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Automation Glossary: Actuator

What Is An Actuator?

An actuator is a device that converts energy from forms such as electrical, hydraulic, or pneumatic into controlled mechanical motion. It plays a crucial role in enabling movement and control within various systems and mechanisms. By transforming the energy it receives, an actuator facilitates precise motion and positioning, which is essential in applications such as industrial machinery, robotics, and automotive systems. Actuators are often used for their ability to accurately respond to control signals for automated processes, ensuring efficient and reliable operation of mechanical devices and systems across multiple industries.

What Are Actuators Used For?

  • Robotics: Actuators are used to automate assembly lines with precise robotic arm movements, handle materials efficiently with grippers and conveyors, and perform machine tending tasks like loading and tool changes.
  • Machine Tools: Actuators enable high-precision CNC machining, control press brakes for accurate metal bending, and position lathes for precise turning and drilling.
  • Assembly & Packaging: Actuators help to ensure consistent torque for screwdriving, manage precise dispensing of adhesives and lubricants, and power mechanisms for efficient sealing, labeling, and packaging.
  • Material Handling: Actuators control conveyor systems for smooth transport, power robotic arms for pallet handling, and guide AGVs for autonomous movement.
  • Process Control: Actuators regulate fluid flow through valves, maintain temperature settings, and manage system pressure for safety and efficiency.
Automation Glossary: Actuator 1

Related Terms

Further Reading

ETH125 High-Force Screw Driven Electric Cylinder/Linear Actuator with Piston Rod
When comparing the Parker ETH 125 Ball Screw Cylinder with a comparable planetary roller screw cylinder, there are many factors to consider. Offering thrust forces to 114000N, strokes to 2.0m and an ISO125 compatible flange, the ETH125 electric cylinders close the gap to pneumatic/hydraulic actuators, offering a suitable replacement with
April 1, 2024
Automation Glossary: Actuator 4
A common trend in the industrial automation and robotics industries is looking for electric alternatives to pneumatic components. What is the benefit of switching from pneumatic to electromechanical actuators? Take a look at our top 5 benefits to see why it might be right for your operation.
February 24, 2021
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Calibration and Test Methods

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In the meantime, enjoy these fun facts…

Did you know… Cross Company is an ESOP (Employee Stock Ownership Plan). Our ESOP started in 1979 and as of 2006, we are 100% employee-owned! Learn more about our ESOP and how that benefits both team members and our customers.
Did you know... the precision measurement group at Cross was founded in 1939 by our current CEO's grandfather, Jim King. That's a whole lot of calibration!
Did you know... A fingerprint weighs about 50 micrograms. We know, we weighed it! The residue left from a finger can actually make a difference in weight results which is why we wear gloves when we calibrate weights. For reference, a sheet of paper is about 4.5 grams, that’s 4.5 million micrograms.
Did you know… Cross Company has grown significantly since our start in 1954. Over the years we've acquired 26 companies! Today, our five groups have expertise in everything from industrial automation to precision measurement, and industry knowledge going all the way back to 1939.