This series of Convey-All CST tenders can be used to fill floaters, fertilizer spreaders, lower air seeder commodity carts and more. When mounted on a standard 36" high truck frame or trailer you'll have 9'10" of clearance under the discharge chute with a 25° operating angle. Clearance increases to 12' at a 30° operating angle. Available with 2, 3 or 4 compartments so you can haul a wide variety of different products on the same trip. And, with conveyor load out there is less risk of cross contamination or product damage. Manufactured in 4 sizes from 608 cu. ft with a capacity of 490 bu. or 18.24 tons to 1216 cu. ft. with a capacity of 975 bushels or 36.48 tons. The 16, 18 and 20' models are manufactured for a 34" rail mount, which is your standard truck frame. The 32' model is available with a 40" rail mount, which is your standard trailer frame, or an 8' deck for hauling on a step deck and selected other trailers.

http://www.conveyall.net/bulk-handling-systems/commercial-seed-tenders/