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Machine Room-less (MRL) Elevator |
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Machine room-less (MRL) elevators include machinery and equipment into the hoistway or closets, doing away the need for a separate machine room. This system employs a smaller sheave than conventional geared and gearless elevators. The reduced sheave size, together with a newly designed machine (Permanent Magnet Synchronous Motor PMSM) allows the machine to be mounted within the hoistway itself—eliminating the need for a bulky machine room on the roof.
Benefits:
- MRLs save space by placing the compact, gearless machine directly in the elevator shaft.
- There is no need for a roof top machine room, which lowers building construction costs.
- Gearless machine and counterweight configuration of MRL increases energy efficiency and provides a smooth, quiet ride.
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