Rotary pump is a rotary positive displacement pump that changes the working volume by the relative motion between the rotor and the pump body, thereby increasing the energy of the fluid.
Rotary pump, also known as Roots pump, colloid pump, high concentration slurry pump, etc., relies on two synchronously moving rotors and is driven by a pair of external synchronous gearboxes. The rotors rotate synchronously in the opposite direction under the drive of the transmission shaft, thus forming a high vacuum degree and discharge pressure. The two rotors divide the rotor chamber into several small spaces and operate in the order of I → II → III → IV. When operating to position I, only the inlet is filled with medium; When operating to position II, a portion of the medium is enclosed in chamber II; When reaching position III, the medium is also enclosed in chamber III; When reaching position IV, the two rotors undergo conjugate displacement, resulting in a reduction in the volume at the outlet. The enclosed area medium is transported to the outlet pipeline. Following this cycle, the medium is continuously transported out.

The rotary pump is driven by a servo motor and equipped with a PLC+HMI control system, which can achieve high-precision and highly automated metering and dosing
Rotary pumps meet hygiene requirements and have a wide range of adaptability to materials (viscosity, solid content)
Can be matched with 2, 3, 4, 5, 6, 8, 10, and 12 blade rotors to achieve high-precision, low pulse metering and dosing
The minimum volume error is ± 0.5ml, and the highest repeatability accuracy for conveying and adding is ± 2 ‰
Highly automated and integrated, able to interface with central control, DCS and other systems to achieve fully digital control
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The servo motor with brake can achieve extremely short and high-frequency start stop, while ensuring high precision of conveying, and is widely used in industries such as filling and quantitative feeding.


It can transport media with high viscosity, high concentration and fine particles, especially suitable for materials that are easy to form foam in the transportation process. The shearing effect of the materials is low. The materials transported by it maintain the original quality, do not have any physical and chemical reaction, and the material transportation is stable and the flow is stable.

Universal versatile rotor, suitable for various high and low viscosity and solid content materials. Its rotor has a long sealing line, stable pressure, and has certain advantages in conveying highly abrasive and large particle materials. It can also effectively transport particularly viscous materials, and the materials conveyed by it maintain their original quality.

Specially designed for large particle materials, its unique structural shape enables it to have unparalleled advantages over other pumps when transporting materials containing large particles. The materials transported by it maintain their original quality, making it the preferred pump for transporting materials containing particles.
food industryMilk, yogurt, cream, ice cream, chocolate, jelly, jam, syrup, beer, soda, juice, pudding, tomato sauce, sesame sauce, peanut butter, seasonings, edible oil, cheese chunks, whey, malt extract, yeast, etc;
daily chemical industry: facial cleanser, shampoo, dishwashing liquid, hand soap, shower gel, laundry detergent, cosmetics, skincare cream, hair dye, toothpaste, soap, shoe polish, glycerin, fatty acids, etc;
chemical industryGasoline, diesel, kerosene, crude oil, sludge, asphalt, paint, pigment, dye, coating, various catalysts, leather, fat, solvent, resin, silicone oil, adhesive, various latex, various colloid materials, various high viscosity materials and slurries with high solid content, etc;
Pharmaceutical IndustryVarious health products, pharmaceuticals, vaccines, biological products, syrups, medicinal slurries, proteins, royal jelly, extracts, emulsions, pill slurries, etc;
Environmental Protection IndustryMud, manure, fertilizer solution, sewage, sludge, various toxic agents, etc;
Construction industryVarious paints, coatings, resins, organic solvents, interior and exterior wall coatings, waterproof coatings, ceramic coatings, paint coatings, ceramic glazes, etc;
Other industriesNanomaterials, papermaking, textiles, plastics, biochemistry, coal and other industries.