Electric linear actuators are crucial electromechanical devices designed to transform signals and energy into linear motions by driving the built-in gears. These must-have devices comprise a motor, a tube/worm, and a set of gears for converting the rotary motion of the motor into a linear motion. The resultant motion for the desired force is then used to lift, tilt, or push/pull objects using electrical AC and DC motors, pneumatics, or hydraulics. Actuators utilise various liquids as their energy source, such as pneumatic linear actuators, which use compressed air for their operation. Electrical linear actuators integrate into automated processes and are ideal for safe, clean, smooth, and precise motion control systems.
Unique Benefits of Electric Linear Actuators
An electric linear actuator offers a great range of benefits, such as:
- They are highly flexible with simple designs.
- Allow precise control with easy integration with other systems.
- Cost-effective, cleaner, and quieter devices with easier assembly.
- Provide maintenance-free and robust performance with smaller footprints.
- Use different motor technology with varied stroke lengths.
- Safer operation with a highly extended life span.
How Does an Electric Linear Actuator Work?
The electric linear actuator actuates linearly and is easily installed/works in different ways using either AC or DC motors. Linear motion is achieved with an extending or retracting rod or a track-moving slider and is generated using a lead screw. Roller screws are ideal for high forces, whereas ball screws are suited for precise positioning and control applications. The screw turns clockwise or counterclockwise, which triggers the shaft to move up and down and convert the rotary motion to straight or linear. It is worth mentioning that the stroke distinguishes it and refers to the screws or shaft’s length.
Crucial Considerations Before Choosing an Electric Linear Actuator
It is crucial to verify/ascertain certain parameters before selecting a specific actuator for your applications, which include:
- Stroke Length
- Force
- Speed
- Voltage
- Weight
- Motor Technology.
Different Types of Electric Linear Actuators
Linear actuators (electric) come in various types, including:
- Parallel Electric Actuators
- Electric Sliding Actuators
- Geared Motors
- Right Angle (or L) Shaped Electric Actuators
- Variable Height Electric Columns
- In-Line Electric Actuators
- Dual Engines.
Where Are Electric Linear Actuators Used?
Electric linear actuators are widely employed in various settings, including:
- Automotive and Robotics
- Domestic Uses
- Machine Tools
- Industrial Machinery
- Manufacturing Industry
- Packaging and Material Handling
- Valve Operations
- Food and Beverage Industry
- Cutting Equipment.
