Choosing the Right Electric Actuator

Electric actuators are key parts in fluid control and factory automation. They move valves and other machines, and are known for being versatile, precise, and easy to control. But picking the right one for your needs isn’t so simple. Here’s a straightforward guide to help you choose the best electric actuator for your setup.

  • Torque and Force: First, figure out how much torque or force your actuator needs to have. This will make sure it can work well with the valve or machine it’s connected to. Look at things like the pressure in your system, the thickness of the fluid, and any extra weight the actuator has to handle.
  • Speed and Travel: Next, think about how fast and how far the actuator needs to move. This will depend on things like how quickly your system responds and how accurate the actuator’s position needs to be.
  • Control and Communication: Look at what kinds of controls the actuator has. Many can connect to different systems, whether they are analog, digital, or use special fieldbus protocols. Make sure the actuator can work with your existing control setup.
  • Environment: Think about where the actuator will be used. Things like temperature, wetness, dust, and chemicals can all affect how well the actuator works and how long it lasts.
  • Power Supply: The actuator needs power to work. Make sure your power supply fits with the actuator’s needs, including voltage and overall power use. This is extra important if your setup has limited power.
  • Duty Cycle and Lifespan: Know how long the actuator will be in use versus how long it will be resting. This is known as the duty cycle. Some actuators are built for constant use, while others are made for shorter, on-and-off operation.
  • Ease of Maintenance: Check how easy it is to take care of the actuator. Parts like brushes and gears may need to be replaced or fixed. Look for actuators that are easy to maintain.
  • Fit and Installation: Think about the actuator’s size and how it will be mounted. It should fit into your existing setup easily, so you don’t have to make big changes, saving you time and money.
  • Safety: In setups where safety is really important, look for extra features like emergency stops or feedback systems.
  • Cost: While the initial price matters, also think about long-term costs like maintenance and energy use. This will help you pick an actuator that’s cost-effective in the long run.


Picking the right electric actuator means looking at lots of factors like torque, speed, controls, where it’ll be used, power needs, lifespan, maintenance, fit, safety, and cost. Talking to experts and suppliers can give you even more insight into picking the best actuator for your specific needs.