What is the speed of the machine for grinding wheat flour? The ground flour is white and tough.

20 revolutions per minute. Stone mill is flour processed at low temperature and low speed by traditional stone mill without any additives. The speed is 20 revolutions per minute. The flour ground by automatic stone mill is pure natural flour, which is very good and tough. Flour is a kind of powder ground from wheat. According to the content of protein in flour, it can be divided into high gluten flour, medium gluten flour, low gluten flour and gluten-free flour.