Such a semi-trailer as seen here is used to transport bulk agricultural products. In the Netherlands, mostly potatoes. Transakoo’s 2015 Volvo FH tractor is towing a belt trailer for the AB Texel Group, Western Europe’s market leader in the field of potato hauling.
The combination follows a popular recipe for a Dutch 50 metric tons big rig: a tractor with a steering and liftable pusher axle, coupled to a tridem axle semi-trailer. The Volvo has a 510 DIN-hp, 12.8 liter inline-six. Both displacement and power-wise, another popular recipe in that trucking segment.
Perfect, this short video shows the whole process of transporting potatoes in a self unloading belt trailer. As confirmed at 1:35, the rig hauled 35,720 kg (78,749 lbs) of raw material. Obviously, these are totally unsuited for conveying Easter eggs.