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6/13/2017 8:20 pm  #1


Dazenelevator Commercial Elevator elevators

The main advantages of a hydraulic elevator are that there is no overhead Panoramic Elevator room, the cab area is maximized and there are minimal structural issues. The cost of a hydraulic elevator with installation is modest when compared with a traction elevator.

The main disadvantages of a hydraulic elevator are the environmental issues with the oil for the hydraulic tank and the noise and slow operating speeds.

Most elevators of more than seven floors are traction elevators. Basically, traction elevators are operated by cables driven by motors that haul the elevator cab up and down. Typically, traction elevators require an elevator room at the top of the elevator to house the motors, sheaves and cables.

The main advantages of traction elevators are speed and availability for high-rise use. The main disadvantages are the high cost of energy to operate the elevator, the cost of the equipment and installation as well as the structural support and elevator machine room.

There is a new option available for elevators of up to 20-25 stories, namely the so-called machine room-less system (MRL). Basically, this elevator incorporates many of the advantages of both the hydraulic and traction elevators, without certain disadvantages. Faster, quieter and less environmentally damaging than Commercial Elevator elevators, MLR elevators do not require the gears, structural reinforcement and roof top machine room nor do they have the power demands of the traditional traction elevator. There are estimates of 75% reduction in power use for a MLR elevator verses a traditional traction elevator in one year.

 

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