Why Use an Electric Actuator?

In many ways, electric actuators are the holy grail. They are precise, efficient, fast to respond, have low support requirements, can be bought cheaply, can be easily retrofitted into existing environments, and in principal can be configured for absurd output torque. There aren’t a lot of downsides here. We’ve harnessed hydraulic and pneumatic power to move things, but that was always a multi-step procedure. With electronics? Nearly everything is built right into the actuator.   Minimal Install Requirements Facilities using hydraulics and pneumatics need to provide hoses, valves, pumps, compressors, reservoirs, and more. It’s a lot of hardware just to make something move. That’s a lot of money, maintenance time, and space just to have your fully automated, multi-zone heating system. It’s a lot even if you’re automating a brewery or bakery, where the equipment will ultimately save time and money. Facilities using electrical actuators however, need only provide power and control signals. In some cases, multi-phase power is required, but that mostly boils down to some extra electrical panels and service wires. Each actuator is pretty much independent and will operate regardless of what the rest of the facility is doing. That’s less hardware to keep track of, fewer failure points, and overall easier maintenance. In terms of a retrofit in existing facilities, that pretty much means you remove the old actuator, install the new one, and plug it in. In principal, it’ll just plugin and work. It’s hard […]

Read More →

Why Are There So Many Types of Actuators?

Actuators are really complicated. There’s a whole little ecosystem around them, all to provide exactly the right type of movement for every application. In principal, an actuator’s just moving something a few inches or a few degrees, but the way it moves really matters. This has lead to actuators with different types of movement speeds, different levels of precision, different return systems, and a lot of complicated terminology about what you’re actually buying into.   3 Types of Performance One of the key metrics is performance and the price it takes to achieve it. Consider for example, the damper actuator in your air vent. It doesn’t matter too much if it takes a minute or two to fully open as long as it works quietly and within the temperature range of your home. Compare this to an industrial fast-acting actuator on the safety systems in an oil refinery. When the plant alarm goes off that something’s might explode, you want that valve to slam shut with all the force of the hulk hitting the snooze button in the morning. In your home, a little electrical actuator would work just fine. In that refinery however? That needs something special. There, you need a pneumatic system that can throw thousands of pounds of force into a valve near instantly. There’s just no other good way to get the job done in a fast manner. Electrical motors on the rise but, in these […]

Read More →