The elevator is an open or closed platform that lifts people or goods up to the upper level inside the building. The elevator is a standard part of any high-rise commercial or residential building. Most modern elevators are automated, operating the elevator individually or in groups using various control systems. Elevator Supplier now offer a variety of control systems. The earliest automatic control system, single auto button, allows users to travel by car alone. Suitable for small apartment buildings and freight elevators. In the 1950s, automatic button control systems replaced manual controls. In the 1970s, electromechanical controls were gradually replaced by solid state electronic controls.

Initially, the hydraulic cylinders were integrated, which meant that a hole had to be dug under the elevator shaft, just as high as the elevator. Later multi-section telescopic hydraulic cylinders allow for shallower holes. In many cities, the hydraulic power of these early elevators was provided by power companies, which installed and maintained hydraulic pipeline networks throughout the city.

In another design called a two-layer, weightless elevator, the two cars are connected at both ends of the same cable and are effectively balanced with one another, eliminating the need for counterweight.

Electric elevators have two significant advantages. First, electricity is clearly available, and any building that may be equipped with an elevator will also have electricity. Secondly, the height of the hydraulic elevator is strictly limited, and the elevator uses a simple cable and pulley system with almost no height restrictions. For many years, electric lifts have used direct current (DC) motors or alternating current (AC) motors. Today, almost all elevators use one of two types of AC motors: the most common is an electric motor with an elevator speed of 500 feet per minute (153 meters per minute) and a direct drive motor for high speed motion. elevator. speed. Some modern high-speed elevators can reach speeds of up to 2,000 feet per minute (610 meters per minute).
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