The Machine Roomless Elevators save construction space to a large extent. The permanent magnet synchronous motored gear less machines have unapproachable superiority to the traction motor and save roughly 35% of energy consumption featuring excellent reliability and durability: they have a compact design, light weight & operate quietly and there is no need for lubrication.
Such elevators have become more and more popular because they run at low noise, are energy saving, easily maintainable and make the building look more aesthetically pleasing.
The PMSM Gearless traction machine is assembled by permanent-magnet synchronous motor, traction wheel and brake system through the encoder to achieve closed-loop control and frequency control operation.
Compared with the traditional products, the traction machine has high efficiency factor, high efficiency, low starting current is small, large starting torque, smooth running comfort etc.; use of rare earth permanent magnet materials, small size, light weight; no gear, low noise and high reliability.