Multi-Position Magnetic Stirrer
Multi-position magnetic stirrer with brushless DC motor providing simultaneous stirring across 4-10 positions with speeds up to 1500rpm for enhanced laboratory throughput.
Louise Corscadden, PhD
Neuroscience · ConductScience
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The Multi-Position Magnetic Stirrer provides simultaneous magnetic stirring across multiple positions for enhanced laboratory productivity. This benchtop instrument features a brushless DC motor system driving multiple stirring positions with independent speed control ranging from 0-1500rpm. The stainless steel work plate with silicone coating ensures chemical resistance and sample protection during extended mixing operations.
Multiple configuration options accommodate varying throughput requirements, with models supporting 4-10 stirring positions and maximum capacities ranging from 0.4L to 3L per position. The unit's compact design optimizes bench space utilization while providing consistent magnetic coupling across all positions. Temperature-resistant construction and corrosion-resistant materials ensure reliable performance in analytical and preparative chemistry applications.
How It Works
The Multi-Position Magnetic Stirrer operates through electromagnetic induction principles, where rotating magnetic fields generated beneath the work plate couple with magnetic stir bars placed in sample containers. The brushless DC motor system creates precisely controlled magnetic fields that induce rotation in the stir bars, providing consistent mixing action without direct mechanical contact with samples.
Each stirring position features independent magnetic field generation, allowing simultaneous operation at different speeds across positions. The stainless steel work plate with silicone coating provides both chemical resistance and thermal insulation while ensuring optimal magnetic field transmission. The brushless motor design eliminates wear-related maintenance while providing precise speed control from 0-1500rpm.
The multi-position design incorporates magnetic field isolation between positions to prevent cross-interference, ensuring each stirring location maintains independent control. This configuration enables researchers to process multiple samples under identical or varied stirring conditions simultaneously, significantly improving laboratory productivity compared to single-position stirring systems.
Features & Benefits
Automation Level
- manual
MS-H-S10(8030140000)
- 84-1(4 positions)
84-1(6 positions)
- 524G
Work Plate Size
- 180*450mm
290*280mm
- 420*300mm
Work Plate Material
- Stainless steel with silicone coating
Stainless steel covered with silicone cushion
- Stainless steel
Aluminum alloy
- Stainless steel
Max. Stirring Capacity
- 0.4L*10
0.4L*10
- 1.5L*4
1.5L*6
- 3L*4
Motor Type
- Brushless DC motor
Speed Range
- 0~1100rpm
0~1500rpm
- 0~1400rpm
Digital Display
- /
Brand
- ConductScience
Research Domain
- Analytical Chemistry
- Cell Biology
- Environmental Monitoring
- Food Science
- Materials Science
- Microbiology
- Pharmaceutical QC
Weight
- 7.5 kg
Dimensions
- L: 6.5 mm
- W: 62.2 mm
- H: 20.5 mm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Number of Stirring Positions | 4-10 positions depending on model configuration | Entry-level models typically offer 1-4 positions | Higher position count enables greater sample throughput and parallel processing efficiency |
| Motor Technology | Brushless DC motor system | Many models use brushed motors requiring periodic maintenance | Eliminates brush replacement and provides more precise speed control with longer operational life |
| Maximum Stirring Capacity | Up to 3L per position in larger configurations | Standard models often limit capacity to 1L or less per position | Accommodates both analytical and preparative scale sample preparation in a single instrument |
| Speed Range | 0-1500rpm maximum range | Basic stirrers typically offer narrower speed ranges | Wide speed range accommodates diverse sample viscosities and mixing requirements |
| Work Plate Material | Stainless steel with silicone coating | Standard models may use basic plastic or uncoated metal surfaces | Enhanced chemical resistance and sample protection during extended mixing operations |
| Physical Footprint | Multiple configurations available with optimized space utilization | Single-position units require multiple instruments for parallel processing | Consolidates multiple stirring capabilities into a single benchtop instrument |
This multi-position magnetic stirrer combines high-capacity parallel processing with brushless motor reliability and chemical-resistant construction. The flexible configuration options and wide speed range make it suitable for diverse analytical and preparative applications requiring simultaneous sample processing.
Practical Tips
Verify speed accuracy periodically using a tachometer at each stirring position to ensure consistent performance across all locations.
Why: Multi-position systems may develop slight speed variations over time that could affect experimental reproducibility.
Clean the silicone-coated work plate with mild detergent after each use and inspect for chemical damage or wear patterns.
Why: The silicone coating protects both samples and equipment but can degrade with exposure to strong solvents or acids.
Match stir bar size to container volume, using bars approximately one-third the container diameter for optimal mixing efficiency.
Why: Properly sized stir bars ensure complete mixing while preventing bar displacement or inadequate circulation patterns.
Start stirring at low speeds and gradually increase to prevent sample splashing or stir bar decoupling, especially with multiple positions operating.
Why: Sudden speed changes can cause magnetic coupling loss or sample loss, particularly when multiple positions are running simultaneously.
If a stirring position loses magnetic coupling, check for proper container centering and verify the stir bar is not damaged or magnetized incorrectly.
Why: Off-center placement or damaged stir bars are common causes of coupling failure in multi-position systems.
Record stirring speed and duration for each position to ensure experimental reproducibility across sample batches.
Why: Consistent mixing parameters are critical for analytical accuracy and method validation in quantitative procedures.
Secure loose containers and avoid overfilling to prevent spills when multiple positions are operating simultaneously.
Why: Multi-position operation increases the risk of sample cross-contamination if containers are displaced or overfilled during stirring.
Inspect magnetic stir bars regularly for chips, cracks, or coating damage that could contaminate samples or affect performance.
Why: Damaged stir bars can introduce contaminants or create uneven magnetic coupling that affects mixing consistency.
Setup Guide
What’s in the Box
- Multi-Position Magnetic Stirrer main unit
- Power cord
- User manual with specifications
- Set of magnetic stir bars (typical)
- Calibration certificate (typical)
Warranty
ConductScience provides a standard one-year manufacturer warranty covering materials and workmanship defects. Technical support is available for installation, calibration, and operational guidance throughout the warranty period.
Compliance
References
Background reading relevant to this product:
What is the maximum volume capacity per stirring position?
Maximum capacity varies by model configuration, ranging from 0.4L in high-density 10-position models to 3L in 4-position configurations. Consult the product datasheet for specific capacity limits for your selected model.
Can different stirring speeds be set for each position simultaneously?
The specifications indicate multiple position capability, but independent speed control per position depends on the specific model configuration. Consult the product datasheet for detailed control specifications.
What type of containers are compatible with the stirring positions?
The stainless steel work plate accommodates standard laboratory glassware including beakers, flasks, and reaction vessels. The silicone coating provides stable placement for various container types while protecting against chemical exposure.
How does the brushless motor design affect maintenance requirements?
Brushless DC motors eliminate carbon brush wear, reducing maintenance to periodic cleaning and calibration verification. This design provides extended operational life with minimal downtime compared to brushed motor systems.
What is the speed stability across all stirring positions?
The brushless motor system provides consistent speed control from 0-1500rpm, though specific speed stability specifications should be verified in the product datasheet for your application requirements.
Can the unit operate continuously for extended periods?
The temperature-resistant construction and brushless motor design support continuous operation, though specific duty cycle limits and thermal specifications should be confirmed in the technical documentation.
How does magnetic field isolation prevent cross-interference between positions?
The multi-position design incorporates magnetic field isolation technology to ensure independent stirring control, though detailed specifications on field isolation should be verified in the product documentation.
What safety features are included for laboratory use?
The unit includes chemical-resistant materials and stable construction for laboratory safety, though specific safety certifications and protective features should be confirmed in the product specifications.
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