Sine pump is a rotary positive displacement pump, which is one of the few true innovations in the field of positive displacement pumps. In addition to possessing the advantages of traditional volumetric pumps, the sine wave pump also has a unique sine wave curve rotor and a simple yet sophisticated structure, which truly achieves smooth and flexible medium delivery without shear, aeration (no bubbles), or pulse. Capable of conveying media of different viscosities, with a maximum conveying viscosity of 4000000 CPS; Even when transporting media and fragile products containing a large amount of solid particles, safe and non-destructive transportation can still be achieved. With features such as high suction range (up to 0.85 bar) and high flow rate (up to 100000 L/H), it has successfully solved the problems that other types of volumetric pumps such as rotary pumps and screw pumps cannot solve, and has a wide range of applications.