Elevators started being used in commercial buildings in the mid-1800s, and architects and engineers began designing taller builders as a result of this new technology. Hydraulic and Traction Elevators in Washington, DC are the two main types in use today. There are distinct differences between these kinds of equipment.
Hydraulic Models
Hydraulic elevators might be thought of as working like car engine pistons. A motor pushes hydraulic fluid into the elevator piston at the bottom, and the cab rises. When a valve opens and allows fluid to flow out, the cab descends. Within this broad category are several more specific kinds of hydraulic elevators.
Traction Lifts
Traction Elevators in Washington, DC rise and descend through the use of steel cables in a pulley system. A motor above the shaft operates the wheel on which the cable moves. These elevators are faster than hydraulic models and are typically installed in buildings with more than eight stories. The ride generally is smoother with this system. As with hydraulic lifts, there are different types of traction elevators, such as one with gears and one without.
Installation Considerations
Either type of elevator can be installed in commercial, residential, governmental and institutional buildings, with the provision that hydraulic models only be used for the shorter structures. The hydraulic cylinder’s length is directly related to how many floors the elevator must rise. The cylinder is underneath the cab, so the longer it is, the further down into the earth the contractors must dig. This becomes prohibitive for taller buildings.
Why Building Owners Choose Hydraulic Models
It may sound as though the traction elevator, as installed by a company like Elevator Technologies Inc., is best. Why then, do some buildings have hydraulic models? One reason is that they are significantly less expensive to install. Building owners may need to make that choice even though hydraulic lifts use a great deal more electricity. Visit the website to learn more about this particular company.
Some manufacturers have stopped producing hydraulic elevators. But, they are still important for lifting very heavy loads and for installation in buildings where a major renovation cannot be done.
