Based on the traffic influx, the escalators have four main types of configurations, each having different dimensions, that are used for the most common vertical movement systems.
Parallel
These are mostly seen in metro stations and multilevel theaters. Also, they are suitable for buildings with heavy traffic flow in both directions.
Following are its specifications:-
- Speed: 0.5 m/s
- Inclination: 30°, 35°
- Step width: 800/1000
- Power: 50Hz
- Handrails: Rubber/stainless steel
- Step: Stainless steel
- Landing plate: Anti-skid stainless steel
- Operation: Emergency stop button/key switch
- Illumination: Lighting under upper and lower landing steps
- Indicator: Failure indicator on control cabinet
Crisscross
This stacking system going in one direction minimizes structural space requirements. These are mostly seen in departmental stores and shopping centers.
Also, usually preferred in malls and shopping centers, this arrangement offers a clear view of the shopping floor to stimulate the interest of the potential buyers in the products on display.
Following are its specifications:-
- Step width: 600/800/1000
- Power: 50Hz/300 V
- Handrails: Rubber/stainless steel
- Step: Stainless steel
- Landing plate: Anti-skid stainless steel
- Operation: Emergency stop button/key switch
- Illumination: Lighting under upper and lower landing steps
- Indicator: Failure indicator on control cabinet
Multiple parallel
Two or more escalators are arranged together to move in the same or opposite directions. These are used in high-traffic areas.
So, following are its specifications:-
- Speed: 0.5 m/s
- Inclination: 30°, 35°
- Step width: 800/1000
- Power: 50 Hz
- Handrails: Rubber/stainless steel
- Step: Stainless steel
- Landing plate: Anti-skid stainless steel
- Operation: Emergency stop button/key switch/inspection operations
- Illumination: Lighting under upper and lower landing steps
- Indicator: Failure indicator on control cabinet
In addition, it is recommended to have moving handrails as well. This helps the passengers keep pace with the movement of steps.
Although the direction of the movement can be permanently fixed (upward or downward), it is advisable to keep it controlled by professionals based on the time and other requirements.
Multi parallel escalator
Escalator working mechanism
An escalator design uses interlocking steps with the same dimensions powered by an electric motor.
The steps move by a pair of chains that remain looped around another pair of gears. This loop rotates along a larger metal called the truss. Also, the truss keeps the entire mechanism connected to the floors. Moreover, the steps move about like a conveyer belt.