High speed tubular centrifuge are widely used for clarifying dilute solution in the areas of blood products, biochemistry, pharmaceuticals, beverages, foods, paints and chemical industries etc. Its cut diameter is less than 1um. If used for separating the mixtures of two liquids having different densities, the centrifuges can be operated continously with still greater production capacity. Besides, they can also be used to highly purify or clarify the traditional Chinese medicine injections and the high quality beverages. Their rotors, three-blade inserts, and all parts contacted with the medium being separated are made of stainless steel or silicon rubber. Consequently, the centrifuges could be used for separating ordinary corrosive mediums in addtion to blood products.