Elevators are platforms that can be opened or closed to lift or lower people and goods to and from floors. In the past, it was mandatory for floor buildings not to have elevators. As a result, some real estate investors avoid installing elevators because of their high installation and maintenance costs.
In the past, most elevators had to be controlled through a centralized machine room. Today, some elevators do not require a machine room because they have built-in safety mechanisms.
Geared and gearless traction elevators can be divided into three different categories:
- Traction elevator
This elevator has ropes running through wheels attached to a motor located above the shaft. The main function of the rope is to lift and lower the elevator car. It can be used both for mid to high-rise applications and for travel speeds much faster than hydraulic elevators.
Like other elevator types, the system uses a counterweight, which removes the weight of the passengers and car, making it easier for the motors to move the elevator load.
- Gear traction elevator
A gear lift consists of a motor with a gearbox attached. The main function of the gear is to power the wheels that move the rope. This type of elevator can operate at speeds of up to 500 feet per minute. The maximum distance it can travel is 250 feet.
- Gearless traction elevator
Gearless elevators do not have gears for speed regulation. This explains why they can move at 2,000 feet per minute and travel up to 2,000 feet. They are the best choice for skyscrapers.