Airslide® Gravity Conveying


Developed from Fuller® design and technology, FLSmidth’s Airslide® air gravity conveying system uses the forces of gravity to do most of the work with no moving parts. Material is fluidized through a porous media with low pressure air. Material flow is achieved by sloping the Airslide conveyor to match the fluidized angle of repose of the powdered material. At the correct slope, fluidized materials flow with the consistency of a liquid.

Airslide air gravity systems provide high-capacity material handling while offering many economical and environmental advantages. Energy requirements are minimal because only a small volume of air at a low pressure is required to move material. Since the system is installed overhead, valuable floor space and added headroom are available for other purposes. By eliminating the need for massive support members, it permits a flexibility of plant design not available with straight-line conveyors.

The Airslide conveyor is dust tight. As a result, the system is extremely friendly to the environment.

Noise level is extremely low in the area surrounding the Airslide conveyor as the system’s air supply is the only moving part to generate noise, and it is generally located in a remotely insulated area to further reduce noise.

Maintenance of the Airslide conveyor is very simple because there are no moving parts other than the air supply equipment, which also contributes to increased plant safety. Airslide conveyors require no lubrication.

Typical Airslide conveyor applications

  • Distribution from bucket elevators to storage silos
  • Gathering under baghouses / precipitators
  • Feed to process
  • Feed to other conveyors
  • Loadout from bulk silos to trucks, railcars or barges
  • In-plant conveying
  • Storage silo / bin withdrawal


Go to Airslide Product Details & Specs