China high quality Stainless Steel Two Stage Vacuum Pump Lobe Rotary Piston Pump Gear Rotary Oil Pump with Moving Wheel Cart with Best Sales

Product Description

21 Years Of Experience. 3-7 days delivery, 3 Years Warranty , Reasonable Price And Best Service, CE Certificated Products. Advanced Technology. Please contact us for the offer.



Product Description



Rotary lobe pumps are positive-displacement type pumps that use 2 or more lobes rotating around parallel shafts in the pump’s body to move liquids. They are widely used in the hygienic processing industries, including food & beverage processing and biopharmaceutical manufacturing.


Working Principle of Rotary Lobe Pump:

The rotary lobe pumps, we also called them lobe rotor pumps. They are 1 popular transfer pump to conveying the food, beverage, pulp and paper, chemical, pharmaceutical and so on. The rotor lobe pump relies on 2 synchronously rotating rotors that generate suction (vacuum) at the inlet during the rotation. Thereby sucking in the material to be conveyed. Both rotors split the rotor chamber into different spaces. Then operate in the order of 1-2-3-4. The medium is delivered to the discharge port. In this cycle, the medium (material) is continuously transported out by the source.

Different Kind of Lobe Options for the Rotor Lobe Pump

1. Single Lobed Rotor: More suitable for conveying media which containing large granular materials. The breaking rate of large granular materials is low. But on other hand it is not popular 1 for used, Because its pulsation is large and pressure is low, also the volume is small for the space of transferred materials.

2. Two-Lobed Rotor (Butterfly Rotor) More suitable for conveying media which containing small and medium-size granular materials. The breaking rate to these materials is low and getting slightly pulsating. The volume is a little less than the three-lobed rotor for the space of transferred materials.

3. Three-Lobed Rotor It is widely used in 1 rotor. The volume is bigger than other type of rotors for the space of transferred materials. Also, each performance is higher than other rotors. Just, it has a certain rate of breakage to the particulate materials on the transport way.

4. Multi-Lobed Rotor(4-12) The volume is smaller for the space of transferred materials and breaking rate higher when the quantity of rotary vane of rotor be increased, Just the transport way more stable.


1,There Is A Certain Gap Between Rotor And Rotor, No Friction Coefficient, So Pump Have A Long Service Life Time.
2, It Is Easy To Install And Disassemble, And It Is Convenient To Maintain, clean . There Is Less Wearing Parts.
3, High Efficiency And Energy Saving, Stable Transportation, Low Failure Rate, No Leak Sealing And Low Noise.
4, The Viscosity Of The Transportable Medium Is, ≤2000000 CP, And The Pump Can Transfer Slurry Containing 70% Solids.
5, It Can Transport Gas, Liquid And CHINAMFG Three-Phase Mixture Materials.
6, With FD, The Flow Can Be Adjusted At Will, And The Pump Can Be Used As A General Metering Pump.
7, If you need, We Can Do The Pump With Heating Jacket.
8, Applicable Temperature: -50 °C, -250 °C.
9, Types Of Inlet/Outlet Connection: Flange Joint, Threaded Connection; Quick Connection.
10,Seal Type: Mechanical Seal And Packing Seal.

Lobe Pump Scope Of Application.

Dairy Products: Yogurt, Cream, Ice Cream, Cheese And Whey.
Beverages: Beer, Wort, Yeast, Soft Drinks, Fruit Concentrates, Fruit Drinks.
Food: Tomato Sauce, Vegetable Paste, Seasoning, Sweeteners, Yeast Paste, Salad, Meat Emulsion, Edible Oil.
Candy: Syrup, Cream Stuffing, Fruit Purée, Fruit Filling, Pudding, Jam, Jelly, Chocolate.
Cosmetics: Creams And Lotions, Hair Gels, Hair Dyes, Essential Oils.
Drugs: Pill, Extract, Emulsion, Paste.
Chemicals: Fats, Solvents, Resins And Polymers, dyes…



Since the pump’s lobes do not come into contact with each other, lobe pumps can move solids suspended in slurries (such as cherries or olives in food processing applications) without product damage. The gentle pump action further minimizes product degradation. Can handle larger sized particles than may be pumped with other types of positive displacement pumps. It may be easily cleaned using either clean-in-place (CIP) or steam-in-place (SIP) methods, making them ideal for hygienic processing applications. Highly efficient for pumping very viscous liquids. Offer accurate and consistent fluid output that is unaffected by changes in head pressure, assuming sufficient fluid viscosity. The fluid flow can be increased or decreased by controlling the drive speed. If wetted, rotary lobe pumps are also self-priming, and can run dry for long periods of time (assuming the pump’s seals are lubricated). Generally easy to maintain.

Product Name:

Sanitary Stainless Steel Rotor Rotary Lobe Pump 


Designed according to 3A standard, widely used for transfer viscous media in the food-processing, cosemtics and pharmaceutical


Horizontal Ace series, diffirent rotor shapes(single rotro,tri-lobe rotors and butterfly type rotors)



Seal Material:

CHINAMFG (Standard, approval)

Max. Flow:





1-1000 rmp

Rotor Type:

2-leaves, 3-leaves, butterfly, signal butterfly

Mechanical seal:


Motor power:

0.75kw, 1.1kw, 1.5kw, 2.2kw, 3kw, …22KW

Sealing option:

Sanitary single mechanical seal/Double mechanical seal with cooling system


220V, 380V(110-480v)


ABB, Siemens,Our Domestic Brand,50hz/ 60hz

Surface treatment:

Inner polished and Sandblast outside


Clamp, Thread, weld, Flange

Availably standard:




Application scope:

Dairy, food, beverage, pharmacy, cosmetic, etc

Packaging Details:

Plywood case

Delivery details:

Usually within1-7 days after receiving T/T down payment

We can customize the Lobe Pump according to customer requirements.

Technical Parameters


Capacity/Per centum rotate (L)











































































Detailed Photos


Packaging & Shipping


Other pumps





Q1. What is your terms of packing?
A: Generally, we pack our goods in plywood case or carton package for small parts.
If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

Q2. What is your terms of payment?
A: T/T in advance, 30% as deposit, and finish 70% balance payment before delivery.
We’ll show you the photos of the products and packages before you pay the balance.

Q3. What is your terms of delivery?

Q4. How about your delivery time?
A: Generally, it will take 3 to 4 weeks after receiving your advance payment. The specific delivery time depends
on the items and the quantity of your order.

Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings.

Q6.Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery

Q7: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
    2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.


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After-sales Service: Video Technical Support, Online Support
Warranty: 2 Years
Mesh Form: External Engaged
Tooth Flank: Stainless Steel Rotary Lobe
Tooth Curve: Stainless Steel Rotary Lobe
Power: Electric
US$ 850/Set
1 Set(Min.Order)




roots vacuum pump

How Are Roots Vacuum Pumps Utilized in the Automotive Industry?

Roots vacuum pumps play a significant role in various applications within the automotive industry. Here’s a detailed explanation:

1. Brake System Vacuum Pumps:

– Vacuum Boosters: Roots vacuum pumps are commonly used as vacuum boosters in automotive brake systems. They assist in enhancing the braking performance by providing the necessary vacuum for power brake operation. When the driver applies the brake pedal, the vacuum booster uses the suction power generated by the Roots pump to amplify the force applied to the brake master cylinder, resulting in more effective braking.

– Electric Brake Vacuum Pumps: In modern electric or hybrid vehicles, where traditional engine-driven vacuum sources may not be available, electric brake vacuum pumps are utilized. These pumps, often based on the Roots principle, generate vacuum independently to power the brake booster and ensure reliable braking performance.

2. Emissions Control:

– Evaporative Emission Control: Roots vacuum pumps are employed in evaporative emission control systems to prevent the release of harmful vapors from the fuel system into the atmosphere. These pumps create a vacuum within the system, purging and storing fuel vapors in a canister for subsequent combustion or recycling.

– Positive Crankcase Ventilation (PCV): PCV systems, which are designed to reduce emissions and maintain the integrity of the engine, also utilize Roots vacuum pumps. These pumps draw crankcase gases and vapors, including oil mist, from the engine’s crankcase into the intake manifold for combustion, improving overall engine efficiency and reducing pollution.

3. Engine Testing and Development:

– Vacuum Leakage Testing: Roots vacuum pumps are utilized for vacuum leakage testing in engine manufacturing and development. By creating a vacuum in the intake manifold or other engine components, these pumps enable the detection of leaks and ensure the integrity of the engine’s air delivery system.

– Air Flow Calibration: During engine testing and calibration, Roots vacuum pumps are used to simulate various operating conditions by controlling the intake air flow. This allows engineers to fine-tune the engine’s performance, optimize fuel-air mixture ratios, and assess the engine’s efficiency and emissions characteristics.

4. HVAC Systems:

– Climate Control: Roots vacuum pumps are employed in automotive HVAC (Heating, Ventilation, and Air Conditioning) systems to facilitate the flow and distribution of air. These pumps help regulate the operation of HVAC components, such as air blend doors and vacuum actuators, ensuring proper air temperature and direction control inside the vehicle cabin.

5. Fuel System and Turbocharging:

– Fuel Transfer and Evacuation: In automotive fuel systems, Roots vacuum pumps are used for fuel transfer and evacuation. These pumps assist in priming the fuel system, removing air pockets, and ensuring the continuous flow of fuel to the engine, enhancing the overall fuel delivery performance.

– Turbocharger Control: Roots vacuum pumps are sometimes employed in turbocharged engines to control the actuation of variable geometry turbochargers (VGT). These pumps provide the necessary vacuum signals to actuate the VGT mechanism, optimizing turbocharger performance and enhancing engine efficiency.

6. Other Applications:

– Electric Vehicle Battery Systems: In electric vehicles, Roots vacuum pumps are utilized to create a vacuum in battery enclosures, helping to maintain the integrity and safety of the battery system by preventing the ingress of moisture, dust, or contaminants.

– Engine Air Induction: Some automotive engines utilize Roots-type superchargers or twin-screw superchargers, which are essentially positive displacement Roots vacuum pumps operating in reverse. These devices compress and force air into the engine’s intake manifold, resulting in increased engine power and performance.

In summary, Roots vacuum pumps find extensive utilization in the automotive industry. They play a crucial role in brake systems, emissions control, engine testing and development, HVAC systems, fuel systems, turbocharging, electric vehicle battery systems, and engine air induction. By contributing to braking performance, emissions reduction, engine calibration, HVAC functionality, fuel system efficiency, turbocharger control, battery system safety, and engine power enhancement, Roots vacuum pumps contribute significantly to the overall operation and performance of automotive systems and components.

roots vacuum pump

What Is a Roots Vacuum Pump, and How Does It Work?

A Roots vacuum pump, also known as a Roots blower or a rotary lobe pump, is a type of positive displacement vacuum pump that is widely used for various industrial applications. Here’s a detailed explanation of what a Roots vacuum pump is and how it works:

A Roots vacuum pump consists of two synchronized rotors, known as lobes or impellers, that rotate in opposite directions within a housing. The lobes have a unique helical shape with multiple lobes, which allows them to trap and move gas efficiently. The rotors are synchronized with the help of timing gears to maintain precise clearances between the lobes and the housing.

The operation of a Roots vacuum pump can be described in the following steps:

1. Inlet Stage: The process begins with the lobes rotating in opposite directions. As the lobes rotate, the volume between them and the housing gradually increases, creating a larger space at the inlet side of the pump. This expansion of the volume causes the gas to enter the pump through the inlet port. The gas is drawn in due to the pressure difference between the inlet and the pump’s internal chamber.

2. Compression Stage: As the gas enters the pump, it gets trapped in the spaces between the lobes and the housing. As the lobes continue to rotate, the trapped gas gets carried along the rotating lobes. The gas is essentially trapped in the pockets formed by the lobes and the housing. The rotating lobes then compress the gas as they move towards the outlet side of the pump.

3. Outlet Stage: As the lobes approach the outlet side of the pump, the volume between them and the housing decreases, resulting in the compression of the trapped gas. This compression raises the pressure of the gas, causing it to be expelled through the outlet port of the pump. The expelled gas is then discharged into the atmosphere or directed to a downstream process or another vacuum pump, depending on the application.

It’s important to note that a Roots vacuum pump operates as a non-contacting pump, meaning that there is no physical contact between the lobes or between the lobes and the housing. This characteristic eliminates the need for lubrication within the pump and reduces the risk of contamination or oil vapor backstreaming into the vacuum system.

Roots vacuum pumps are known for their high pumping speed and ability to handle large volumes of gas. However, they are not capable of achieving high vacuum levels on their own. To achieve higher vacuum levels, a Roots pump is often used in conjunction with other vacuum pumps, such as rotary vane pumps or diffusion pumps, in a hybrid or combination pumping system.

In summary, a Roots vacuum pump operates based on the principle of positive displacement. It utilizes synchronized rotating lobes to trap and compress gas, allowing it to be discharged at a higher pressure. The non-contacting design of the pump eliminates the need for lubrication and reduces the risk of contamination. Roots vacuum pumps are commonly employed in various industrial applications, especially when high pumping speed and large gas handling capacity are required.

China high quality Stainless Steel Two Stage Vacuum Pump Lobe Rotary Piston Pump Gear Rotary Oil Pump with Moving Wheel Cart   with Best Sales China high quality Stainless Steel Two Stage Vacuum Pump Lobe Rotary Piston Pump Gear Rotary Oil Pump with Moving Wheel Cart   with Best Sales
editor by CX 2024-03-23