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 North America and 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.