushioning:
 
Mechanical and elastic cushioning
Operational principle: coil springs or elastic buffer materials cushion the impact at the end position
Pneumatic and servopneumatic cushioning
Operational principle: braking effect generated by air compression or a controlled countercurrent of air
Hydraulic cushioning systems
Operational principle: braking effect generated using viscous fluids such as oil
 
Elastomer buffers and pneumatic cushioning types are well established particularly in automation technology and in plant and machine building because of their price and cushioning performance. They are the types most commonly used in practice. In order to ensure that the cushioning performance is as effective as possible, it is important to select the most suitable type of cushioning for the application in question. 
 
More Productivity with Optimally Cushioned Pneumatic Cylinders outlines the benefits of end-position cushioning systems in pneumatic drives and highlights the latest end-position cushioning technology for pneumatic cylinders.
 
“Good end-position cushioning decreases the impact forces generated by changing loads and extreme dynamic stress – factors that play a crucial role in defining the travel time and speed of pneumatic cylinders,” says Steve Sands, product manager at Festo.
 
With the right end-position cushioning, machine builders can significantly increase the efficiencies of their entire pneumatic systems and when used to its full effect, it can improve cycle times and even reduce the size of the components used.
 
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