Elevator Machine Replacement Services in San Francisco
After a number of years a traction elevator machine may sustain sufficient degradation that it needs to be completely replaced. At times a partial elevator machine replacement is warranted, such as a conversion from a DC machine to an AC machine where the motor is replaced. The MG set may be discarded and an AC drive used. Some of the older machines are sufficiently robust to give great service for many more years, even after 30 to 40 years of hard use. Other older machines have been replaced long before an equal period of time. Our vast experience with many types of equipment allows us to recommend the solution that will ensure that your modernization money is well spent and that the upgraded elevator will give many years of reliable service.
Traction elevators are usually geared machines, located either in a rooftop penthouse or in a basement machine room when a penthouse location is not available. Geared technology combines a smooth, quiet ride, accurate levelling, and energy efficiency through the use of counterweights.
Modern traction elevators use a variable voltage, variable frequency (VVVF) drive to improve ride quality and reduce energy consumption.