Advantages of Electro-Mechanical Actuators  

By Bob Wojcik

Sometimes Electro-Mechanical Linear Actuators (EMA) offer advantages that hydraulic or pneumatic linear actuators (such as cylinders) are unable to provide. These advantages may include:


  • Long lasting performance
  • Extended reliability
  • Integrated design
  • Reduced component count
  • Pre-engineered system including actuator, servo drive and software
  • Easy set up and installation


  • More accurate motion control
  • Low inertia motor for higher acceleration
  • Lower noise


  • Reduced maintenance
  • Reduced operating costs
  • Reduced energy consumption
  • Full range of options, sizes, and configurations
  • No leaks

Moog, Inc., with 60+ years of experience and expertise in the servo and proportional valve electronics development, has developed a line of Electro-Mechanical Linear Actuators that rival traditional hydraulic linear actuators in force and velocity performance. The Moog EMA can provide position accuracy to +/- 0.001” and speeds up to 63 inches/second. With four frame sizes and two styles, the EMA offer up to 33,700 pounds force in strokes up to 98 inches.

Moog’s MaxForce Pre-Engineered Electric Linear Actuation Solution is currently utilized in many industries requiring a high performance solution, such as:
•    Pressing systems, such as bearings being pressed into housings, in the manufacturing industry
•    Damper control in the power generation industry
•    Edge guide systems for web control in the plastic, sheet metal, and paper industries
•    Synchronized bottle filling in the food and beverage industry
•    Sintering pusher furnace in the powder metal industry
•    Tensioning in the plastics industry
•    Walking beam or parts movement in the automotive assembly line

Visit the Electro-Mechanical Actuators page for more information or contact Quality Hydraulics & Pneumatics, Inc. for hydraulic and pneumatic component sales, customer service and certified support. Phone: (847) 680-8400 Fax: (847) 680-5325 E-mail: