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The main advantages of electric actuators are high stability and constant thrust that users can apply. 

The maximum thrust generated by the actuator can reach up to 225000kgf, and only hydraulic actuators can achieve such a large thrust. However, the cost of hydraulic actuators is much higher than that of electric actuators.

The anti deviation ability of electric actuators is very good, and the output thrust or torque is basically constant, which can effectively overcome the unbalanced force of the medium and achieve accurate control of process parameters. 

Therefore, the control accuracy is higher than that of pneumatic actuators. 

If equipped with a servo amplifier, it is easy to achieve the exchange of positive and negative effects, and it is also possible to easily set the cut-off signal valve position state (keep/fully open/fully closed). 

However, in case of a fault, it must remain in its original position, which cannot be achieved by pneumatic actuators.

Pneumatic actuators must rely on a combination protection system to achieve position retention.