Unloading Belts. Adams load out conveyors are available in 18", 24", 30 or 36" widths and 10 to 60 ft lengths, frame rails are made from 12 ga 304 stainless steel material, PVC troughing tri rollers on 4 ft centers, 5 " diameter vulcanized rubber coated head and tail... "With Adams Equipment, I feel that we get the dependability and ...