Lab Equipment Magnetic Stirrer
(1)LCD/Double Knob/Timmer/Heating Plate
(2)Stirring Volume:5L
2. Large Capacity Magnetic Stirrer
(1)Double Knob/DC Brushless Motor/100~240V/5~40°C 80%RH
(2)Stirring Volume:10L/20L/50L
3. Multi Link Magnetic Stirrer:
(1)Double Knob/LCD/100~240V/100~1500RPM
(2)Stirring Volume:3*1/6*1/9*1
4. Mini Magnetic Stirrer:
(1)Miniature Brushless Motor/Stepless Speed Regulation/0~2000RPM/AC 220V 50Hz
(2)Stirring Volume:2L
5. Single Control Multi Connection Magnetic Stirrer:
(1)LED Digital/0~1600RPM/RT±5~99.9°C/220V 50/60Hz
(2)Stirring Volume:4*1/6*1
***Price List for whole above, inquire us to get
Description
Technical Parameters
Lab Equipment Magnetic Stirrer is a commonly used laboratory instrument, mainly used for stirring or mixing substances such as liquids, suspensions, or powders. It uses the force of a magnetic field to drive the stirrer to rotate in the container, thereby achieving the purpose of stirring or mixing. From the perspective of product classification, it can be divided into laboratory equipment and industrial equipment according to their different uses. Laboratory equipment are mainly used in scientific research and teaching fields, while industrial equipment are used in large-scale production processes.
Classified
Classified bystructural form:
(1) Vertical magnetic stirrer: The stirrer of the vertical equipment is placed vertically at the bottom of the container, and is driven to rotate by the force of the magnetic field, achieving the purpose of stirring or mixing.
The advantage of a vertical product is its small footprint, easy cleaning and maintenance, and suitability for stirring small capacity liquids or suspensions.
(2) Horizontal magnetic stirrer: The stirrer of the horizontal equipment is placed horizontally at the bottom of the container, and is also driven to rotate by the force of the magnetic field.
The advantage of a horizontal product is that it can accommodate a larger capacity of liquid or suspension, and can be equipped with various auxiliary devices such as heating, cooling, vacuum, etc., suitable for large-scale mixing or stirring experiments.
According to different special functions, lab Equipment Magnetic Stirrer can be divided into various types. The following are some common special types and their characteristics:
Propulsion type magnetic stirrer with stabilizing ring:
This type of equipment has a stabilizing ring set around the stirrer to increase the shear force on the liquid, thereby more effectively pushing and mixing the liquid.
This design is particularly suitable for experiments that require stable and continuous propulsion flow.
Conical screw stirrer:
The stirrer of this stirrer has a conical screw structure, which can generate strong axial flow and is suitable for situations that require high shear forces, such as dispersion, suspension, and emulsification.
Three blade swept back agitator:
The agitator of this agitator has a three blade swept back design, which can generate strong circulating flow and is suitable for mixing or reaction processes that require a large amount of circulation.
Six concave blade disc turbine agitator:
The agitator of this agitator adopts a six concave blade disc turbine structure, which can generate strong radial flow and is suitable for situations that require high dispersion, such as the suspension or dispersion of solid particles.
These special types oflab Equipment Magnetic Stirrer each have their own characteristics and application ranges, and users can choose appropriate equipment according to their experimental needs. For example, if the experiment requires stable propulsion flow, a product with a stable ring propulsion can be chosen; If the experiment requires high shear force to disperse or suspend solid particles, a conical screw stirrer or a six concave blade disc turbine stirrer can be selected. By selecting the appropriate type of product, the experimental requirements can be better met, and the efficiency and success rate of the experiment can be improved.
Case Study
► Case Study 1: Optimizing Bioprocessing in Cell Culture
1.1 Scenario
BioGen Solutions, a biotech startup, focused on large-scale production of monoclonal antibodies (mAbs) for cancer therapy. Their fed-batch bioreactor processes required precise mixing of culture media to maintain cell viability and protein yield.
1.2 Challenge
Oxygen Transfer Limitations: Inadequate mixing led to oxygen gradients, reducing cell density by 25%.
Shear Stress Sensitivity: High-speed impellers damaged mammalian cells, lowering antibody titers.
Sterility Concerns: Open-system mechanical stirrers risked contamination.
1.3 Solution
BioGen deployed magnetic stirrers with low-shear stir bars and integrated DO (dissolved oxygen) sensors in 50–200 L bioreactors. Key innovations:
Gentle Mixing: Teflon-coated, egg-shaped stir bars minimized shear forces.
Feedback Control: DO sensors adjusted stirring speed to maintain optimal oxygen levels.
Closed-System Design: Sterile connectors and autoclavable components ensured GMP compliance.
1.4 Outcomes
Improved Cell Viability: Uniform mixing boosted cell density by 30%.
Higher Antibody Yields: mAb production increased by 22%, reducing per-gram costs.
Reduced Contamination Risks: Zero culture failures due to contamination over 12 months.
Scalability: Consistent performance from lab-scale to pilot-plant trials.
3.5 Key Takeaway
Magnetic stirrers enable scalable, sterile, and low-shear mixing in bioprocessing, enhancing productivity and product quality.
► Case Study 2: Environmental Remediation via Heavy Metal Extraction
2.1 Scenario
EcoClean Labs, an environmental consulting firm, developed a phytoremediation process to extract arsenic from contaminated soil. The method involved leaching arsenic with chelating agents (e.g., EDTA) and recovering it via precipitation.
2.2 Challenge
Heterogeneous Soil Slurries: Manual stirring failed to disperse soil particles uniformly, slowing leaching rates.
Toxic Fumes: EDTA solutions released volatile ammonia during heating, posing inhalation risks.
Energy Inefficiency: Prolonged mixing (24+ hours) consumed excessive power.
2.3 Solution
EcoClean used explosion-proof magnetic stirrers with corrosive-resistant PTFE plates and vacuum-sealed reactors. Key features:
High Torque Motors: Mixed 10–15 kg soil slurries at 500–800 RPM.
Fume Extraction: Integrated ports connected to scrubbers for ammonia capture.
Energy-Efficient Design: 70% lower power consumption vs. overhead stirrers.
2.4 Outcomes
Faster Leaching Kinetics: Arsenic extraction efficiency improved by 40%.
Worker Safety: Sealed systems reduced ammonia exposure to below OSHA limits.
Cost Savings: 25% reduction in energy and reagent costs per treatment cycle.
Regulatory Compliance: Consistent results met EPA cleanup standards.
2.5 Key Takeaway
Specialty magnetic stirrers are vital in environmental remediation, ensuring safety, efficiency, and compliance in hazardous waste treatment.
Precautions for use
Choose the appropriate container:
Choose the appropriate container material and size according to the experimental requirements, ensuring that the container can withstand magnetic field forces and rotational speed.
Attention to safety:
Maintain a safe distance during use and avoid placing hands or other objects near the rotating mixer. At the same time, it is necessary to regularly check whether the wires and components of the equipment are working properly to avoid safety accidents such as electric shock.
Control the appropriate temperature:
If a equipment needs to be used during heating or cooling, appropriate heating or cooling accessories should be selected and the temperature should be controlled properly.
Place appropriate stirrers:
Select the appropriate type and specification of stirrers based on the type of substance being processed in the experiment to ensure efficient mixing effect.
Cleaning and maintenance:
Clean the surface and internal components of the equipment in a timely manner after use, regularly inspect and replace vulnerable parts.
Advancements in Magnetic Stirrer Technology
Over the years, significant advancements have been made in magnetic stirrer technology, leading to the development of more sophisticated and versatile instruments. Some of the most notable advancements include:
● Digital Control and Monitoring
Modern magnetic stirrers often feature digital control panels that allow for precise setting and monitoring of stirring speed, temperature, and timer settings. This digital interface makes it easy for operators to program and monitor their stirrers, reducing the risk of human error and increasing the reproducibility of results.
● Enhanced Stirring Efficiency
Advancements in electromagnet design and stir bar materials have led to significant improvements in stirring efficiency. Modern magnetic stirrers can handle a wider range of viscosities and volumes, providing more consistent mixing results.
● Temperature Control Precision
Temperature control has become more precise and stable in recent years, thanks to advancements in sensor technology and heating element design. Modern magnetic stirrers can maintain temperatures within tight tolerances, making them suitable for applications where temperature control is crucial.
● Compact and Ergonomic Design
Manufacturers have focused on designing magnetic stirrers that are both compact and ergonomic. This has led to the development of ultra-thin stirrers and stirrers with adjustable heights and angles, making them more comfortable to use and easier to integrate into laboratory workflows.
● Integrated Safety Features
Safety has always been a priority in laboratory equipment design, and magnetic stirrers are no exception. Modern stirrers often incorporate safety features such as overheat protection, auto-shutdown, and emergency stop buttons to minimize the risk of accidents and injuries.
Latest Advancements
Recent advancements in magnetic stirrer technology have led to the development of more sophisticated and versatile instruments. Here are some of the latest trends and innovations:
● Digitalization: Digital magnetic stirrers offer more precise control over stirring speed, temperature, and other parameters. They often have built-in data logging and communication capabilities, allowing for easy monitoring and data analysis.
● Modular Design: Modular stirrers allow for easy customization and upgrading. Users can add or replace components as needed, making the stirrer more adaptable to different applications and requirements.
● Enhanced Safety Features: Newer stirrers come with advanced safety features, such as overheating protection, automatic shut-off, and emergency stop buttons. They also have improved sealing and leak-proof designs to prevent spills and contamination.
● Multi-Functionality: Some stirrers are now equipped with additional functions, such as pH control, dissolved oxygen measurement, and UV sterilization. This makes them more versatile and suitable for a wider range of applications.
● Compact Design: Compact and portable stirrers are becoming more popular, especially in fields where space is limited or where stirrers need to be transported frequently.
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