Paddle impeller with pore plate blades AAA: Advanced technology, Assurable quality, Authentic reputation (impeller, stirrer, rabbler, beater, propeller, mixing blade, paddle, mixing arm)The two blades of the impeller are unsymmetrically distributed. One is high, the other is low. It makes good shearing effect at low rotation speed in laminar flow region. Usually, it is used for agitating fibre ...