The Elevators without an engine room are the Machine Room-Less Elevators, or MRL for short, which made its debut in the 1950s. Machine rooms were thought to be vitally required for the smooth running of a lift as they started along the path toward widespread utilization. However, the machine room-free lift stood to overcome all difficulties as it reorganized how a typical lift performed.

Elevators without an engine room

There are only two different kinds of lifts: traction lifts and hydraulic lifts. Both of these are termed machine room-less lifts since they can be utilized without a machine room. This is true of all lift types. 

The method in Elevators without an engine room functions almost solely in the hoistway. 

The machines and governors are located in the hoistway, and the controllers are placed close to the hoistway’s outer front wall, eliminating the need for a separate machine room that would take up space. 

As a result, there is no longer any requirement for a machine room, which makes installing the machine room-less lift relatively simple for professionals.

What are Elevators without an engine room?

The fact that this particular MRL lift can also greatly reduce electricity use, frequently by 30% to 80%, is another compelling reason to look for one.

There is no longer a requirement for a room’s worth of apparatus that depends on the lift’s constant supply of electricity. 

Also, The machine room-free lift makes no use of any oil at all.

This is a significant plus because it makes riding safer by nature, which gives passengers more peace of mind.

The elevators without an engine room have a reputation for being incredibly well suited for low-rise buildings since it conserves time, space, and money while also having a simple design that is adapted to your demands and has fewer moving parts. 

Elevators without an engine room features

Elevators of this type are widely used in bus stations, airports, and work centers with many floors and shops, in addition to buildings that provide health, cultural and educational services.

Architects and building designers prefer machines that do not contain an engine room in terms of comfort and also in terms of energy saving.

One of the benefits of Elevators without an engine room is, Their low consumption of space contributes to reducing the space occupied within the building.

Because of its ease of application, it is suitable for all types of installations

equipment-less elevator machines, they are not ejected and do not cause any noise.

Machines that do not contain equipment in terms of the form of work can be trusted to the greatest extent, as they are silent and do not make any annoying sound.

In recent years, the quality of Elevators without an engine room and with machines without a gearbox has spread, and like any new product, it cannot be evaluated except after a sufficient period has passed for a comprehensive evaluation of it. 

Advantages and disadvantages of Elevators without an engine room

First: The advantages of Elevators without an engine room and with machines without MRL gearbox:

1. About 30% less energy consumption than geared machines and the reduction in consumption may reach more than 50% in the case of reusing the generated energy or returning it to the source.
2. Provide space and space for the machine room.
3. Less noise when operating.

Second: Disadvantages of machine roomless elevators  and machines without an MRL gearbox:

1) The initial cost may sometimes be relatively high compared to other elevators.

Maintenance and spare parts are very expensive and are almost monopolistic for the company that installed them.

The difficulty and length of some repair operations in general, in the case of the need to repair or replace the motor, for example, as this is normal elevators may take about one or two days,  But in the case of MRL it may take from one to two weeks, and also in the case of launching the speed regulator for any cause of the bullish standing close to the level of the last upper stop may require similar periods to fix.

Engine rooms occupy a specific amount of area in the buildings and have a specific structure.

Elevators without an engine room are incompatible with architectural aesthetics.

 Machines without cogwheels have been created on the theory that engine rooms take up space in buildings and detract from building aesthetics. 

With its single movement and frequency control, this machine offers excellent comfort for the cabin’s voyage during stops and takeoffs.

The difference between  machine roomless elevators and machine room elevator

Different Definitions:

The term “machine room-less elevators” refers to  Elevators without an engine room, whereas “machine room elevators” refers to elevators with machine rooms. They fall under the categories of “general machine rooms” and “small machine rooms.” The general machine room is bigger than the hoistway among them, and the little machine room is smaller than the general lift’s machine room.

Different Design

For users of home improvement lifts, the cost is considerable, and there are specifications for house building. 

The machine room lifts machine room is on the top of the lift, occupying a huge space. 

With machine roomless lifts, there is no need to build a machine room; a lift may be incorporated as part of the interior design of the home, freeing up space while also being flexible, convenient, and affordable.

Different load

Elevators with a machine room have better load capacity than those without. For commercial applications, machine room lifts are advised, whereas machine roomless lifts are suggested for residential use. 

The lift can accommodate households’ demands despite the modest number of passengers.

Ease of maintenance

The lift machine room contains control cabinets, traction devices, and speed limiters. Maintenance workers are free to fix or rescue passengers in the event of a lift malfunction.

Facilities for lifts without machine rooms are located at the top of the lift shaft, which makes maintenance challenging.

Read More: What is the best elevators for the disabled?