... , small occupation, durable Technical Parameters of New Type Castor Oil Press: Model Number1685, 1688, 120, 150Screw Diameter78mm, 95mm, ... time, improving oil yield.3. Adopting new type large scale helical tooth gear box, improving transmission efficiency, reducing ... life, reducing user’s cost and maintain. New Type Castor Oil Press: Centrifugal refining machineRefining machine functionsFiltration ...