Types Of Electric Actuators And Its Applications

Types Of Electric Actuators And Its Applications

Date:Jul 30, 2019

The actuator is a mechanical or electro-mechanical device which is used to offer controlled, positioning and sometimes limited movements which are functioned manually, electrically, or by a variety of fluids like air, hydraulic, etc. The two necessary motions are rotary and linear, where linear actuators vary the power into straight line motions, normal for positioning electrical actuator applications, and generally, have two tasks namely push and pull. Some linear actuators are not power driven and functioned manually by utilizing a rotating handle or hand wheel. Rotary actuators alter energy to provide motion of rotary. The main purpose of this is the control of several valves like a butterfly or ball. For various power configurations, each kind of actuator has different versions and available in various sizes and styles based on the application. Different types of electric actuators have versions for various power configurations and come in many styles and sizes depending on the application.

   Types of Electric Actuators

Basically, an electric actuator is one kind of gear motor which can be of various voltages and is the main torque producing component. To stop extreme current draw, electric actuator motors are generally set with a thermal overload sensor fixed in the motor windings. This sensor is energetic in series with the power source and unlocks the circuit should the motor be excited, then locks the circuit when the motor attains a secure operating temperature.

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An electric motor consists of an armature, an electrical winding, and a gear train. When power is supplied to the winding, a magnetic field is generated causing the armature to rotate. The armature will turn as long as there is a control to the windings when the power is cut, the motor discontinues. Typical end of travel limit switches, which are essential for an electric actuator, handles this mission.

These actuators rely on a gear train, which is attached straight from the motor to improve the motor torque and say the output speed of the actuator. The single way to alter the o/p speed is to fit a cycle length control module. This module lets an increase in cycle time only. If a reduction in cycle time is necessary, an alternating actuator with the preferred cycle time and correct output torque must be used.


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