Our millstones are only made with natural materials such as emery and flint, while a type of magnesite is used for the binding. They are solid and feature excellent wear resistance, which means they have a long service life. The 250 Mill is formed of a heavy-duty frame made from fully welded and boxed steel sheets, which make it very sturdy. The loading hopper has a capacity of about 20 kg, while the grains are fed in through an adjustable system. The degree of fineness of the flour produced can be adjusted with a handwheel that moves the millstones closer or farther away from each other. The top millstone is fixed, while the bottom one tilts and rotates thanks to a V-belt drive transmission operated by a 1.8 kW electric motor, available as a 400 V three-phase or 230 V single-phase motor. The rotating millstone is equipped with two brushes to make it easier to clean and to empty the milling chamber.