Comparative Study of Characteristics between Hydraulic and Electric Actuators

Hydraulic actuators are compact yet capable of generating large forces, and have therefore been widely adopted in machinery systems that require high power output. In recent years, however, the electrification of hydraulic systems has been progressing across a wide range of industrial applications. This shift is driven not only by demands for improved energy efficiency, reduced noise, and concerns over oil leakage, but also by the enhanced performance of electric actuators. This paper presents a comparative analysis of the characteristics of hydraulic and electric actuators, and discusses the prospects for the development of both actuator types.