What is the Machine Roomless Elevator
The traditional elevator has a room, host, control panel are placed in the room. With the progress of technology, the miniaturization of the traction machine and electrical components, more and more people are not interested in the room elevator. The machine roomless elevator can save room, it takes the control panel, traction machine, overspeed governor to the hoistway, or use other technology to replace.
The characteristics of the machine room less elevator is no machine room, it can reduce the cost for the construction company. In additionally, MRL elevator generally use frequency conversion control technology and permanent magnet synchronous motor technology, energy saving, environmental protection, so it does not occupy the other space.
In 1998, the German LIFT HIRO introduced its innovative design to the counter-weight as the drive of the MRL elevator, after the development of the machine roomless elevator is very fast. Because it does not occupy the room space, green environmental protection, energy saving and other advantages, more and more people are using this elevator. In recent years, Japan, Europe has 80% - 70 newly installed elevators for the elevator without a room, only 30% - 20 of the elevator for the computer room or hydraulic lift.
A. The overhead type, permanent magnet synchronous traction machine is placed on the top of a hoistway traction, traction ratio is 2:1;
B. The underneath type: the permanent magnet synchronous traction machine is placed in the bottom of the hoistway, the traction ratio is 2:1;
C. Car top drive type: the traction machine is arranged in the car roof;
D. Counter-weight drive type: the traction machine is arranged in the counter-weight.