Sliding Doors

A sliding door is a type of door which opens horizontally by sliding, usually parallel to a wall. Sliding doors can be mounted either on top of a track below or be suspended from a track above and some types ‘disappear’ in a wall when slid open, Sliding doors are commonly used as shower doors, glass doors, screen doors, wardrobe doors or in vans.

Sliding Door Gear

The mechanism used to operate a sliding door is called sliding door gear. There are two standard types, top hung or bottom rolling systems. Both types do not have a perfect seal. To reduce air- and smoke-tightness and sound insulation, brush seals are commonly used.

Top Hung Sliding Doors

• The ‘top hung’ system is most often used. The door is hung by two trolley hangers at the top of the door running in a concealed track; all the weight is taken by the hangers, making the door easier to move.
• At each end is a track stopper to absorb any impact made if the door is slammed and to hold the door in the open or closed position. All top hung sliding door gear systems have a maximum weight limit per pair of trolley hangers.

Bottom rolling Door gear

• Sometimes a top hung system cannot be used, as the weight of the door cannot be supported from above, in this case a bottom rolling system is recommended.
• A bottom rolling system consists of two rollers (sometimes called a sheave) at the bottom of the door running on a track and two guides at the top running in a guide channel. As all the weight of the door is concentrated on the two bottom wheels, more force is needed to move the door than on a top hung system

Lift and Slide Door Gear

A sliding door that is lifted from the frame during opening and closing is called a lift-and-slide door. This allows for a better seal, with less draught and better sound proving.

Automatic Sliding Doors

Some sliding doors contain a motor and activation system to open them. These are called sliding door operators. Automatic sliding doors are commonly found in offices and shop entrances. These doors contain a magnetic locking mechanism that automatically unlocks during emergencies.

Usages:

Advantages of sliding doors are that there is almost no room required to open the door, they are relatively easy to automate. The mechanism is also secure, since it cannot be lifted out of its hinges. Sliding doors are commonly found as store-, hotel and office entrances, elevators, patios doors, closet doors and room dividers. Transport industries also use sliding doors in vans, trains and metro.

Appications:

• Commercial Building
• Industrial Building
• Residential Building
• Metro
• Hospital
• Elevators

Features

• Normally the door is in open condition. It gets activated via fusible link at the time of fire breakout & the door closes automatically by counterweights.
• All steel components of the doors are designed and fixed to provide complete sealing.
• Available with easy see through vision window