Machine Room Less (MRL) Elevator

Suppose you are looking to install an elevator in your building. You may have come across the term machine room less elevator. But what exactly is a machine room-less elevator? In this article, we'll delve into the concept, how they work, and the advantages they offer. We'll also discuss the types of buildings suitable for machine room-less elevators.

Table of Contents

What is MRL Elevator?

A machine room-less elevator, also known as an MRL elevator, is a type of elevator that does not need a separate room for machinery. Machine room-less elevators use a traction system, allowing the machinery to be within the hoist-way or the elevator car shaft. It offers a lot of building design and layout flexibility since it does not need a machine room.

How Does Machine Room Less Elevator Work?

Machine room-less elevators use a traction system to lift and lower the elevator car. This system consists of a motor, gearbox, and ropes or belts. The motor generates power to turn the gearbox, which drives the ropes or belts that lift the car. The ropes or belts attach the car and counterweight to balance the weight of the car and passengers.

The critical components of a machine room-less elevator include the hoist-way, car, and controls. The hoist-way is the shaft that contains the elevator car and is made of steel or concrete. The car is the enclosure that carries the passengers, and the controls are the systems that regulate the operation of the elevator. In various applications, you can use it for passenger, freight, and service elevators.

What Are The Advantages of Machine Room-Less Elevators?

Some of the main benefits include the following:


Machine room-less elevators are more cost-effective to install. This system can make elevators more attractive if you want to save on construction costs.

Building Design Flexibility

Machine room-less elevators have a smaller footprint. The machinery is within the hoist-way rather than in a separate room. This is beneficial in buildings with limited space or unconventional layouts.

Energy Efficiency

Machine room-less elevators are more energy efficient. This efficiency is due to advanced motors and control systems.

Longer Lifespan and Lower Maintenance Costs

Machine room-less elevators have a higher upfront cost. But they tend to have lower ongoing maintenance costs and a longer lifespan. This lifespan makes them a more cost-effective option in the long run.

What Is Best Suitable For Machine Roomless Elevators? 

Whether to use a machine room or machine roomless elevator depends on several factors, including the height of the building, the size of the shaft space, and the expected passenger traffic. Machine room-less elevators are typically more space-efficient than elevators with a dedicated machine room, making them a good choice for low to mid-rise buildings.

What Is The Main Difference Between Machine Room-Less Elevator and Machine Room Elevator? 

Machine room elevators need a machine room for the machinery that operates the elevator. The room is above or next to the hoist-way. It contains the motors, gears, and other mechanical components that power the elevator.

Here are the differences between machine room-less elevators and machine room elevators:

Space Requirements

Machine room-less elevators do not need a separate machine room. They can be installed in buildings with limited space. In contrast, machine room elevators need a separate machine room, which can take up valuable space in a building.

Installation Costs

Machine room-less elevators have lower installation costs than machine room elevators. They do not need the construction of a separate machine room.

Energy Efficiency

Machine room-less elevators tend to be more energy efficient than machine room elevators. The machinery is closer to the hoist-way and does not need long power cables to connect to the elevator.


Machine room-less elevators may need more frequent maintenance than machine room elevators. This maintenance is because the machinery is in the hoist-way. It is more exposed to dust and other environmental factors.


The noise of machine-room-less elevators is louder than that of machine-room elevators.


The comfort of machine-room-less elevators is not as good as that of machine-room elevators.

The choice between a machine room-less elevator and an MR elevator will depend on your needs and constraints. Machine room-less elevators are a good choice for limited space or where installation costs are a concern.

Frequently Asked Questions

Are Machine Room-Less Elevators Safe?

Machine room-less elevators are equipped with many safety features, such as emergency stop buttons, door interlocks, over-speed governors, and so on, It’s designed to prevent accidents and ensure the safety of passengers. 

Are Machine Room-Less Elevators Hydraulic?

Machine room-less elevators can be either hydraulic or traction. Hydraulic elevators use a piston to raise and lower the elevator car. But, traction elevators use a system of ropes and a counterweight to move the car along a guide rail.

Are Machine Room-Less Elevators Suitable For High-Rise Buildings?

Machine room-less elevators are typically more suitable for low to mid-rise buildings. Machine room elevators are a better option for high-rise buildings.

Are Machine Room-Less Elevators More Expensive?

  • The cost of an MRL elevator can vary depending on many factors
  • The size and capacity of the elevator
  • The type of drive system (hydraulic or traction)
  • The number of stops and landings
  • The materials and finishes used in the construction of the elevator.

How Can I Determine If An MRL Elevator Is The Best Option For My Building?

When deciding if a machine room-less elevator is the best choice for your building, consider the size and layout of the building, the top floor height, the expected passenger traffic, and any relevant building codes or regulations. It may also be helpful to consult with an elevator professional or engineer to determine the best fit for your specific needs.

Can Machine Room-essL Elevators Be Used For Freight or Service Elevators?

Yes, machine room-less elevators can be used for various applications, including passenger, freight, and service elevators.

Are There Any Potential Drawbacks to Using An Machine Room-Less Elevator?

Some potential drawbacks to using a machine room-less elevator include a higher upfront cost and potentially less capacity compared to traditional elevators with a dedicated machine room. It is important to carefully consider these factors and consult with a professional to determine the best fit for your building.

Can Machine Room-Less Elevators Be Retrofitted Into Existing Buildings?

Yes, MRL elevators can be installed in existing buildings as part of a renovation project. It is important to consider the size and layout of the building, as well as any relevant building codes or regulations when determining if an MRL elevator is a suitable option for your renovation project.

How to Choose a Sightseeing Elevator?


To summarize, Machine room-less elevators are a cost-effective and efficient choice for modern buildings. They do not need a separate machine room, have a smaller carbon footprint, and offer a smooth and quiet ride.
Dazen Elevator is a reliable supplier of MRL elevators and can assist with installing and maintaining your elevator. 

Are you looking to know more about MRL elevators? How can they benefit your building? Contact the company for more information.

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