The machine-room-less elevator is the result of technological advancements that often allow a significant reduction in the size of the electric motors used with traction equipment. It is important to note that MRL elevators still require a secure room for the controller and associated components, as current regulations do not allow these to be located in the shaft.
However, the ancillary benefits of this new drive configuration – savings in time, money, and energy - has led to a growing market share in worldwide. The heart of the MRL is the compact gearless machine that is sized to fit directly in the elevator shaft. Gearless technology combines a smooth, quiet ride, extremely accurate levelling ability, and energy efficiency through the use of counterweights and regenerative drives.