Hydraulic Platform Elevator is generally used in vehicle service stations to elevator vehicle with a platform for its service. It is available in different sizes and can be customized according to the industry requirements. One of the best features of this elevator is that it works on the electro-mechanical principle which requires no ropes and wires. It is safe and easy to use and made with quality material to provide great strength to hold up to 5000 kilograms of weight.
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The mechanism of a platform elevator might seem simple, but in actual, it isn't. The platform elevator drive systems are of three types, each of which has its own advantages and disadvantages. Electrical inputs from the call buttons control the modern platform elevators. These inputs send signals to a central processor unit, that starts motors or pumps, as required.
This drive system is one of its kind. For operations, it uses a steel screw pole that runs the shaft's full length. The motor on the platform and drive nut on the screw are attached to each other. This mechanism on which an elevator movies up and down, works based in the direction in which motor turns the nut. During the installation of this system, a supporting wall is needed especially on longer travel elevators so as to stabilize the unit. One has to routinely lubricate the thread, via a self lubricating system. The disadvantage of this system is screw and drive nut thread's wear and tear. As one side of the elevator is used to conceal the screw thread, only three sides of elevator shaft can be glazed.
Hydraulic drive system is another drive system in this list. This system has a elevator platform that is attached to a hydraulic ram. A pump in this system pushes the hydraulic fluid from a central reservoir into the ram for the movement of the elevator. To rise the elevator, ram extends. And the flow of hydraulic fluid is reversed to lower the elevator. The disadvantage of this particular system is that it requires an additional space for a pump and reservoir unit. The other problem than rises in this system the odor given off by hydraulic fluid in hot weather.
The last drive system is encapsulated chain drive system, whose key part is the chain encased in a polyurethane plastic casing. This guides the chain and also ensures that slippage is impossible. The chains are attached to a driveshaft which is turned by a motor and gearbox at top of the shaft. Either side of the platform has chains attached. During the rotation of the driveshaft, chains are either pushed or pulled, moving the system upwards or downwards. Durability factor of this system gives the advantage to the elevator installer. As the chains run in the corner, one can glaze all four sides of the elevator.