Shenyang Taike Fluid Control Co.,Ltd

Shenyang Taike Fluid Control Co.,Ltd

What Is The Difference Between A Rotary And A Linear Actuator?


Actuators can be divided into two types depending on their motion. The two main actuator types are both rotary and linear. An example of a rotary actuator is an electric motor, which is an actuator that converts an electrical signal into its axis of rotational motion. On the other hand, the linear actuator generates non-rotational motion, such as sliding motion or piston movement, in response to the input signal. However, the difference is abstract, since the linear actuator can be constructed using its normal rotating electrical machine as its basis, and vice versa. In each case, the resulting initial movement is mechanically converted to another type of movement. The linear actuator can be electrically or pneumatically operated. Pneumatic diaphragm actuators are more popular for starting linear valves such as spheres, tees (steering or mixing) and angle valves. Pneumatic linear actuators have the simplest structure and provide very precise flow control.

A rotary actuator with an axis of 90 degree rotational motion is mounted on a rotary valve such as a ball, a butterfly, a cock and a ball valve. These actuators come from linear actuators and use linear gears or lever systems to convert linear motion into rotational motion. The actuator structure of the compressed air acting on the rotating blades rather than on the piston has not yet been formed on the market. The most popular pneumatic rotary actuator is a reciprocating piston cylinder assembly.

In contrast to the pneumatic actuator of the rotary actuator, the rotary motion of the electric actuator is inherent. Requires a complex linear unit to convert the rotary motion to a linear travel.

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