Dump semi-trailers use a hydraulic system to drive the cargo box for autonomous unloading, primarily employing side-tipping and rear-tipping operation methods. The cargo box utilizes manganese plate welding technology and is equipped with a non-independent steel plate stamping rigid suspension system, enabling the unloading of bulk materials such as sand, gravel, and coal within 30 seconds to 2 minutes, with a lower residue rate than traditional models.
According to new policies implemented in 2025, four-axle vehicles are limited to a weight of 36 tons, and six-axle vehicles to 49 tons, promoting the design of lightweight models and the development of rear-tipping models with tarpaulin functionality. Mainstream brands in the market include CIMC Huajun, Minxing Automobile, and Xinjinjun, offering models of varying lengths from 9.5 meters to 13 meters to suit short-distance transportation and infrastructure construction scenarios.
