The speed of a piston in a pneumatic system is primarily determined by what factor?

In a pneumatic system, the speed of a piston is primarily determined by the amount of metered outlet air. This is because the speed at which the piston moves is directly influenced by the flow rate of compressed air entering and exiting the cylinder. When the outlet air is metered, it regulates how quickly the air can escape from the cylinder, which in turn affects the speed of the piston’s movement.

A greater amount of air allows the piston to move faster, while a restricted amount causes slower movement. Other factors, such as the size of the piston and the solenoid valve, do play roles in the overall performance of the system, but they don't directly dictate the speed as the air flow does. The limit switch is used for positioning and safety but does not influence the speed of the piston movement in the same direct manner.