Traction Elevator Machine

Rope elevators are driven by the traction machine located in the rooftop machine room. There are geared- and gear less-type traction machines. The gear less-type traction machine, through the latest inverter control, offers smoother acceleration and deceleration than the geared-type traction machine which uses a reducer. A motor is attached to a sheave (a toothed pulley), with a rope or cable looped over it. The rope is attached at one end to the lift car, and on the other end to a counterweight. When the lift is called to a floor, the motor turns the sheave.