1. Differences in building structure: Machine-room elevators have a machine room at the top of the shaft, while machine-room-less elevators do not require a machine room.

2. The installation locations of the machines are different: the motor and control cabinet of the machine room elevator are installed in the machine room, and the motor and control cabinet of the machine roomless elevator are installed in the machine room. The top of the hoistway or the side of the hoistway.

3. Emergency operation locations are different: elevators with machine rooms perform emergency operations in the machine room, while elevators without machine rooms usually operate the motor and control on the top floor. For cabinet maintenance, the machine room-free operator must stand on the top of the car to perform the operation. (The national standard clearly stipulates that elevator safety windows in machine rooms do not need to be added, while those in non-machine rooms must be added. , for the convenience and safety of rescuing, inspecting and repairing the host)

Advantages of machine room-less elevators:

1.Machine room-less elevators are relatively more space-saving and can only have an inspection platform under the main machine.

2.Since there is no need to set up a separate computer room, it has greater benefits in terms of building structure and cost.

Disadvantages of machine room-less elevators:

1.Noise problem: Machine room-less home elevators use steel connections and the noise must be digested in the shaft. Coupled with the sound of the brake, the sound of the fan will be amplified. The noise of the machine room is obviously louder than that of the machine room.

2.Temperature impact: The main heating components such as the main engine of the machine room are in the shaft. Since there are no corresponding cooling and exhaust facilities, the temperature of the machine roomless elevator has a greater impact on the main engine and control cabinet.

・Common shaft layout for machine room-less elevators

1. Host top-mountedtype
The main machine is placed in the space between the top compartment of the shaft and the elevator shaft wall. In order to make the connection between the control cabinet and the main machine short enough, the control cabinet is generally placed next to the hall door on the top floor.

2. Host under-mounted
The main machine is placed in the pit part of the hoistway and placed on the projection space between the pit carriage and the counterweight. The control cabinet is generally wall-mounted.

3. Place the host machine on the car
The host computer is placed on the top of the car, and the control cabinet is placed on the side of the car. In this arrangement, the number of accompanying cables and ropes is relatively large.

4. The host machine and control cabinet are placed in the opening space on the side wall of the shaft
This method has no special requirements for the size of the host and control cabinet, but it requires that the opening part of the building be thick enough and have an access door.