Which Technology?

The answer to this question, seemingly uncomplicated, aroused and still arouses much debate. To make things clear, we start to describe what are the technologies available. The world of the elevation is divided into two types of technologies:

• Traction Technology: it is an engine hoist (geared or gearless), positioned on top of the elevator shaft (with direct or indirect system), which moves a pulley and rope connected to a cabin (carrying people / goods) and a counterweight. There are other solutions where the motor can also be placed at the bottom of the pit, on the car or even on the counterweight.

• Hydraulic Technology: it is a hydraulic control unit (equipped with mechanical or electronic valve, pump and motor) connected, through a hydraulic hose, to a piston (or more) that pushes the cab from the bottom to the top through oil or fluid. The thrust can be directed centrally, direct and indirect side. The latter is the most used.

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