Solenoids and actuators are key components in various mechanical and electronic systems, designed to convert electrical energy into mechanical motion. Solenoids typically consist of a coil of wire that generates a magnetic field when electrically energized, thus creating a pulling or pushing force on a metal plunger or ARMature. This straightforward design allows for precise control over movement, which is essential in applications requiring quick and repeated actions. Actuators, while similar in function, are more complex devices that can use electrical or hydraulic power to achieve more varied movements such as rotating, tilting, or linear displacement. Their main functions include controlling valves, moving mechanical ARMs, and activating locking mechanisms, among others.
The primary uses of solenoids and actuators span across numerous industries, including automotive for operating door locks and gear shifts; industrial machinery for controlling hydraulic pumps or sorting devices; consumer electronics for enabling haptic feedback; and home automation for motorized blinds and security systems. Their defining characteristics are reliability, durability, and precision in performance. These products are often preferred for their compact size, simple design (in the case of solenoids), and ability to provide significant force from a relatively small package. Some well-known manufacturers of solenoids and actuators include Johnson Electric, Mitsubishi Electric, and Honeywell, among others.