China wholesaler Paper Industrial / Open Impeller / Slurry / Vacuum /Water Ring / Double Flow Pulp Pump for Paper Mills with high quality

Product Description

Product Parameters


SK Centrifugal Pump

SK type high-efficiency non-clogging non-leakage pulp pump is a new generation of pulp pump products. It has obvious advantages such as high efficiency, good anti-clogging performance, no leakage during operation, and convenient installation and maintenance. It is widely used in the transportation of pulp media in paper and pulp enterprises.

Structural features:
    1. The pump has a rear-opening structure, so there is no need to disassemble the pipeline during maintenance.
    2. The inlet and outlet flanges of the pump are designed according to 1.6MPa pressure.
    3. The impeller adopts three-blade or six-blade open impeller, which has high efficiency and does not require axial thrust compensation, is easy to maintain, and has low blockage rate.
    4. The pump shaft is supported by a combination of imported CHINAMFG cylindrical roller bearings and radial thrust ball bearings (angular contact ball bearings). Cylindrical roller bearings are installed at the pump end, and radial thrust ball bearings are installed face-to-face at the rotating end.
    5. Shaft seals mainly include pumping ring plus single end mechanical seal, packing seal, single end mechanical seal, tandem mechanical seal, double end mechanical seal, combined seal of pumping ring and single end mechanical seal, and dynamic seal. .
    6. The impeller adopts lost wax precision casting and performs dynamic balance verification
    7. There are 4 kinds of materials: cast iron, cast steel, ordinary stainless steel and duplex stainless steel.

Low Pulse Pulp Pump

SJ type sizing pump, also known as low pulse pump. It is an ideal replacement product designed according to the actual situation of the paper industry in view of the large flow and low-head mixed-flow pumps widely used in general papermaking mills. The pulp is unstable and inconvenient to disassemble and assemble.

The pump has the advantages of high efficiency, stable pulp, long service life and convenient maintenance. The bearing is balanced in force at both ends of the pump body, and the pump casing is opened in the middle and can be repaired after opening the cover.

It is suitable for the matching of medium and high-speed paper machine pulp supply system, the use temperature is below 80 ºC, and the concentration is below 1% for pulp transportation.

Note: The pump looks from the coupling to the pump. The pump rotates counterclockwise. The inlet of the pump is on the right and the outlet is on the left. If you need to change the position of the inlet and outlet, it must be mentioned when ordering.

Vacuum Pulp Pump

Water ring vacuum pumps are suitable for pumping air and other non-corrosive, water-insoluble, and CHINAMFG particles-free gases in order to obtain a higher vacuum in a closed container. It has the characteristics of high vacuum degree, high pumping speed in high vacuum area, compact structure, stable work and convenient maintenance.

Water ring vacuum pumps are suitable for working conditions where the suction pressure is lower than -0.08MPa. The working vacuum range is -0.03—0.08MPa.

1. Compared with SK series single-stage water ring vacuum pump, it has the characteristics of high vacuum degree and high pumping speed in high vacuum area. At the same pumping rate, the shaft power is higher than 2BV and 2BE series water ring vacuum pumps.
2. Compact structure and convenient maintenance.
3. It can extract gas containing water vapor, flammable, explosive, a small amount of dust, and a small amount of liquid
4. It can work in a harsh environment.

Water Ring Vacuum Pump

Water-ring vacuum pump is a highly effective energy-saving product developed on the basis of the years’ scientific research results and production experience,by means of the energy-saving and consumption-reducing principle and combining the advanced know-how with the same products both at home and abroad.

This pump can be used either as a vacuum pump or an air compressor for the technological processes of vacuum filtering, vacuum water leading, vacuum feeding, vacuum vaporizing, vacuum concentrating, vacuum reversing, vacuum degassing, etc. And for pumping the gases which are not solved in water and contain no CHINAMFG grains in the petroleum, chemical, mechanic, medicine,food,dyeing,environmental protection.electronic etc., industrial sections. Besides, because the air compression inside of it iTs .isothermal, so the pump can also be used to pump combustible and explosive gases.

Double Flow Centrifugal Pump

S and SH pumps are single-stage double-suction, horizontal split centrifugal pumps, which are used to transport clean water and liquids with physical and chemical properties similar to water.

The maximum temperature of the liquid should not exceed 80°C, which is suitable for water supply and drainage of paper mills, mines, cities, and power stations, farmland drainage and irrigation, and various water conservancy projects.

The bearings of this type of pump are at both ends of the pump body, and the force is balanced during operation, so it has a long service life. The pump body is a center-open type, which can be repaired after opening the cover, which is very convenient.

     Note: The S-type pump looks from the coupling to the pump. The pump rotates clockwise. The water inlet of the pump is on the right and the water outlet is on the left. If you need to change the location of the import and export, it must be mentioned when ordering.

     Note: The SH type pump looks from the coupling to the pump. The water pump rotates counterclockwise. The water inlet of the pump is on the left and the water outlet is on the right. If you need to change the location of the import and export, you must mention it when ordering.

Middle Consistency Slurry Pump

This non-clogging pump is a new and energy-saving pulp pump. After actual use, it has the characteristics of high efficiency, no or less leakage, good anti-clogging performance, stable operation, high reliability, and compact structure.

Mainly reflected in the following aspects:

1. It adopts semi-open or full-open impeller, the clearance between the wear plate and the front side of the impeller is adjustable, and the shaft seal mainly adopts mechanical seal and selects high-precision bearings (D-level accuracy) and high-quality shaft materials.

2. Can be widely used in light industry and papermaking industries where the temperature is lower than 110C and the concentration is lower than 6%. It can also be used in industrial and urban water supply, drainage and other occasions.


Submersible slurry pump


The submersible slurry pump is a single-stage, single-suction, centrifugal, and vertical slurry pump. It is our company’s leading product. It is mainly suitable for the treatment of corrosive CHINAMFG particles in electric power, metallurgy, coal, building materials, chemical industries and other industries.

A new generation of high-efficiency and energy-saving single-stage, single-suction, centrifugal slurry pump for slurry. They are mainly suitable for processing concentrates and tailings in ore dressing plants, removing ash and slag from thermal power plants, conveying coal slime and heavy-medium coal preparation in coal preparation plants, and conveying CHINAMFG in coastal river sand mining operations. The maximum weight concentration of the slurry that can be processed is: 45% CHINAMFG and 60% ore slurry.

It is a single-stage, single-suction, vertical centrifugal slurry pump. This series of pumps adopts the internationally advanced solid-liquid two-phase flow theory and is designed according to the principle of minimum loss. The geometry of the flow-passing parts conforms to the flow state of the medium, reducing local and along-the-way hydraulic losses such as vortex and impact, thereby reducing the wear of the flow-passing parts, improving hydraulic efficiency, and reducing operating noise and vibration; this series of pumps The flow parts are made of high-hard alloy cast iron, and its material has high abrasion resistance, corrosion resistance, and impact resistance, thereby increasing its life.


We can supply all types of pumps for paper mills. Please contact us to get the inquiry.


Company Profile

ZheJiang CHINAMFG International Group established in 2002.We are a China Based engineering company and machinery supplier committed to offer complate solution and provide high-cost-performance equipments related to stock preparation and paper-making industry.Our head office is located in HangZhou, ZheJiang province. We have 15000 square CHINAMFG Factory Building. For years,we have insisted on taking customer’s value as our center and having strict quality-control and innovation in the whole process. With advantage technology and excellent equipment,we provide one-stop service from consultation,process design and optimization,manufacture,installation,commissing and personnel training and so on.At the same time,we can supply all kinds of stock preparation and paper making equipment and accessories.Besides,we can custom design according to customers’ requirements.

Our products have reliable quality and superior performance and have been exported to Poland,Greece,Turkey,Iran,India,Packistan,Bangladesh,Thailand,Indonesia,Philippines,Malaysia,Vietnam,Mexico,Guatemala,Costa

Rica,Columbia,Egypt etc.We have established long-term cooperation relationship with many paper mills and agent.

Honesty,cooperation and CHINAMFG are important to us.We insisted on serve our customers with high quality products,sincere service and

good reputation.We are appreciated for the long-term trust and favor from our customers.Hope we can cooperate sincerely and make

progress together with our new and old customer.



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After-sales Service: Provide Accessories, Video Instruction
Warranty: 3 Month
Certification: ISO 9001:2008, CE
Surface Treatment: Spray-Paint
Material: SS304/SS316/SS316L/Duplex Steel
Theory: Centrifugal Pump


vacuum pump

How Are Vacuum Pumps Employed in the Production of Electronic Components?

Vacuum pumps play a crucial role in the production of electronic components. Here’s a detailed explanation:

The production of electronic components often requires controlled environments with low or no atmospheric pressure. Vacuum pumps are employed in various stages of the production process to create and maintain these vacuum conditions. Here are some key ways in which vacuum pumps are used in the production of electronic components:

1. Deposition Processes: Vacuum pumps are extensively used in deposition processes, such as physical vapor deposition (PVD) and chemical vapor deposition (CVD), which are commonly employed for thin film deposition on electronic components. These processes involve the deposition of materials onto substrates in a vacuum chamber. Vacuum pumps help create and maintain the necessary vacuum conditions required for precise and controlled deposition of the thin films.

2. Etching and Cleaning: Etching and cleaning processes are essential in the fabrication of electronic components. Vacuum pumps are used to create a vacuum environment in etching and cleaning chambers, where reactive gases or plasmas are employed to remove unwanted materials or residues from the surfaces of the components. The vacuum pumps help evacuate the chamber and ensure the efficient removal of byproducts and waste gases.

3. Drying and Bake-out: Vacuum pumps are utilized in the drying and bake-out processes of electronic components. After wet processes, such as cleaning or wet etching, components need to be dried thoroughly. Vacuum pumps help create a vacuum environment that facilitates the removal of moisture or solvents from the components, ensuring their dryness before subsequent processing steps. Additionally, vacuum bake-out is employed to remove moisture or other contaminants trapped within the components’ materials or structures, enhancing their reliability and performance.

4. Encapsulation and Packaging: Vacuum pumps are involved in the encapsulation and packaging stages of electronic component production. These processes often require the use of vacuum-sealed packaging to protect the components from environmental factors such as moisture, dust, or oxidation. Vacuum pumps assist in evacuating the packaging materials, creating a vacuum-sealed environment that helps maintain the integrity and longevity of the electronic components.

5. Testing and Quality Control: Vacuum pumps are utilized in testing and quality control processes for electronic components. Some types of testing, such as hermeticity testing, require the creation of a vacuum environment for evaluating the sealing integrity of electronic packages. Vacuum pumps help evacuate the testing chambers, ensuring accurate and reliable test results.

6. Soldering and Brazing: Vacuum pumps play a role in soldering and brazing processes for joining electronic components and assemblies. Vacuum soldering is a technique used to achieve high-quality solder joints by removing air and reducing the risk of voids, flux residuals, or oxidation. Vacuum pumps assist in evacuating the soldering chambers, creating the required vacuum conditions for precise and reliable soldering or brazing.

7. Surface Treatment: Vacuum pumps are employed in surface treatment processes for electronic components. These processes include plasma cleaning, surface activation, or surface modification techniques. Vacuum pumps help create the necessary vacuum environment where plasma or reactive gases are used to treat the component surfaces, improving adhesion, promoting bonding, or altering surface properties.

It’s important to note that different types of vacuum pumps may be used in electronic component production, depending on the specific process requirements. Commonly used vacuum pump technologies include rotary vane pumps, turbo pumps, cryogenic pumps, and dry pumps.

In summary, vacuum pumps are essential in the production of electronic components, facilitating deposition processes, etching and cleaning operations, drying and bake-out stages, encapsulation and packaging, testing and quality control, soldering and brazing, as well as surface treatment. They enable the creation and maintenance of controlled vacuum environments, ensuring precise and reliable manufacturing processes for electronic components.

vacuum pump

How Do Vacuum Pumps Assist in Freeze-Drying Processes?

Freeze-drying, also known as lyophilization, is a dehydration technique used in various industries, including pharmaceutical manufacturing. Vacuum pumps play a crucial role in facilitating freeze-drying processes. Here’s a detailed explanation:

During freeze-drying, vacuum pumps assist in the removal of water or solvents from pharmaceutical products while preserving their structure and integrity. The freeze-drying process involves three main stages: freezing, primary drying (sublimation), and secondary drying (desorption).

1. Freezing: In the first stage, the pharmaceutical product is frozen to a solid state. Freezing is typically achieved by lowering the temperature of the product below its freezing point. The frozen product is then placed in a vacuum chamber.

2. Primary Drying (Sublimation): Once the product is frozen, the vacuum pump creates a low-pressure environment within the chamber. By reducing the pressure, the boiling point of water or solvents present in the frozen product is lowered, allowing them to transition directly from the solid phase to the vapor phase through a process called sublimation. Sublimation bypasses the liquid phase, preventing potential damage to the product’s structure.

The vacuum pump maintains a low-pressure environment by continuously removing the water vapor or solvent vapor generated during sublimation. The vapor is drawn out of the chamber, leaving behind the freeze-dried product. This process preserves the product’s original form, texture, and biological activity.

3. Secondary Drying (Desorption): After the majority of the water or solvents have been removed through sublimation, the freeze-dried product may still contain residual moisture or solvents. In the secondary drying stage, the vacuum pump continues to apply vacuum to the chamber, but at a higher temperature. The purpose of this stage is to remove the remaining moisture or solvents through evaporation.

The vacuum pump maintains the low-pressure environment, allowing the residual moisture or solvents to evaporate at a lower temperature than under atmospheric pressure. This prevents potential thermal degradation of the product. Secondary drying further enhances the stability and shelf life of the freeze-dried pharmaceutical product.

By creating and maintaining a low-pressure environment, vacuum pumps enable efficient and controlled sublimation and desorption during the freeze-drying process. They facilitate the removal of water or solvents while minimizing the potential damage to the product’s structure and preserving its quality. Vacuum pumps also contribute to the overall speed and efficiency of the freeze-drying process by continuously removing the vapor generated during sublimation and evaporation. The precise control provided by vacuum pumps ensures the production of stable and high-quality freeze-dried pharmaceutical products.

vacuum pump

How Are Vacuum Pumps Different from Air Compressors?

Vacuum pumps and air compressors are both mechanical devices used to manipulate air and gas, but they serve opposite purposes. Here’s a detailed explanation of their differences:

1. Function:

– Vacuum Pumps: Vacuum pumps are designed to remove or reduce the pressure within a closed system, creating a vacuum or low-pressure environment. They extract air or gas from a chamber, creating suction or negative pressure.

– Air Compressors: Air compressors, on the other hand, are used to increase the pressure of air or gas. They take in ambient air or gas and compress it, resulting in higher pressure and a compacted volume of air or gas.

2. Pressure Range:

– Vacuum Pumps: Vacuum pumps are capable of generating pressures below atmospheric pressure or absolute zero pressure. The pressure range typically extends into the negative range, expressed in units such as torr or pascal.

– Air Compressors: Air compressors, on the contrary, operate in the positive pressure range. They increase the pressure above atmospheric pressure, typically measured in units like pounds per square inch (psi) or bar.

3. Applications:

– Vacuum Pumps: Vacuum pumps have various applications where the creation of a vacuum or low-pressure environment is required. They are used in processes such as vacuum distillation, vacuum drying, vacuum packaging, and vacuum filtration. They are also essential in scientific research, semiconductor manufacturing, medical suction devices, and many other industries.

– Air Compressors: Air compressors find applications where compressed air or gas at high pressure is needed. They are used in pneumatic tools, manufacturing processes, air conditioning systems, power generation, and inflating tires. Compressed air is versatile and can be employed in numerous industrial and commercial applications.

4. Design and Mechanism:

– Vacuum Pumps: Vacuum pumps are designed to create a vacuum by removing air or gas from a closed system. They may use mechanisms such as positive displacement, entrapment, or momentum transfer to achieve the desired vacuum level. Examples of vacuum pump types include rotary vane pumps, diaphragm pumps, and diffusion pumps.

– Air Compressors: Air compressors are engineered to compress air or gas, increasing its pressure and decreasing its volume. They use mechanisms like reciprocating pistons, rotary screws, or centrifugal force to compress the air or gas. Common types of air compressors include reciprocating compressors, rotary screw compressors, and centrifugal compressors.

5. Direction of Air/Gas Flow:

– Vacuum Pumps: Vacuum pumps draw air or gas into the pump and then expel it from the system, creating a vacuum within the chamber or system being evacuated.

– Air Compressors: Air compressors take in ambient air or gas and compress it, increasing its pressure and storing it in a tank or delivering it directly to the desired application.

While vacuum pumps and air compressors have different functions and operate under distinct pressure ranges, they are both vital in various industries and applications. Vacuum pumps create and maintain a vacuum or low-pressure environment, while air compressors compress air or gas to higher pressures for different uses and processes.

China wholesaler Paper Industrial / Open Impeller / Slurry / Vacuum /Water Ring / Double Flow Pulp Pump for Paper Mills   with high quality China wholesaler Paper Industrial / Open Impeller / Slurry / Vacuum /Water Ring / Double Flow Pulp Pump for Paper Mills   with high quality
editor by CX 2024-03-24

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