China Hot selling Negative Pressure Roots Vacuum Pump for Pulp Dehydration Drying with high quality

Product Description

negative pressure roots vacuum pump for pulp dehydration drying

Product Description

Roots blower is a positive displacement blower with impeller end face and front and rear end cover of the blower. The principle is a rotary compressor that uses 2 blade-shaped rotors to move relative to each other in the cylinder to compress and deliver gas. This kind of blower is simple in structure and convenient to manufacture. It is widely used in CHINAMFG aeration, sewage treatment and aeration, cement conveying, and is more suitable for gas conveying and pressurizing systems in low pressure occasions, and can also be used as a vacuum pump.

Vietnam cement 1.5kw pump Tri-Lobe roots blower for Vacuum packaging

Product Parameters

Model Pressure Flow Rate Motor
RHSR50 9.8kpa-58.8kpa 0.67m3/min-2.48m3/min 0.55kw-4kw
63. 7kpa-98kpa 0. 45m3/m in-2. 02m3/min 2.2kw-7.5kw
RHSR65 9.8kpa-58.8kpa 0.95m3/min-3.64m3/min 0.55kw-5.5kw
63.7kpa-98kpa 0. 78m3/m in-2.96m3/min 3kw-11kw
RHSR80 9.8kpa-58.8kpa 2.36m3/min-6.13m3/min 1.5kw-11kw
63.7kpa-98kpa 1.82m3/min-5.24m3/min 5.5kw-15kw
RHSR100 9.8kpa-58.8kpa 3.28m3/min-9.62m3/min 1.5kw-15kw
63.7kpa-98kpa 2.65m3/min-8.67m3/min 7 .5kw-18.5kw
RHSR125 9.8kpa-58.8kpa 5.37m3/min-13.39m3/min 2.2kw-22kw
63. 7kpa-98kpa 4.64m3/min-12.25m3/min 11kw-30kw
RHSR150 9.8kpa-58.8kpa 10 .39m3/min-29. 61 m3/min 5.5kw-55kw
63.7kpa-98kpa 9.53m3/min-28.35m3/min 8.5kw-75kw
RHSR175 9.8kpa-58.8kpa 19.65m3/min-40.67m3/min 11kw-75kw
RHSR200 9.8kpa-58.8kpa 27.65m3/min-58.81 m3/min 15kw-90kw
63. 7kpa-98kpa 25 .34m3/m in-56. 92m3/min 551<w-1321<w
RHSR250 9.8kpa-58.8kpa 61.4m3/min-97.1 m3/min 18.5kw-132kw
63.7kpa-98kpa 58.1 m3/min-93.7m3/min 90kw-220kw
RHSR300 9.8kpa-58 8kpa 87 .1 m3/min-136. 7m3/min 22kw-185kw
63.7kpa-98kpa 83.8m3/min-134.4m3/min 132kw-280kw
RHSR350 9.8kpa-58 8kpa 111.9m3/min-198.1 m3/min 30kw-250kw
63. 7kpa-98kpa 102.2m3/min-179.65m3/min 185kw-400kw

Packaging & Shipping

Roots Blower Packing and Delivery

Wooden case and iron case packaged
Send by ship / plane / train

  Vietnam cement 1.5kw pump Tri-Lobe roots blower for Vacuum packaging


Roots Blower Application
2.Sewage treatment/ Effluent Treatment & Sludge Management
3.Conventional anaerobic & aerobic systems
4.Chemical industry
6.CHINAMFG Waste Management Bio gas plants
7.Engineered landfills
8.Printing and paper feeding
9.Electrical transportation
10.Pneumatic conveying
11.Pneumatic transport
12.Air Pollution Control, Noise Abatement & Ventilation Wet scrubbers
13.Vacuum packaging
14.Part demolding

China Sewage Treatment Industrial Air Roots Blower for Vacuum CHINAMFG Aeration

Roots Blower Features

1.The helical construction uses the stator helical method that the screen lines of casing at the suction and discharge sides are cut to a helical shape,and the triangle suction and discharge port formed by a straight line of the rotor top is to be opened and closed gradually.
2.The rotors are 3 lobes.
3.By adoption of an unique profile of rotor, the clearance between the rotors can be held to be constant, which makes the efficiency even higher.
4.The precision of rotors is fully controlled and variation of precision between blowers is almost nil because the rotors are produced under the mass production control by utilizing a prenision NC maching.
5.The advanced driving gears are adopted but only to extend  the use life but also to make noise lower.
6.The transported air is clean and is any oil-dust free oil lubrication is not needed in casing and the structure design prerent the bearing oil and gear oil from entering the casing.

How Does a Roots Blower Work?

Roots blowers are typically oil-free, air-cooled technologies comprised of 2 rotors that spin in opposite directions. Once the compression chamber comes into contact with the outlet port, compressed air flows back into the housing from the pressure side. Further compression takes place as the volume of the compression chamber further decreases with continued rotation. This means that the compression occurs against full counter-pressure, which results in low efficiency and a high noise level.

The low-efficiency of these blowers limits them to applications requiring very low pressure and single-stage compression. These are also frequently used as vacuum pumps and for pneumatic conveyance.

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3 lobe air blowers fish pond roots blower for mining/biogas/aquaculture/sewage treatment/landfill/cement

Company Profile

HangZhou City RuiHeng Building Materials Co., Ltd is specialized in the research, development, production and sales of geosynthetic materials, plastic products and plastic machinery. Our company is devoted to geosynthetic material research and development and application.

Our main products are hdpe geomembrane liner, plastic geogrid, geotextile, 3D geomat, geocell, geomembrane welding machine, extrusion welder and welding rod, etc. Our products have been widely used by clients in more than 20 countries and regions. Our products are applied in aquaculture, railways, highways, water conservancy, electric power, metallurgy, ports and municipal engineering construction. We have won the praises of customers.

Vietnam cement 1.5kw pump Tri-Lobe roots blower for Vacuum packaging


1.Do you have an extended warranty?
Yes, every product is 1 year quality warranty under customer correct using the products.12 months warranty and long-term marketing, after-sales support.

2.If you have a designated forwarder ?
Please contact us and provide destination port details. We have own forwarder. Working term is very fexible in our company.

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

4.Do you accept OEM order?
Yes,we can produce as client’s request. OEM and ODM order are accepted, any kind of logo printing or design are available.

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Material: Casting Iron
Usage: for Air Conditioner, for Manufacture, for Refrigerate, Aquaculture, Sewage Treatment, Industry
Pressure: High Pressure


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Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


Initial Payment

Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

roots vacuum pump

What Is the Significance of Roots Vacuum Pumps in the Aerospace Sector?

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

1. Space Simulation Chambers:

– Vacuum Simulation: Roots vacuum pumps are utilized in space simulation chambers to create and maintain vacuum conditions similar to the space environment. These chambers are used to test and simulate the performance of aerospace components and systems under low-pressure conditions, including the effects of vacuum on materials, electronics, and mechanical systems.

– Thermal Vacuum Testing: Roots pumps are crucial in thermal vacuum testing, where aerospace components and systems are subjected to extreme temperature and vacuum conditions. The pumps help evacuate the test chamber and maintain the required vacuum level, enabling accurate thermal testing and evaluation of aerospace equipment’s performance and functionality in space-like conditions.

2. Propellant Handling and Storage:

– Rocket Engine Testing: Roots vacuum pumps are employed in rocket engine testing facilities for propellant handling and storage. They assist in creating a vacuum environment during the propellant loading and purging processes, ensuring the removal of air or contaminants from the propellant tanks and lines. This helps maintain the propellant’s quality and prevents potential issues, such as cavitation or gas bubble formation, that could affect engine performance.

– Fuel Systems: Roots pumps are used in aerospace fuel systems to evacuate and degas the fuel tanks, ensuring the removal of air or gas bubbles that may compromise fuel delivery and engine operation. These pumps contribute to the overall efficiency, reliability, and safety of fuel systems in aerospace vehicles.

3. Environmental Control Systems (ECS):

– Cabin Pressure Control: Roots vacuum pumps are utilized in the environmental control systems of aircraft and spacecraft to help control cabin pressure. By creating a vacuum or adjusting the air circulation, these pumps assist in maintaining the desired cabin pressure levels, ensuring passenger comfort, and providing a safe and controlled environment during flight.

4. Avionics and Electronics:

– Electronic Component Testing: Roots vacuum pumps are employed in the testing and validation of avionics and electronic components used in aerospace applications. These pumps assist in creating a controlled vacuum environment during testing, allowing engineers to evaluate the performance, reliability, and durability of electronic systems under low-pressure conditions.

– Vacuum Encapsulation: In certain aerospace applications, electronic components or circuits may require vacuum encapsulation for protection against harsh environmental conditions, including high altitude, temperature variations, or moisture. Roots vacuum pumps are utilized to create the necessary vacuum environment for the encapsulation process, ensuring the integrity and longevity of sensitive electronics.

5. Space Propulsion Systems:

– Ion Thrusters and Electric Propulsion: Roots vacuum pumps are integral components of ion thrusters and electric propulsion systems used in spacecraft. These pumps aid in the creation and maintenance of the high vacuum conditions required for the operation of these advanced propulsion technologies. They contribute to the efficient exhaust gas removal, ensuring optimal thrust generation and fuel efficiency.

6. Satellite Manufacturing and Testing:

– Satellite Chamber Evacuation: Roots vacuum pumps are utilized in satellite manufacturing and testing facilities for the evacuation of satellite chambers. These pumps help create the required vacuum conditions during satellite assembly, testing, and payload integration, ensuring the cleanliness, functionality, and performance of satellite systems and instruments.

In summary, Roots vacuum pumps have significant significance in the aerospace sector. They are utilized in space simulation chambers, propellant handling and storage, environmental control systems, avionics and electronics testing, space propulsion systems, and satellite manufacturing and testing. By creating and maintaining vacuum conditions, Roots pumps contribute to the performance, reliability, and safety of aerospace components, systems, and vehicles. They play a vital role in supporting space exploration, satellite communication, and the advancement of aerospace technologies.

roots vacuum pump

What Are the Primary Applications of Roots Vacuum Pumps?

Roots vacuum pumps, also known as Roots blowers or rotary lobe pumps, are utilized in a variety of industrial applications where efficient and reliable vacuum generation is required. Here’s a detailed explanation of the primary applications of Roots vacuum pumps:

1. Chemical Processing: Roots vacuum pumps find extensive use in the chemical processing industry. They are employed for processes such as vacuum distillation, solvent recovery, drying, and degassing. Their high pumping speed and ability to handle corrosive gases make them suitable for handling various chemical vapors and byproducts.

2. Pharmaceuticals: In the pharmaceutical industry, Roots vacuum pumps are utilized for applications such as vacuum drying, tablet coating, freeze drying, and vacuum packaging. Their oil-free operation ensures a clean and contaminant-free vacuum environment, which is crucial for pharmaceutical manufacturing processes.

3. Food Processing: Roots vacuum pumps play a significant role in the food processing industry. They are employed for vacuum packaging, vacuum cooling, and vacuum drying of food products. The oil-free operation of Roots vacuum pumps ensures food safety and eliminates the risk of contamination.

4. Environmental Technology: Roots vacuum pumps are utilized in environmental technology applications, including wastewater treatment, biogas processing, and air pollution control. They are employed to extract gases, control emissions, and facilitate the treatment and purification of air and water.

5. Semiconductor Manufacturing: In the semiconductor industry, Roots vacuum pumps are used for processes such as ion implantation, physical vapor deposition (PVD), chemical vapor deposition (CVD), and etching. Their high pumping speed and oil-free operation are crucial for maintaining clean vacuum conditions required in semiconductor fabrication.

6. Packaging and Printing: Roots vacuum pumps are employed in packaging and printing applications. They are used for vacuum packaging of products, vacuum forming of packaging materials, and in printing presses for paper handling and ink transfer.

7. Automotive Industry: Roots vacuum pumps find application in the automotive industry for processes such as brake system vacuum assist, crankcase ventilation, and emissions control systems. They help create vacuum conditions required for the operation of various automotive systems.

8. Research and Laboratory: Roots vacuum pumps are utilized in research laboratories and scientific facilities for a wide range of applications. They are used in vacuum ovens, freeze dryers, vacuum filtration, electron microscopy, surface analysis, and other laboratory processes that require controlled vacuum environments.

9. Energy Industry: In the energy sector, Roots vacuum pumps are used for applications such as steam turbine condenser air extraction, transformer drying, and vacuum impregnation of electrical components. They help maintain proper vacuum conditions for efficient and reliable operation of energy systems.

These are some of the primary applications where Roots vacuum pumps are commonly used. Their high pumping speed, large gas handling capacity, oil-free operation, reliability, and versatility make them suitable for a wide range of industrial processes that require efficient and reliable vacuum generation.

China Hot selling Negative Pressure Roots Vacuum Pump for Pulp Dehydration Drying   with high quality China Hot selling Negative Pressure Roots Vacuum Pump for Pulp Dehydration Drying   with high quality
editor by CX 2024-03-29