Step 1: Compressed air enters the load module chamber and fills the flexible torus bag and center chamber. At this point the Air Caster (Air Bearing) will inflate and seal off against the floor.
Step 2: As the pressure is increased, a state of equilibrium is achieved where the force up equals the force down. Note the downward force is the load or equipment to be moved, and the upward force is the internal air pressure times the effective torus bag area.
Step 3: Next the compressed air will take the path of least resistance which is underneath the torus bag. This film of air created is 3 to 5 thousandths thick and flows uniformly between the torus bag and the seal floor surface around the entire circumference.