A tipping trailer is a towed trailer with a body that raises to discharge loose material. Agricultural versions are commonly used for crops, soil, manure, vegetation and general farm materials. They reduce manual unloading and allow material to be tipped at the destination, provided the load, ground conditions and tractor are suitable. 

The tractor supplies hydraulic oil to one or more rams beneath the trailer body. As the ram extends, it raises the body and allows the load to slide out through the rear or side opening; reversing the hydraulic flow lowers the body. The trailer should be tipped on firm, level ground with the discharge area clear and the tractor and trailer aligned. 

Select the trailer by its gross weight, payload, drawbar load, braking system and hydraulic requirements, not simply its body volume. The tractor must be heavy and powerful enough to tow, control and stop the fully laden trailer on the intended terrain. Also check legal road limits, tyre ratings, access width and whether the tractor can supply the required hydraulic oil. 

Agricultural tipping trailers can carry suitable loose loads such as grain, crops, soil, manure, compost, vegetation and general farm materials. Dense materials reach the trailer’s weight limit before the body is full, while light materials may fill the volume first. The load must be evenly distributed, contained securely and kept within the trailer, tyre and tractor ratings.