CEC builds top truss conveyors on sizes from 48' to 150' in length, and 24" to 48" in width. They are used as product conveyors and field conveyors. The drives are either electric with dodge gearboxes or hydraulic, depending on your application., Lattice framed conveyors come in the same sizes. You can stack eight (8) 30" x 40' top truss conveyors on a single load.