VP 710E5 - Vertical Tumble Stirrer, Accommodates 5 Stacks of Microplates (4 Plates high), with RPM Meter, 110 Volts, Robot Deck Compatible

Servo Motor powered Rotary Magnetic Tumble Stirrer, high speed and high torque, low profile 54cm long deck made from ABS, stirs 5 deep well microplates, 48 MGO magnetic cylinder, with RPM meter on LCD - 115/230 Volts, 50/60 Hz, CE compliant
SKU: VP 710E5

Availability: In stock

  Description    Specifications    Details    Applications    Media    Blogs  
Servo Motor powered Rotary Magnetic Tumble Stirrer, high speed and high torque, low profile 54cm long deck made from ABS, stirs 5 deep well microplates, 48 MGO magnetic cylinder, with RPM meter on LCD - 115/230 Volts, 50/60 Hz, CE compliant
Additional Info
Motor Coupling Type Direct Drive
Motor Spec's NEMA 23, Triple Stack
Mode of Use For Benchtop Use, For Robotic/Liquid Handler Use
MGO - Attribute 48
RPM (Min) 1
Power Supply 48VDC, 5A
RPM (Max) 1000
Materials - Attributes ABS
Stirrer Categories Stirring Systems
Magnetic Cylinder Length 19"
Length No
Width No
Height No
Dimensions (L X W x H) 660.4 mm x 158.75 mm x 76.2 mm
Container To Be Used Microplates, Reservoirs, Syringes, Tubes, Vials

Alligator Vertical Tumble Stirrers

The Alligator Magnetic Vertical Tumble Stirrer uses patented stir-cylinder technology to mix large numbers of samples in tubes, vials, bottles, and microplates (USA Patent #6,176,609). Instead of spinning a magnetic stir bar about the horizontal plane like the standard magnetic flask stirrer, the Alligator Vertical Tumble Stirrer causes stir elements of all sizes and shapes to tumble vertically end-over-end inside each well or vessel. The Alligator Vertical Tumble Stirrer will stir all types of microplates of any volume or format  It will also stir V and U bottom microplates, PCR plates, micro-centrifuge tubes, test tubes, syringes, vials and bottles, and special designed troughs and reservoirs.  Perhaps the best way to appreciate the how the Allligator Vertical Tumble Stirrers function is to see all the videos above this section.


Advantages of the Vertical Tumble Stirring System

-Can stir in any vessel regardless of the size or shape

-No cross contamination – wells do not have to be sealed

-High–Throughput Stirring in stacks of Microplates

-Simple to operate, full speed control

-Can increase the aereation of microbial cultures and increase yield

-Can set exact RPM for reproducible results day to day

-Complete stirring of large numbers of samples

-Designed to be compatible with most robotic systems

-Can stir chemical reactions to speed completion

-Flexibility of stir deck alignment

-Can stir and heat to 200C at the same time

-Custom designs are not a problem

-Can run multiple experiments in parallel

-Durable – Can stir continuously for years without maintenance.

-Get more reactions per gram of starting material

-Computer control available

-Will stir even 100,000 centistoke viscous solutions (6.6 times more viscous than honey)

-Available in 110 volt and 220 volt (CE compliant) versions

-Will stir even thick slurries and emulsions


Many Models available

Using the most powerful permanent magnets manufactured, we make many different models of Vertical Tumble Stirrers to fit the many varied applications and requirements of our customers. Requirements for heating and continuous stirring for a long period of time require special Vertical Tumble Stirrers that are resistant to heat and with motors capable of working under high loads for extended periods of time. We make our Vertical Tumble Stirrers heat resistant using Mica.  The Mica deck will accomdate three our V& P heat blocks operating at 200C.    Please check with our knowledgeable staff to help you make the appropriate selection for your application. Our specialty is flexibility- let us know if you have a custom application today!

Published Articles

Click here for a list of published articles that cite using the products on this page.

Stir Elements designed for Vertical Tumble Stirring

We offer a large assortment of magnetic Stainless Steel Stir Elements from Stir StiXs to Discs to bars and dowels to fit into any well, vial, tube or syringe.  Check out the Stir Element page for more information on coatings and dimensions.

We also sell Alnico and Rare Earth Magnetic Stir Bars.

Tumble Stirring Viscous Solutions

The ability to stir extremely viscous solutions, slurries and emulsions is a very useful characteristic of the V&P Alligator Tumble Stirrers.  Our Vertical Tumble Stirrers and Stir Elements have the ability to mix even solutions of 100,000 centistokes (6.6 times more viscous than honey).   


The following experiments were performed with VP 710S and VP 710E Alligator Tumble Stirrers and all our stir elements at two different heights.  The first was at 1.2" off the stir deck or at a position of 3 stacked microplates.  The other position was right on the stir deck.  A series of silicone viscosity standards was placed in the columns of a microplate.  The standard series viscosity was as follows: 100 cks, 1,000 cks, 5,000 cks, 10,000 cks, 12,500 cks, 30,000 cks, 60,000 cst and 100,000 cks.

For comparison 1 centistoke = 1.0760 x 10E-5 sq. ft./sec., 
water = 1 cks
molasses ~ 2,500 cks
honey ~ 15,000 cks 

For more extensive tables on the viscosity of common compounds and an explanation of the difference between centistokes and centipoises follow this link.

When stirring very viscous materials we also offer Alnico and Rare Earth Magnet Stir Bars.


Stirring Systems

Horizontal Magnetic Stirring

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Multiple Tube/Bottle Stirring

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Microplate Stirring

  • Tumble Stirring
    • Process Parallel synthetic reactions
    • Facilitates Micro-fermentation reactions
    • Parallel Artificial Membrane system to evaluate absorption
    • Mix and aerate cultures to increase yield
    • Solubilize compounds dried in microplates
    • Mix bread dough
    • Quantitative measure of cytotoxicity of anticancer drugs and other agents
    • High throughput solubility determination with application to selection of compounds for fragment screening
    •  parallel fed-batch cultivations in microbioreactors 
    • High-throughput cocrystal slurry screening
    •  Photosynthetic efficiency and oxygen evolution of Chlamydomonas reinhardtii
    •  Cannabinoids inhibit the respiration of human sperm 
  • Levitation Stirring in deep well microplates
    • Mix Biocides into paint
    • Mix Biocides into tooth paste
    • Mix Biocides into Lotions
    • Mix Biocides into mascara
    • Re-suspend DNA  and RNA
    • Culture silk worm army cells for plasmid production
    • Domain mapping of the Rad51 paralog protein complexes
    • Very high-throughput rapid extraction alkaline lysis mini-preps of plasmid DNA 

Heating/Cooling With Stirring

  • Solubility studies
  • Adaptive Laboratory Evolution
    • Growth Rate, Metabolite Production, and Final Biomass in a Tumble Stirred Culture Vessel
    • Measurement of oxygen consumption by murine tissues in vitro 

Reservoir Stirring to keep Particulates in Suspension

  • Magnetic bead suspensions
    • High-Resolution Profiling of Stationary-Phase Survival Reveals Yeast Longevity Factors and Their Genetic Interactions
  • Glass bead suspensions (yttrium oxide SPA beads)
  • Agarose bead suspensions
  • Micro-organism suspensions
  • Slurry suspensions
    • Expression of a fungal ferulic acid esterase in alfalfa modifies cell wall digestibility
  • Particulate suspensions
    •  High throughput solubility determination with application to selection of compounds for fragment screening

Tumble Stirring Applications

  • Rapid and efficient stirring of any format microplates, test tubes, vials and syringes
  • Thorough mixing of 2 or more liquid solutions
  • Thorough mixing of slurries, viscous solutions and emulsions
  • Thorough mixing of immiscible liquids 
  • Keep particulates in suspension 
  • Resuspend chemical libraries after storage
  • Aeration of microbial cultures to increase DNA or protein yield
  • Miniaturization of fermentations & chemical reactions
  • Stirring chemical reactions to speed completion
  • Heat and Stir to facilitate compound synthesis
  • Enables parallel synthetic development of processes
  • Resuspend settled microorganisms
  • Keep microorganisms suspended during gridding operations
  • Break up filamentous organisms
  • Dissolve solid compounds
  • Resoluabilize dried extracts from large screening libraries
  • Mix and immobilize reactions that use magnetic beads
  • Computer control for use on automated liquid handling platforms 


None at this time


Tech Notes