The air is divided by the plenums, preventing the air from transferring down the tunnel to a hole or weak area in the product surface. When the air is restricted from passing throughout the tunnel length, less product blowoff is achieved. Large fan plenum doors are adjustable, allowing belt bypass capability. This, too, will assist in achieving optimum dense phase suspension, minimizing blowoff of product fines. The outer walls of the panel are made of white baked enamel over galvanized steel.
Panels are also available in stainless steel, maximum in corrosion resistance and durability.
First, a concrete leveling slab is poured on to the plant floor. Next, two layers of high density Styrofoam insulation are placed, using a criss-cross pattern to prevent seams. The insulation is then covered with another concrete slab, which is sloped to allow drainage. The product guards run the length of the entire tunnel. Manufactured of High Grade stainless steel, which makes them durable, sanitary, and aesthetically pleasing.