An electromechanical device which uses electrical pulses to achieve mechanical movements is termed as a stepper motor. It is also commonly referred to as a step motor or a stepping motor. Instead of working on the continuous applied voltage, stepper motors work by digital pulses. They are mainly used for controlling motion, that is positional control — rotational or linear.
The integrated lead screw motors have a stepper motor and a lead screw combined in one compact envelop, and provide better efficiency and torque without producing much noise; this type of stepper motor is expected to witness the fastest growth in demand in the near future. The stepper motor market growth is expected to advance at a 4.6% CAGR in the coming years, as mentioned in a P&S Intelligence study.
In recent years, many technical advancements have taken place, which have led to the miniaturization of many devices and equipment. This, in turn, has led to the demand for miniaturized machinery components. There has been a growing demand for the scaled-down stepper motors in the stepper motor market, due to the rising popularity of the miniaturized electronics.
Stepper motors are of the following types: integrated lead screw, fully-enclosed, and rotary. During 2013–2017, the demand was the highest for the rotary stepper motors. These motors are easily customizable depending on the special engineering and integration requirements. They are specially designed to provide increased torque and better efficiency. Further, there has been a surge in the hybrid technology-based rotary motors, which has been driving the demand for this type.
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Due to their versatile application, stepper motors are now being integrated with the waterproof technology. This has made these motors corrosion-free, thereby expanding their application area to an array of industries, such as undersea mining, industrial automation, oil exploration, and undersea exploration.
These motors come with hermetic cable feedthrough O-rings, factory-fitted shaft seals, and a pressure equalization system. Further, the waterproof technology has enabled the used of stepper motors in salvage robots, robotic submarines, automated undersea lights and cameras, and oil exploration equipment.
