Common electric elevator types are the drum or chain elevator, as well as the traction sheave elevator. These systems are part of the rope elevator systems.
In the drum and chain elevator, the car is suspended on ropes or chains that are wound onto a drum or sprocket, causing the car to move upwards.
In the traction sheave elevator, the car hangs on suspension cables that are guided over a grooved traction sheave and carry a counterweight at the other end. This drive is based on the friction between the suspension cables and the traction sheave and acts like a pulley, in which the travel speed can be increased by further installed rope pulleys. The engine compartment is usually located above the elevator shaft, except in systems without an engine room, where the drive is installed in the elevator shaft.
Rope elevators can reach speeds of up to 10 m/s, which is why they are particularly suitable for high lifting heights, even if they are more expensive to purchase and maintain than a hydraulic elevator.
Drive rope elevator
Source: bauwion
