DC motors produce a high starting torque and power to drive equipment such as conveyor belts, elevators, cranes, and hoists. General purpose DC motors generate a constant torque throughout their speed range where a wide operating speed range with constant torque is required. Washdown DC motors can handle wet and high humidity environments. DC motor and control assemblies are for use on constant or diminishing torque applications such as a conveyor belt. Stepper motors can run for a specific interval, or step, allowing them to start, stop, and reverse direction. Hazardous location DC motors are for use in locations where hazardous vapors or combustible dusts are present.