The cargo box volume of this grain dump trailer is 35-45 cubic meters (customization according to demand is supported). The inner wall of the cargo box is smooth, which can reduce grain residue. The self-unloading angles are large. The side-tipping angle can reach 45°-50°, and the rear-tipping angle can reach 60°, ensuring thorough unloading of grains. The hydraulic system is equipped with dual-cylinder or triple-cylinder hydraulic jacks, which can achieve stable lifting and are equipped with safety locking devices. In addition, a weighing system with built-in sensors can be optionally installed to achieve real-time monitoring of the load. At the same time, it is equipped with GPS positioning and remote monitoring functions, which are convenient for fleet management and route optimization.