The tankers, referred as bulk haulers, are especially interesting for aluminum extrusions because they represent the most weight-sensitive market in trucking. This is the market segment that will pay the highest premium, the most dollars per kilogram ($/kg) of weight saved. They recognize the value of aluminum as these tanks are often fabricated from a 5000 series grade, and they use aluminum extrusions for front and rear frames, as well as sills, outriggers and cross-members.

Aluminum alloy has good compatibility with the many corrosive chemicals and oil products carried in these tanks. From acetone to gasoline, diesel, kerosene to acids and even food products, it's imperative to have a stable, non-corroding structure that is also strong and tough.

Dumper, Grain Trailers

Large trailers for hauling grain, and with the hydraulic capability to dump the load out the back. This manufacturer boasts of the use of U-shaped extruded aluminum crossmembers to spread out the load to minimize high stress locations that would lead to material failures.

From East Manufacturing, the aerodynamic design has unique 2-inch-thick, double-wall extruded aluminum panels, robotically-welded vertically inside and out for superior strength and resistance to bowing.

Source

SOURCE: https://www.eastmfg.com/dump-standard-features.html
https://www.eastmfg.com/genesis.html

Flatbed Trailers

Aluminum extrusions are well-established on the flatbed trailer market as well for the simple reason, to maximize payload. Some trailers are all-aluminum, others vary the use of steel and aluminum in areas best-suited for the payload that they target. Flatbeds carry a wide variety of loads from precast concrete, roofing materials, large rolls of sheet metal, or bundles of rebar, and vehicles.

Trailer floors are a great application for extrusions for these reasons:

  • Extrusions can be produced in straight, long lengths
  • Anti-slip or load-gripping features are easily integrated into the design
  • Provides durable top surface, along with strength & stiffness, all in one member
  • Readily weldable with MIG or friction stir welding (FSW)
  • Corrosion-free for long life
  • Lightweight for higher payloads

Sources:

https://www.eastmfg.com/flatbed-standard-features.html
https://www.fontainepartsource.com/we_sell_the_best.php