The machine-room-less (MRL) system was introduced into the building industry in the early 1990s. In Iran, barrel-type gearless motors can be installed as roomless systems. Below is more information about this system:
A roomless elevator (MRL) refers to a system where the rooftop motor room in a conventional gearless elevator is eliminated. Instead, the entire motor and control system is placed within the elevator shaft, specifically in the overhead (top) of the shaft.
Roomless elevators entered the global elevator industry in 1990. The absence of a motor room on the roof or building's upper floors has been widely welcomed by architects and building designers. Additionally, the financial savings in construction materials is considered a key advantage.
One common question is which motor should be used for the roomless system. It's important to note that large and heavy gearbox motors cannot be installed in a roomless configuration. Gearless elevator motors, which are synchronous and do not have a gearbox, are suitable for roomless elevators, provided specific conditions are met. The hoisting system for roomless motors is typically executed in a 2:1 configuration.
Global Manufacturers of Roomless Motors:
Some notable global companies manufacturing roomless motors include Schindler, Kone, Ziehl-Abegg (Germany), Alberto Sassi (Italy), Montanari (Italy), Sicor (Italy), and Wittur (China). In Iran, Ziehl-Abegg, Wittur, and Montanari motors are among the most popular gearless and roomless motors on the market.
According to the Iranian Standards Organization and established regulations, barrel-type gearless elevator motors can be installed in roomless configurations. It is essential to note that in such systems, the clearance and overhead height differ from those in gearless elevators with a motor room.
Applications of Roomless Elevators
Roomless elevators are ideal for buildings with height restrictions or in cases where having a motor room would disrupt the architectural design and aesthetics of the building.
| Description | Feature |
| 1 | No rooftop motor room |
| 2 | Utilizes gearless systems and their advantages |
| 3 | Compact parts, no need for oil (gearless motors) |
| 4 | Reduced construction costs for the motor room |
| 5 | Lower material usage for motor room construction |
| 6 | Easy access for technicians to all equipment inside the elevator shaft, with a small motor for easy handling |
Conclusion
Owj Lift offers a variety of elevator systems, including gearbox, gearless, hydraulic, and roomless systems, with over 22 years of experience. For more information, pricing, and free consultations, contact 0513103.