Medium-sized dispensers are used to dispense these additives on the same principles as micro-dispensers, but are larger in design. The feeders are belt or screw type. The refill of the hopper is done manually by the operator from the stacked bags. The raw material is prepared in bags or operational buffer hoppers. The equipment is made of stainless steel or carbon steel with a protective coating and is designed for filling of precise quantity of components into the mixing equipment according to the stored recipe. The control of the dosing system is from the control panel.