Feature

Power, precision, and practical efficiency

Electric motors are the workhorses of modern industry. From packaging and assembly to robotics and material handling, almost every motion depends on them. Studies suggest that motors account for around two-thirds of all electricity consumed in industry. Therefore, even small gains in efficiency have a measurable impact, not only in energy costs but also in meeting wider environmental and regulatory goals.

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Servo systems, however, present a distinct challenge. Unlike fixed-speed induction motors that run at a steady rate, and can be easily classified and assigned a rating, servo motors operate dynamically. They accelerate, decelerate, reverse, and hold position thousands of times per hour. Their operating conditions vary constantly, making it difficult to assign a single efficiency rating.

Understanding where losses occur, and how to minimise them, is key to improving performance across the system.

Read the full article in DPA's December 2025 issue

Written By Sophia Bell

Sophia Bell is the Group Editor of DPA, Connectivity, and PBSI. She joined the team in 2020 as Assistant Editor after achieving a First-Class Honours BA in English Literature and Film Studies from the University of East Anglia. In her current role, she leads the editorial strategy, driving digital growth and ensuring each title continues to deliver trusted, relevant insight for engineering and manufacturing professionals.