02 April 2024

Three Roll Mill | www.sefluid.com

Three Roll Mill The three roll mill is a specialized equipment used for particle crushing, dispersion, and mixing. SeFluid is professional China manufacturer for it. https://www.sefluid.com/products/china-three-roll-mill-manufacturer/?feed_id=463&_unique_id=660c09c98d44e

Three Roll Mill | www.sefluid.com

Three Roll Mill The three roll mill is a specialized equipment used for particle crushing, dispersion, and mixing. SeFluid is professional China manufacturer for it. https://www.sefluid.com/products/china-three-roll-mill-manufacturer/?feed_id=462&_unique_id=660c090e590ea

06 January 2024

Reaction Tank | www.sefluid.com

Reaction Tank Home Introduction of Reaction Tank ... https://www.sefluid.com/news-post/industrial-stainless-steel-reaction-tank/?feed_id=437&_unique_id=659943bf2427c

Ultrasonic Homogenizer | www.sefluid.com

An ultrasonic homogenizer, also known as an ultrasonic disruptor or sonicator, is a scientific instrument used for sample preparation in various fields, including biology, chemistry, materials science, and food technology. It utilizes high-frequency sound waves to disrupt and homogenize samples, resulting in the dispersion of particles, cell disruption, emulsification, and mixing of components.

SeFluid’s ultrasonic homogenizer series comprises a range of instruments designed to provide efficient and consistent sample processing. The series encompasses different models, each tailored to meet specific requirements of various applications. From small-scale laboratory experiments to large-scale industrial processes, SeFluid offers a comprehensive solution to meet diverse needs.

How Ultrasonic Homogenizer Works

The ultrasonic homogenizer works based on the principle of acoustic cavitation. It utilizes high-frequency sound waves to create alternating compression and rarefaction cycles in a liquid medium containing the sample. Here’s a step-by-step explanation of how an ultrasonic homogenizer operates:

  • Transducer: The ultrasonic homogenizer consists of a transducer, which is typically made of piezoelectric materials such as ceramics or crystals. The transducer is responsible for converting electrical energy into high-frequency mechanical vibrations.
  • Generator: The ultrasonic homogenizer is connected to a generator that supplies electrical energy to the transducer. The generator produces high-frequency electrical signals, typically in the range of 20 kHz to a few megahertz, depending on the specific application.

  • Probe or Horn: The transducer is attached to a probe or horn, which is immersed in the liquid medium containing the sample. The probe serves as a medium to transmit the mechanical vibrations generated by the transducer to the sample.
  • Acoustic Cavitation: When the generator is turned on, the transducer starts vibrating at the desired frequency, generating ultrasonic waves. These waves propagate through the liquid medium and create alternating cycles of compression and rarefaction.
  • Bubble Formation: During the rarefaction phase of the sound wave, microscopic bubbles form in the liquid. These bubbles are typically formed at locations with imperfections or dissolved gas in the liquid.
  • Bubble Growth: As the rarefaction cycle continues, the bubbles grow in size due to the decrease in pressure. The growth of these bubbles is assisted by the continuous supply of gas from the liquid or the diffusion of gas trapped within the liquid.
  • Bubble Collapse: When the compression phase of the sound wave arrives, the pressure increases rapidly, causing the bubbles to collapse violently. This collapse is known as acoustic cavitation.
  • Energy Release: The rapid collapse of the bubbles releases a tremendous amount of energy in the form of shockwaves, microjets, and localized heating. The collapse of the bubbles near solid surfaces can generate even higher energy levels.
  • Disruption and Homogenization: The energy released during acoustic cavitation creates mechanical forces that disrupt cells, break down particles, and promote mixing within the sample. The intense shear forces, microstreaming, and local temperature increases contribute to the homogenization process.
  • Control and Optimization: The ultrasonic homogenizer allows the user to control various parameters such as power, amplitude, and sonication time. These parameters can be adjusted based on the specific sample characteristics and desired outcomes, enabling optimization of the homogenization process.

By utilizing the phenomenon of acoustic cavitation, the ultrasonic homogenizer efficiently disrupts and homogenizes samples, leading to cell disruption, particle dispersion, emulsification, and mixing. The precise control over sonication parameters allows researchers to tailor the process according to their specific needs, resulting in effective sample preparation in various scientific and industrial applications.

Material of Ultrasonic Homogenizer

The material of the ultrasonic horn or probe can vary depending on the specific application and the manufacturer. Common materials used for ultrasonic homogenizer probes include:

  • Titanium: Titanium is a popular choice due to its high strength, corrosion resistance, and ability to transmit ultrasonic energy efficiently. Titanium probes are suitable for a wide range of applications and are often used in biological and chemical laboratories.

  • Stainless Steel: Stainless steel is another common material for ultrasonic homogenizer probes. It is durable, resistant to corrosion, and has good mechanical properties. Stainless steel probes are often used for general laboratory applications.

  • Aluminum: Aluminum is lightweight and has good thermal conductivity. Aluminum probes are suitable for applications where weight is a concern, and they are commonly used in smaller-scale laboratory setups.

  • Zirconium: Zirconium is chosen for its corrosion resistance and high-temperature stability. Zirconium probes may be used in applications where aggressive chemicals are present.

  • Plastics: In some cases, plastic materials such as PEEK (polyether ether ketone) or Teflon may be used for probes, especially in applications where chemical compatibility and non-reactivity are critical.

It's essential to choose the appropriate material based on the specific requirements of your application, taking into consideration factors such as the type of samples being processed, the chemicals involved, and the desired performance characteristics. Additionally, the design and construction of the entire ultrasonic homogenizer system, including the generator and other components, can also vary among manufacturers. Always refer to the manufacturer's guidelines and recommendations for the specific equipment you are using.

Processing Capacity of Ultrasonic Homogenizer

The processing capacity of an ultrasonic homogenizer, often expressed as throughput or processing speed, can vary widely depending on factors such as the instrument's design, power output, and the type of samples being processed. The processing capacity is typically measured in terms of the volume of the sample that can be effectively treated within a given time frame.

Some factors that influence the processing capacity of an ultrasonic homogenizer include:

  • Power Output: The ultrasonic homogenizer's power, measured in watts or kilowatts, plays a crucial role in determining its processing capacity. Higher power levels generally allow for faster and more efficient sample processing.

  • Frequency: Ultrasonic homogenizers operate at specific frequencies, typically in the ultrasonic range (20 kHz to several MHz). The frequency can impact the efficiency of sample disruption and the types of samples that can be effectively processed.

  • Probe Design: The design and geometry of the ultrasonic horn or probe can influence the homogenization efficiency. Different probe designs may be suitable for specific types of samples or volumes.

  • Sample Characteristics: The nature of the samples being processed, such as their viscosity, composition, and susceptibility to ultrasonic energy, can affect processing speed. Some samples may require more time or a different approach for effective homogenization.

  • Batch or Continuous Processing: The processing capacity may also be influenced by whether the ultrasonic homogenizer operates in batch mode or continuous flow. Continuous processing systems may offer higher throughput for certain applications.

  • Manufacturer Specifications: Manufacturers provide specifications for their ultrasonic homogenizers, including recommended operating conditions and maximum processing capacities. It's important to consult the manufacturer's documentation for accurate information about a particular device.

It's crucial to note that the processing capacity may vary for different models and brands of ultrasonic homogenizers. Additionally, the optimal conditions for achieving maximum throughput while maintaining sample integrity should be determined based on the specific requirements of your application.

Processing Mode of Ultrasonic Homogenizer: Batch and Continuous

Ultrasonic homogenizers can operate in either batch mode or continuous mode, and the choice between these modes depends on the specific requirements of the application. Both modes have their advantages and are suitable for different types of processing.

  • Batch Mode:

    • Description: In batch mode, the ultrasonic homogenizer processes a fixed volume of sample at a time. The sample is placed in a container (such as a tube, beaker, or vial), and the ultrasonic probe is immersed in the sample to disrupt and homogenize it.
    • Advantages:
      • Simple and straightforward setup.
      • Well-suited for small to medium-scale laboratory applications.
      • Allows for control over the entire batch of samples.
  • Continuous Mode:

    • Description: In continuous mode, the ultrasonic homogenizer processes an ongoing flow of sample. The sample is continuously pumped or flowed through a chamber where the ultrasonic probe disrupts and homogenizes it before it exits the system.
    • Advantages:
      • Higher throughput and processing speed, making it suitable for larger-scale operations.
      • Can be integrated into automated or semi-automated processes.
      • Well-suited for applications where a continuous supply of homogenized material is required.

The choice between batch and continuous mode depends on several factors:

  • Sample Volume: Batch mode is often used for smaller sample volumes, while continuous mode is more efficient for processing larger volumes.

  • Automation and Integration: Continuous mode is more amenable to automation and integration into larger processing systems, making it suitable for industrial applications.

  • Processing Speed: Continuous mode generally offers higher processing speeds, making it advantageous for applications where rapid and continuous homogenization is required.

  • Sample Characteristics: The nature of the sample and the desired level of homogenization can influence the choice of mode. Some samples may be better suited for one mode over the other.

It's important to refer to the manufacturer's guidelines and specifications for the specific ultrasonic homogenizer model you are using, as they will provide information on the recommended mode of operation, limitations, and best practices for achieving optimal results. Additionally, considering the specific requirements of your application will help determine whether batch or continuous mode is more suitable for your needs.

Advantages of Ultrasonic Homogenizer

Ultrasonic homogenizers offer several significant benefits in sample preparation and processing. Here are some key advantages of using ultrasonic homogenizers:

  • Efficient and Rapid Processing: Ultrasonic homogenizers provide rapid and efficient sample processing compared to traditional methods. The intense cavitation and mixing action generated by high-frequency sound waves ensure thorough homogenization, reducing the time required for sample preparation. This efficiency is particularly beneficial when working with large sample volumes or when a high throughput is needed.
  • Versatility: Ultrasonic homogenizers are versatile tools that can accommodate a wide range of sample volumes and viscosities. They can be used for small laboratory-scale samples as well as large-scale industrial batches. The ability to control sonication parameters, such as power, amplitude, and processing time, allows researchers to optimize the homogenization process for different sample types and applications.
  • Non-destructive Sample Processing: Ultrasonic homogenization is a non-destructive sample preparation technique. Unlike some other methods that may generate excessive heat or shear forces, ultrasonic homogenizers preserve the integrity and functionality of sensitive molecules, such as proteins, enzymes, and nucleic acids. This non-destructive nature is particularly important in applications where maintaining the native properties of the sample is crucial.
  • Homogenization of Various Samples: Ultrasonic homogenizers can effectively homogenize a wide range of samples, including cells, tissues, emulsions, suspensions, and solid materials. They are commonly used for cell disruption, DNA and RNA extraction, protein extraction, particle size reduction, and dispersion of nanoparticles. This versatility makes ultrasonic homogenizers suitable for various scientific disciplines, such as life sciences, pharmaceuticals, nanotechnology, and materials science.
  • Scalability: Ultrasonic homogenizers can be easily scaled up for industrial production. The same principles and techniques used in laboratory-scale experiments can be applied to larger batches, allowing for seamless transition from research to commercial applications. This scalability makes ultrasonic homogenizers valuable tools for process development and optimization in industries such as pharmaceuticals, food and beverage, and cosmetics.
  • User-Friendly Operation: Ultrasonic homogenizers are designed for ease of use and user convenience. They often feature intuitive control panels, user-friendly interfaces, and programmable settings. Some models also include automated safety features and real-time monitoring capabilities. These user-friendly features enable researchers and operators to perform experiments with precision and confidence.
  • Reduced Contamination: Ultrasonic homogenizers minimize the risk of contamination since they do not require additional chemicals or consumables for sample processing. The sample is processed directly in the liquid medium, eliminating the need for harsh solvents or abrasive materials that can introduce contaminants. This benefit is particularly important in applications where sample purity and integrity are critical, such as in the pharmaceutical and biotechnology industries.
  • Cost-Effectiveness: Ultrasonic homogenizers offer a cost-effective solution for sample preparation. They eliminate the need for multiple processing steps, additional equipment, and consumables, reducing overall costs. Additionally, the long-term durability and reliability of ultrasonic homogenizers contribute to their cost-effectiveness.

Applications of Ultrasonic Homogenizer

Ultrasonic homogenizers find applications in various scientific fields and industries due to their ability to efficiently disrupt and homogenize samples. Here are some common applications of ultrasonic homogenizers:

  • Cell Disruption and Lysis: Ultrasonic homogenizers are widely used in cell biology and biotechnology for cell disruption and lysis. The intense cavitation generated by the high-frequency sound waves can break open cell membranes, releasing cellular contents such as proteins, DNA, RNA, and organelles. This application is valuable for extracting intracellular components, studying cellular processes, and preparing samples for downstream analyses.
  • DNA and RNA Extraction: Ultrasonic homogenizers are employed in molecular biology and genetics for DNA and RNA extraction from various biological samples. The mechanical forces generated during sonication aid in the disruption of cells and the release of nucleic acids, facilitating their subsequent purification and analysis.
  • Particle Size Reduction: Ultrasonic homogenizers are used to reduce the size of particles, including nanoparticles, microspheres, and emulsion droplets. The intense shear forces and cavitation effects disrupt agglomerates and promote uniform dispersion. This application is crucial in nanotechnology, pharmaceuticals, and materials science for achieving desired particle size distributions and enhancing the effectiveness of drug delivery systems.
  • Emulsification and Dispersion: Ultrasonic homogenizers facilitate the production of stable emulsions by promoting the breakup of immiscible liquids into fine droplets. They are commonly used in the food and beverage industry for emulsifying oils, creating stable suspensions, and improving product texture and stability.
    Sample Homogenization: Ultrasonic homogenizers are employed to homogenize samples by achieving uniform mixing of components. This application is valuable in chemistry, materials science, and quality control to ensure consistent sample composition and properties.
  • Sample Preparation for Analytical Techniques: Ultrasonic homogenizers are used to prepare samples for various analytical techniques, including spectroscopy, chromatography, and mass spectrometry. They aid in solubilizing samples, enhancing extraction efficiency, and improving sample uniformity, leading to more accurate and reproducible results.
  • Disintegration and Extraction: Ultrasonic homogenizers are utilized in the extraction of bioactive compounds from plant materials, such as herbs and botanicals. The mechanical forces generated during sonication help break down cell walls and release desired compounds, such as flavors, fragrances, and therapeutic compounds.
  • Formulation Development: Ultrasonic homogenizers play a crucial role in formulation development in industries such as pharmaceuticals, cosmetics, and personal care. They assist in blending and dispersing ingredients, improving product stability, and achieving desired texture and appearance.
  • Sample Degassing and Cleaning: Ultrasonic homogenizers can be used for degassing liquids by removing dissolved gases, such as oxygen or carbon dioxide. They are also employed in the cleaning of laboratory glassware and equipment, utilizing the cavitation effects to dislodge contaminants and facilitate cleaning.

These applications highlight the versatility of ultrasonic homogenizers in various scientific disciplines, including biology, chemistry, materials science, pharmaceuticals, food technology, and cosmetics. The efficient sample processing and homogenization capabilities of ultrasonic homogenizers contribute to advancements in research, development, and quality control in these fields.

The Reason to Choose SeFluid's Ultrasonic Homogenizers

Are you in search of cutting-edge technology that will revolutionize your homogenization process? Look no further than SeFluid's Ultrasonic Homogenizers, the ultimate solution for achieving unmatched results.

At SeFluid, we understand the significance of precision and efficiency when it comes to homogenization. That's why our Ultrasonic Homogenizers are designed with state-of-the-art features to meet all your requirements.

Here's why SeFluid's Ultrasonic Homogenizers stand out from the competition:

  • Unparalleled Performance: Our homogenizers utilize advanced ultrasonic technology, providing precise and consistent results. With adjustable power settings, you have full control to achieve the desired sample disruption, emulsification, and dispersion.
  • Innovative Design: Experience the future of sample preparation with our state-of-the-art design. SeFluid's Ultrasonic Homogenizers are engineered with cutting-edge technology and feature advanced probe designs for maximum efficiency. The sleek and user-friendly interface allows for seamless operation, making it a valuable asset for both seasoned professionals and newcomers alike.
  • Versatility at its Best: SeFluid's Ultrasonic Homogenizers are adaptable to a wide range of applications. Whether you're in the pharmaceutical, food and beverage, cosmetic, or research industry, our homogenizers deliver exceptional performance across various sample types.
  • Time and Cost Efficiency: Say goodbye to lengthy and expensive homogenization processes. Our Ultrasonic Homogenizers offer rapid processing times, enabling you to streamline your production and reduce operational costs without compromising on quality.
  • User-Friendly Interface: We believe that technology should be accessible to all users. That's why our homogenizers feature an intuitive interface, making it easy for operators of all levels to operate and optimize the homogenization process.
  • Durability and Reliability: SeFluid takes pride in delivering robust and reliable equipment. Our Ultrasonic Homogenizers are built to endure rigorous usage, ensuring long-lasting performance and minimal downtime.
  • Exceptional Customer Support: We stand by our products and our customers. Our dedicated support team is ready to assist you with any inquiries, troubleshooting, or guidance you may need along the way.

Don't settle for ordinary homogenization methods when you can experience the extraordinary with SeFluid's Ultrasonic Homogenizers. Take your homogenization process to new heights and witness remarkable results.

Contact us today to learn more about SeFluid's Ultrasonic Homogenizers and how they can transform your homogenization process. Experience the future of homogenization with SeFluid!

ultrasonic homogenizer | SeFluid



500-3500 w

Resonant Frequency

20±1 KMz

Max. Work Pressure

5 Mpa


Titanium alloy

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Horizontal Bead Mill | www.sefluid.com

Introduction of Bead Mill

The bead mill, also referred to as the sand mill, is a kind of milling equipment used for particle size reduction and dispersion of solid particles in a liquid medium. The working of a bead mill is based on intense agitation and grinding between the solid particles and the grinding media (beads) within a cylindrical chamber. The chamber is typically filled with grinding beads made of materials such as zirconia, ceramic, or metal. There is an agitator in the chamber, usually in the form of a rotating shaft with discs or pins attached. Its high-speed rotation generates a strong turbulent flow within the chamber, causing the grinding beads and the material to collide and interact.

As the material is fed into the mill from one end, it is subjected to the high shear forces generated by the agitator and grinding beads. This intense agitation breaks down the particles, reducing their size and promoting dispersion. The grinding beads effectively grind and disperse the material, ensuring a uniform particle size distribution in the final product.

Compared with similar products from other competitors, SeFluid's bead mill series are cost-effective and easy to maintain with an economic price that customers can afford but can achieve nano-level grinding fineness. In many fields such as coatings, rubber, pesticides, cosmetics, etc., SeFluid's bead mills are widely used and widely welcomed by users.

bead mill | pearl mill | sand mill | SeFluid



11-55 kw

Cylinder volume

10-100 L


700-1200 rpm


nano level

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Principle of Bead Mill


There are a group of cylindrical agitating rod pins installed on the hollow rotor shaft. These pins work with the horizontal ceramic shell to form a high-density energy grinding chamber. There are different materials for the pins according to different material properties. When running, the hollow stirring shaft drives the rod pins to do high-speed operation. Then, the rod pin drives the medium to carry out fierce collision and grinding. Therefore, the medium experiences strong impact force and high shear force. After that, good milling and dispersing effect will be achieved. 

Key Parts of SESM Bead Mill Series

Cooling System

Jacketed water circulation chamber wall cooling; Discharging end cover cooling; Mechanical seal pressurized tank cooling & heat exchange cooling. 

Control System

Standard electronic control system: host electric control cabinet with on-site control box, easy for spot operation. Top brand electric components.

Mechanical Seal

Dedicated double end mechanical seal, easy to remove and install. No need of professional people for replacement. Independent cooling system.

Bead Mill Gauge

Electric pressure meter and electric temperature meter (with temperature protection & pressure protection, auto-stop function).

Milling Bead

Pure zirconia beads (more than 95% zirconium content) for bead mill.

Feeding Pump

Pneumatic diaphragm pump, all aluminum alloy housing, Teflon membranes.

Milling Cylinder Material

Inside: Hard alloy or ceramic
Outer materials: SS304/SS316 or else, mirror polished.

Product Discharging

ACC centrifugal turbine, static large area radial direction sieve; High output, no beads damaged or blocked.

Advantage of SESM Bead Mill Series

Silicon Carbide Inner Milling Cylinder

Bead Mill Silicon Carbide Inner Milling Cylinder_SeFluid

In SeFluid's series of bead mill, we take silicon carbide ceramic as grinding cylinder material. It is sintered over many days at high temperatures. As the hardness of silicon carbide is second only to diamond, it is highly wear resistant and long lasting. Meanwhile, it has high strength, high hardness, excellent wear and corrosion resistance and good temperature resistance (-50℃ to 1350℃). In addition, the smooth surface of silicon carbide ceramic can prevent dust accumulation. So, it is ideal material for milling parts.

Long Life Milling Assembly

bead mill milling assembly material 3_SeFluid

Rotor assembly is one of the key parts of an agitator bead mill. It is also the final kinetic energy conversion device. Due to the high speed of rotation, the rotor assembly must be highly resistant to fatigue, corrosion and abrasion. Therefore, it is made of special materials and subjected to many rigorous tests, depending on the customer's material requirements. This ensures that our bead mill series achieves consistent and efficient grinding performance. For all SeFluid's bead mill products, we have various wear resistant materials for user's options ranging from ceramic to hard alloy.

Cartridge Mechanical Seal Adopted

Modular design is adopted in the use of cartridge mechanical seals, where the seal module is directly installed on the bead mill shaft during installation. During maintenance, only the seal module needs to be disassembled, without the need to dismantle other components such as bearings. This greatly simplifies the installation process and reduces maintenance costs.

When a bead mill is in operation, a large amount of grinding fluid is generated. If the seal is not tight, it can lead to leakage of the grinding fluid, which can affect the normal operation of the equipment and even cause safety accidents. Moreover, the grinding fluid can enter the bearings, resulting in damage to the bearings. Cartridge mechanical seals have excellent sealing performance, effectively preventing leakage of the grinding fluid, protecting the normal operation of the bearings, prolonging the service life of the equipment, and reducing operational costs.

High Efficiency Cooling Systems

bead mill cooling system_SeFluid

Good cooling is necessary to ensure the long-term stable running of a bead mill. If the large amounts of heat are not removed in time, the mechanical seal and milling parts are apt to be damaged. Meanwhile, the milled material can also change its physical or chemical properties due to the high temperature. In SeFluid's bead mill series, we have specially designed two efficient cooling systems. Firstly there is an oil circulation cooling system for the mechanical seals. Secondly, there is a jacket cooling system for the grinding cylinder. Moreover, the system allows users to keep track of the temperature rise.

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26 December 2023

Rotary Lobe Pump | www.sefluid.com

Introduction of Rotary Lobe Pump

The Rotary Lobe Pump is a positive displacement pump widely utilized for various liquid transfer applications, including viscous, shear-sensitive, and abrasive fluids. Operating on the principle of rotating lobes, it creates a vacuum that draws in fluid and expels it through the discharge port. Comprised of two or more non-contacting lobes housed within a metal or rubber casing, this design minimizes wear and tear, reducing maintenance needs. Lobes can be customized with different profiles like bi-wing, tri-wing, or four-wing to optimize flow rate and pressure for specific uses.

Renowned for their efficiency, reliability, and accuracy in metering and dosing tasks, Rotary Lobe Pumps can accommodate solids up to a certain size and maintain consistent flow even with changing viscosities or pressures. Commonly found in industries such as food and beverage, pharmaceuticals, chemicals, and wastewater treatment. SeFluid's rotary lobe pump series has technical advantages such as sanitary, new structure, high flow rate and good precision.

Rotary Lobe Pump | SeFluid



0.55-22 kw


300-43000 m³/h


200-500 rpm


SS304, SS316

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How Rotary Lobe Pump Works

Principle of rotary lobe pump work - 4 | SeFluid
Stage A
Principle of rotary lobe pump work - 2 | SeFluid
Stage B
Principle of rotary lobe pump work - 3 | SeFluid
Stage C
Principle of rotary lobe pump work - 4 | SeFluid
Stage D

A rotary lobe pump works on the principle of positive displacement, meaning it traps a specific volume of fluid and moves it from the suction side to the discharge side with each rotation of the lobes. Here's a step-by-step explanation of how a rotary lobe pump works:

Fluid enters the pump

The process begins when fluid enters the pump through the suction inlet. The lobes rotate, creating a vacuum in the space between the lobes and the casing.

Fluid trapping

As the lobes continue to rotate, the fluid is trapped in the spaces between the lobes and the casing. The shape of the lobes and the close tolerances between the lobes and the casing prevent the fluid from flowing back to the suction side.

Fluid transport

As the lobes rotate further, the trapped fluid is carried around the casing. The fluid is effectively transported from the suction side to the discharge side of the pump.

Discharge of fluid

As the lobes complete their rotation, the trapped fluid reaches the discharge outlet. At this point, the fluid is forced out of the pump and into the discharge piping or system.

Repeat the process

The rotation of the lobes continues, and the cycle repeats. With each rotation, a fixed volume of fluid is transferred from the suction side to the discharge side.

It's important to note that rotary lobe pumps generally have two or more lobes that rotate in opposite directions. This design helps maintain a balanced flow and reduces pulsation. The lobes are typically synchronized using gears or timing belts to ensure proper alignment and efficient pumping.

The pump's performance can be adjusted by varying the speed of the rotation, the clearance between the lobes and the casing, and the size and shape of the lobes. These factors influence the pump's capacity, pressure capabilities, and efficiency.

Benefits of Screw Decanter Centrifuge

Advantages of SeFluid's Rotary Lobe Pump

Rotary lobe pumps offer several benefits that make them popular in various industries. Here are some key features of using rotary lobe pumps:

Viscous Fluid Handling

Rotary lobe pumps excel at handling high-viscosity fluids, such as thick pastes, sludges, creams, and gels. Their positive displacement design allows them to effectively move viscous materials without causing damage or excessive shear. This makes them suitable for industries like food processing, cosmetics, and pharmaceuticals where maintaining product integrity is crucial.

Gentle and Non-Pulsating Flow

Rotary lobe pumps provide a smooth and non-pulsating flow. The design of the lobes and the close tolerances between the lobes and the casing minimize turbulence and shear forces. This is particularly beneficial for shear-sensitive fluids, delicate products, and processes that require a consistent flow rate.

Solids Handling Capability

Rotary lobe pumps can handle fluids containing solids, slurries, or abrasive materials. The pump's robust construction and clearances between the lobes and the casing allow for the passage of small particles without clogging or damaging the pump. This makes them suitable for applications in wastewater treatment, mining, and chemical industries.

Reversible Operation

Rotary lobe pumps can operate in both directions, allowing for bidirectional flow. This feature is advantageous when the pump needs to be used for both pumping and cleaning processes. It simplifies tasks such as product recovery, cleaning-in-place (CIP), and sterilization-in-place (SIP) procedures.

Efficiency and Reliability

Rotary lobe pumps are known for their high efficiency and reliability. They have a simple design with fewer moving parts compared to other pump types, reducing the risk of mechanical failure. Their positive displacement action ensures consistent flow rates and self-priming capabilities, making them dependable for various applications.

Easy Maintenance and Cleanability

Rotary lobe pumps are designed for easy maintenance and cleanability. The pump's simple construction allows for quick disassembly and reassembly, facilitating routine maintenance, inspection, and cleaning. This is particularly important in industries with stringent hygiene requirements, such as food and beverage processing.


Rotary lobe pumps are versatile and can be used across a wide range of industries and applications. They can handle different fluid viscosities, temperatures, and pressures. Additionally, the pump's design can be customized to suit specific requirements, such as different materials of construction, seal options, and connection types.


One of the paramount advantages of SeFluid's rotary lobe pumps is their inherent self-priming capability. This characteristic enables them to function efficiently without relying on a separate priming mechanism, thereby saving valuable time and expenses in numerous applications.

Types of Rotary Lobe Pump

Type A of Rotary Lobe Pump | SeFluid

Single lobe type

Especially for mediums with large particles, rotary lobe pumps can effectively prevent particle damage during the conveying process.

Type B of Rotary Lobe Pump | SeFluid

Double lobe type

Ideal for viscous fluid and medium containing small size particles, low breakage rate and slight ripple to pumped particles.

Type C of Rotary Lobe Pump | SeFluid

Three lobe type

Popular type with a certain of breakage to pumped particles. It is the most widely used rotary lobe pump type in various industries.

Type D of Rotary Lobe Pump | SeFluid

Multi lobe type

When lobe quantity is over 3, volume per rotation will be reduced, meanwhile stability will increase, and breakage will be higher.

Features of SeFluid's Rotary Lobe Pump

SeFluid's rotary lobe pump boasts several notable features that set it apart. Here are some key features of SeFluid's rotary lobe pump:

Superior Efficiency

SeFluid's rotary lobe pump is designed for optimal efficiency, ensuring maximum fluid transfer with minimal energy consumption. This feature helps reduce operational costs and enhances overall system performance.

Gentle Product Handling

The pump's carefully engineered design and precise clearances between the lobes and casing enable gentle product handling. It minimizes shear forces, ensuring the integrity of shear-sensitive fluids, delicate materials, and particles within the medium.

Robust Construction

SeFluid's rotary lobe pump is built with high-quality materials, ensuring durability and longevity. The pump's robust construction enables it to handle demanding applications, including those involving abrasive or corrosive fluids.

Hygienic Design

SeFluid prioritizes hygiene in its rotary lobe pump design. The pump features a clean and sanitary design, making it suitable for industries with stringent cleanliness and sanitation requirements, such as food and beverage processing and pharmaceutical production.

Customization Options

SeFluid offers customization options to tailor the rotary lobe pump to specific application needs. This includes options for different materials of construction, seal types, connections, and other specifications, ensuring the pump meets the unique requirements of each application.

Precise Control

SeFluid's rotary lobe pump allows for precise control of flow rates and pressure, providing flexibility in process optimization. This feature is particularly beneficial for applications that require accurate dosing or metering of fluids.

Applications of Rotary Lobe Pump

Rotary lobe pumps find applications in a wide range of industries and processes due to their ability to handle viscous fluids and solids. Here are some common applications of rotary lobe pumps:

Food and Beverage Industry

Rotary lobe pumps are extensively used in food and beverage processing for transferring viscous products like sauces, creams, yogurt, chocolate, and fruit purees. They are also suitable for handling delicate food items such as fruits, vegetables, and confectionery without damaging their integrity.

Pharmaceuticals and Cosmetics

Rotary lobe pumps are employed in pharmaceutical and cosmetic manufacturing processes for transferring creams, lotions, gels, ointments, and other high-viscosity fluids. Their gentle pumping action helps maintain the quality and consistency of sensitive products.

Chemical and Petrochemical Industry

Rotary lobe pumps are utilized in the chemical and petrochemical sector for transferring various liquids, including solvents, resins, adhesives, polymers, and sludges. They can handle corrosive fluids and hazardous chemicals with ease.

Wastewater Treatment

Rotary lobe pumps play a crucial role in wastewater treatment plants. They are used for pumping sludge, thickened slurry, and dewatered biosolids. The pumps' ability to handle solids and abrasives makes them suitable for these demanding applications.

Oil and Gas Industry

Rotary lobe pumps find applications in the oil and gas sector for processes such as transferring crude oil, drilling mud, and various hydrocarbon-based products. They can handle high-viscosity fluids and solids encountered in these operations.

Mining and Minerals

In mining and mineral processing, rotary lobe pumps are used for pumping slurries, tailings, and abrasive fluids. Their rugged construction and ability to handle solids make them suitable for the challenging conditions of these industries.

Paints and Coatings

Rotary lobe pumps are employed in the paints and coatings industry to transfer high-viscosity paints, varnishes, adhesives, and coatings. They ensure a consistent flow rate and minimize shear forces, preserving the quality of the final product.

Environmental Applications

Rotary lobe pumps are used in environmental applications such as biogas production, landfill leachate transfer, and wastewater reclamation. Their ability to handle viscous fluids and solids makes them suitable for these sustainable processes.

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