Automatic Sliding Doors

Automatic Sliding Doors Overview

An automatic sliding door has one or more leaves that run horizontally on an overhead track, concealed in a header that houses the drive. When a sensor detects someone approaching, the leaves slide apart; once the passage is clear, they close again. It is the most common entrance door in commercial and public buildings.

Sliding doors earn their place at entrances with steady pedestrian flow. People walk through without touching anything, and the door handles wheelchairs, trolleys, luggage and hospital beds without fuss. Because the door closes after every passage, less cooled air escapes and less dust and heat get in, which matters in the Saudi climate.

The right specification depends on more than appearance: number of leaves, glazing type, sensor setup and operating modes all need to suit the entrance. Our article on types of automatic doors compares the main options.

How It Works

A control unit reads signals from the sensors and drives a motor that moves the leaves along the track, usually via a toothed belt.

1. Detection

   A motion sensor above the door picks up a person entering its set detection zone.

2. Opening

   The controller signals the motor, and the leaves slide open at a speed and acceleration tuned to the site.

3. Threshold monitoring

   Safety sensors watch the passage and hold the door open while anyone or anything is in the way.

4. Automatic closing

   Once the area is clear and the hold-open time has passed, the leaves return to the closed position.

Key Benefits

• Smooth pedestrian flow

  Handles busy entrances with two-way traffic and no queuing at the door.

• Better climate control

  Closing after each passage reduces loss of conditioned air and keeps out dust and heat.

• Accessible entry

  Hands-free operation helps wheelchair users, older visitors, parents with prams and staff moving equipment.

• Hygiene

  Touch-free entry cuts contact with door surfaces, a real advantage in healthcare and food settings.

• No swing zone

  Leaves move parallel to the wall, so corridors and lobbies stay clear.

• Clean appearance

  Glazed leaves keep the entrance bright and open and sit well in a modern facade.

Suitable Applications

Sliding doors suit any entrance that sees a high volume of people every day, such as:

• Shopping malls
• Hospitals and clinics
• Office buildings
• Hotel lobbies
• Supermarkets and retail stores
• Airports and transport hubs
• Public service buildings
• Pharmacies and laboratories

Available Configurations

Each sliding door is specified for its project, based on entrance dimensions, traffic levels and facade design. Options commonly considered include:

• Leaf arrangement: single-leaf, bi-parting or multi-leaf telescopic systems.
• Leaf type: framed glass, frameless glass or solid panels.
• Glazing: toughened, laminated or insulated glass to suit safety and energy needs.
• Finishes: frame and header colours to match the building.
• Sensors: motion detectors plus threshold safety sensors.
• Operating modes: automatic, hold open, exit only and night lock.
• Integration: connection to access control or alarm systems where needed.

Factors Affecting Selection

• Traffic volume: who passes through and how often sets the clear opening width and speed settings.
• Side space: the leaves need clear wall space beside the opening to slide into.
• Energy performance: sun-exposed entrances may need insulated glazing or a double-door lobby.
• Security: determines glass type and night-locking arrangements.
• User profile: hospitals and care homes need slower opening and wider detection.
• Escape routes: confirm with the authority or consultant whether the entrance is part of an emergency exit route and what that requires.
• System integration: links to access control or fire alarm systems.

Installation Considerations

Sliding doors need a level floor and a true, straight header so the leaves glide freely and close tightly. We carry out automatic door installation in coordination with the facade contractor. Before we arrive, see our checklist on preparing the door opening before installation.

• Opening readiness: final dimensions and a finished, level floor.
• Supporting structure: a header able to carry the drive unit and leaf weight.
• Power supply: a dedicated point at header level.
• Clearances: unobstructed side space for the leaves to open fully.
• Contractor coordination: timing with glazing, flooring and finishing works.
• Handover and training: sensor tuning, mode testing and a briefing for facility staff.

Maintenance

Sliding doors run for long hours every day, so regular preventive maintenance keeps sensors accurate and movement smooth. Our automatic door maintenance visits typically include:

• Testing motion and safety sensors and adjusting detection zones.
• Inspecting and cleaning rollers and the overhead track.
• Checking the belt, controller and motor.
• Verifying leaf alignment and floor guides.
• Testing locks and operating modes.
• Checking the emergency battery, where fitted.

To specify the right door for your entrance, request a quote.