When are pneumatic or hydraulic piston actuators typically used?

Pneumatic or hydraulic piston actuators are commonly used when the force required exceeds that of diaphragm actuators. This is due to the fact that piston actuators are capable of generating higher forces than diaphragm designs, making them suitable for applications that demand significant mechanical power.

Piston actuators leverage the mechanical advantage of the piston area in relation to the pressure applied, allowing them to handle heavier loads and provide strong and precise movements that diaphragm actuators may struggle to achieve under similar conditions. This capability is particularly important in industrial settings where larger valves or heavy machinery require precise and powerful movement for effective control.

In comparison, diaphragm actuators are more suited for lighter tasks, and options related to low force requirements or specific environmental conditions such as temperature are not the primary consideration in the selection of piston actuators, further emphasizing their strength and capacity for high force applications.