... food and beverages, chemicals, ph The rotator pump calls colloid pump , trefoil pump , sole pump etc., which are widely used in food ... cam and rotor transfer pump1.compare with centrifugal pump (pump milk) : centrifugal pump because of its simple structure, low cost and ... speed of cam and rotor pump revolution is low, generally between 200rpm to 600rpm. Output materials has been steadily delivered and ...