Are you aware that you use Actuators in your everyday life? Within every manufacturing plant, there are approximately different types of actuators they use to produce their products. From intricate industrial processes to everyday consumer products, electric actuators have become the driving force behind the seamless movement of various mechanisms. With their significant impact and use in a wide range of applications, Electric Actuators are vital components of technical industries.
Cair Euro Automation is the most prominent Electric Actuators manufacturer and supplier, we have partnered with thousands of customers for specific applications in every technical industry. Our goal is to manufacture products that suit our customers’ requirements which is why we have one of the largest range of Actuators possible.
This complete actuators guide aims to educate people on everything representing an actuator. We’ll go over them in great detail and from every perspective. Our initial focus will be on electric actuators because this is our primary product range; however, we must remember other types and will cover them as well, because understanding the advantages and drawbacks of all these other types is critical.
Principle of Electric Actuators
What are Electric Actuators
The electric actuator is an industrial product that creates the motion of a load or an action that requires a force, such as clamping, using an electric actuator to create the force needed. An electric actuator creates rotary motion by rotating the spindle of the rotor.
The Components of Electric Actuators
In this section, we will discuss the components of an Electric Actuator:
This element, manufactured from metal, is U-shaped, with holes in each and through which a pin, bolt, or fastening device is run. The actuator is allowed to be mentioned to the application by clevis attachments on the front and rear.
This is also called the cover tube. The actuator’s inner components are housed in an extruded aluminum tube that protects the linear actuators from the outside.
The Inner Tube
The extension tube is also known as the translation tube, piston, or drive tube. Typically, the inner tube is constructed of aluminum or stainless steel. While retracted, the spindle is positioned in the inner tube. This tube is threaded and connected to the driving nut, which expands and retracts as the nut moves along the revolving spindle.
This is also known as the rotating screw, the lead screw, or the lifting screw. It is a straight long rod that evolves in a tool or machine. Thus linear actuator section rotates retracting or extending the linear tube, resulting in linear motion. The steel spindle ensures longevity and strength. There are several methods for threading the spindle depending on the speed and load capacity.
This may be found near the end of the spindle. It prevents the inner tube from overextending.
Wiper Sealing Component
This is a sealing component that is connected to the outer tube’s end. It keeps impurities like dust and liquids out of the actuator’s spindle area, it also ensures a suitable seal between the inner and outer tubes, which influences the actuator’s IP rating.
This is connected to the inner tube and moves along the spindle. The component allows the inner tube to be retracted or extended. The drive nut is composed of plastic or metal and is occasionally sealed to prevent inner tube rotation.
How an Electric Actuator Functions
During the rotation of the spindle or rotor, the electric actuator produces a rotational motion. A ball screw nut turns the motor spindle. This actuator spindle is connected directly to a helical screw via the driving shaft.
During spindle rotation, the ball screw nut is forced forward or backward along the helical screw. A hollow piston rod is attached to the ball screw nut, and this creates linear motion into or out of the linear actuator during the engine’s clockwise or anti-clockwise rotating motion.
An electric drive controls the motor and allows the rotational speed, and hence the linear speed of the actuator, to be controlled. A feedback system gives positioning information, and the linear actuator may be programmed to move to and then move again, or return to its position test.
Types of Electric Actuators
There are several different styles of electric linear actuators available in the market, each with its advantages and disadvantages depending on the specific application. Here, we will explore the three main styles of electric actuators: Inline, Rotary Actuator, and Parallel.
Multi-Turn Electric Actuator
The Multi-Turn Electric Actuator, in comparison to a linear actuator, is a type of actuator that drives the rotating motion. It can be used in a variety of applications since it provides continuous driving action in either direction. However, torque and speed are crucial factors as high torque leads to lower speed. This issue to the motion of gear ratios. At Cair we are an expert manufacturer of Single Phase Multi Turn Electric Actuators and Three Phase Multi Turn Electric Actuators.
Linear Electric Actuator
Linear electric actuators convert electricity into linear motion, eliminating the need for intricate mechanical connections. They automate processes like manufacturing and aeronautical systems, improving productivity, flexibility, and location specificity. Cair, a leading manufacturer, specializes in manufacturing Single Phase Linear Electric actuators and Three Phase Linear Actuators, contributing to smooth automation in technology.
Quarter-Turn Electric Actuator
The Quarter-Turn Electric Actuator significantly advances automation, enhancing valve and damper control systems. These precision-engineered actuators offer a 90-degree rotating motion, enabling quick adjustments in marketing strategies. Used in industries like oil and gas, water treatment, and HVAC systems, they provide fast response and dependability. Their small form and programmable management features enhance efficiency and control in critical business applications. At Cair, we specialize in manufacturing Compact quarter turn Electric Actuator and Three Phase Torque Quarter-Turn Electric Actuators.
Explosion-Proof Electric Actuator
An explosive power supply is a crucial component for hazardous environments, such as chemical factories and oil refineries, ensuring safety and durability. Its robust systems ensure ventilation, heating, and protection. Burst-resistant electrical actuators play a vital role in industrial automation, providing precise control in volatile situations, and making them essential in hazardous environments where reliability is paramount. We offer a Compact Size Single Phase Ex Proof Quarter Turn Electric Actuator, and Three Phase Explosion Proof Multi Turn Electric Actuator.
How to Choose The Right Actuator for Your Application
Electric Actuators are used in applications that need force, in contrast to Pneumatic Linear Actuators which create force by applying pressure to the piston’s surface area. The force is created by the motor’s torque capabilities, with crucial characteristics such as load movement, surface frictional forces, and load elevation angle.
The maximum stroke for electric actuators is the useable stroke, which is less than four times helical screw pitch. They can be used in different places, and the screw pitch varies based on the bore, allowing for a wide range of application combinations.
When there is no compressed air supply or hydraulic alternatives are not accessible, electric actuators are chosen over pneumatic options. They have benefits such as various positions, low noise, excellent precision, load rigidity, flexibility, and lower operating costs.
Applications and Benefits of Electric Actuators
The Applications of Electric Actuators include,
- Electric Actuators are used in transport vehicles in the automotive industry
- These actuators are used in jointing methods and dispensing in the food and beverage industry
- They are used in robotic applications like milking robots.
- They are also used in materials handling operations in the packaging sector
- Electric Actuator is used in electronics assembly, robotics, machine tools, and various industrial sectors
- They are also used in upstream, midstream, and downstream, oil & gas plants, and pulp and paper plants
Advantages of Electric Actuators
- Easy Integration: Electric Actuators are simpler to integrate than hydraulic or pneumatic actuators. They come with programmable controllers and microprocessors for modern industrial machinery.
- High Precision Levels: they offer high levels of precision in motion control due to their ability to modify torque, speed, and force.
- Safety and Convenience: They are less susceptible to contamination or leakages, making them cleaner, safer, and more convenient
- Costs Less: They require less maintenance, are easy to operate, and are durable ensuring reliability in various environmental conditions.
Electric Actuators are devices that use electricity to create motion. There are various types of electrical actuators, each with its own set of characteristics. Electric actuators are more beneficial than their counterparts since they are easier to install, more accurate, and less expensive, to name a few advantages. They can also be used safely in a wide range of applications.
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