Air cylinders are widely used for applications requiring rapid, repetitive motion. They excel at doing this because their reliable, long-life operation does not generate heat. What air cylinders are not so good at is moving a load at low speed or reacting to subtle changes in pressure without producing jerky, erratic motion.
That may be the case with conventional cylinders, but rolling-diaphragm cylinders eliminate the need for a dynamic piston seal, which is the main source of erratic operation in conventional air cylinders.
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