The Tremix TV 830 spreader wagon ensures even distribution of the Tremix Hard topping granolithic concrete material. The TV 830 features robust design and can be handled by one operator. The Hard topping material is distributed in batches, easily regulated from the handle. The TV 830 is provided with a 830 mm wide screen roller instead of wheels. It is therefore not necessary to use any wooden rails on the concrete surface. The roller carries the weight of the machine at the same time as it presses the material upon the concrete surface. The TV 830 is provided with link wheels that are lockable laterally, making it possible to move the machine longitudinally along the casting bays. The receptacle for the Tremix Hard topping material contains 2 bags. The bags can be opened with a knife integrated in the carriage. The TV 830 is provided with dust protection.