Double-axle agricultural trailers with tandem suspension are steel construction. Unloading is conducted by a hydraulic three-way tipping. The sideboards have bottom and top opening, and can be completely removed, thus turning the trailer into a platform suitable for transporting various palletised materials, straw bales, etc. The braking system can be hydraulic or pneumatic at the two axles, and the activation takes place directly from the brake pedal of the towing machine. Spare wheel, Archimedean screw and roof tarp with mechanical blind are available as additional equipment.