Engineering consulting firms provide engineering services and expertise to companies in need of a specialized skill-set. Professionals in this category work with clients to define solutions to problems or to help determine and recommend the best course of action for a given initiative.
Electric linear actuators have an output rod that provides linear motion via a motor driven ball screw, lead screw, or ACME screw assembly. The actuator's load is attached to the end of a screw or rod and is often unsupported.
Motor controllers receive supply voltages and provide signals to motor drives that are interfaced to motors. They include a power supply, amplifier, user interface, and position control circuitry.