What is the main advantage of using machine-room-less (MRL) elevators?

The primary advantage of machine-room-less (MRL) elevators is their ability to save space and reduce construction costs. MRL elevators eliminate the need for a dedicated machine room, which is typically required for traditional traction elevators. The machinery is instead integrated within the hoistway or directly above the elevator shaft. This design not only conserves valuable building space but also minimizes the overall footprint of the elevator system. Consequently, this leads to reductions in construction costs, as less space must be allocated for vertical infrastructure.

Additionally, the compact design of MRL elevators can enable more flexibility in architectural design and can be particularly beneficial for buildings with height restrictions or limited usable area. This makes them an attractive option in urban environments where maximizing usable space is often a key consideration.