Conveyor belts, elevators, cranes, and hoists are all driven by DC motors, which have a high starting torque and power. Generally speaking Where a large operating speed range with consistent torque is required, DC motors generate a constant torque across their speed range. Washdown Wet and high-humidity situations are no problem for DC motors. DC motor and control assemblies are designed for applications that require a constant or decreasing torque, such as a conveyor belt. Stepper motors can start, halt, and reverse direction by running for a predetermined interval, or step. a dangerous situation DC motors are designed for usage in environments with hazardous fumes or flammable dusts.