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We also sell Alnico and Rare Earth Magnetic Stir Bars.
We also offer a complete selection of levitation Stir Balls with various coatings. |
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Download
Video of Tumble Stirrering in action
Press the play button to view the video in a flash format, flash must be installed, or click the download link to download a mpeg version.
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| The ability to stir extremely viscous solutions, slurries and emulsions is a very useful characteristic of the V&P Alligator Tumble Stirrers. The following graphs illustrate the ability of our Tumble Stirrers and Stir Elements to mix even solutions of 100,000 centistokes or 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 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., For more extensive tables on the viscosity of common compounds and an explanation of the difference between centistokes and centipoise follow this link.
The most powerful of all our Tumble Stirrers is the VP 710S. It will tumble all the Stir Bar Elements in 100,000 cts when the plate is setting directly on the deck. The follow graph illustrates that it will even tumble most of them when the plate is elevated 1.2" or 30 mm above the stir deck. This equal to stacking the plates 3 high. |
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Data on the ability of the VP 710E to tumble in viscous solutions. |
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The designation "CE" on the catalog number of stirrers indicates the international version designed to operate on 230 Volts at 50 hertz. The international versions have passed rigorous testing and are CE compliant. All of the motors and controls used in the Alligator Tumble Stirrer are rated for continuous rugged usage and are maintenance free. So if you need to stir for long periods of time this system won't quit on you.
The VP 710A and VP 710ACE Rotary Tumble Stirrer models simultaneously stirs 3 layers of 9 microplates - 27 total or 2,592 specimens in 96 well microplates or 13, 824 specimens in 384 well microplates. The VP 710ACE is equipped with an 230 volt 50 hertz international motor and controller. These models are capable of spinning the stir elements at speeds up to 900 RPM. The high speed tumbling action is great for many applications especially if you want to stir the contents of deep well microplates. The ability to turn the stir elements over 900 RPM in the same direction, creates significant fluid movement. This fluid movement and the physical interaction with the stir elements is ideal for resuspending dried extracts, mixing viscous reagents and keeping organisms or beads in suspension in deep well microplates.
LEASE/OPTION TO BUY PROGRAM
The Alligator Tumble Stirrers are available on a lease/option to buy program. This allows you to do Proof of Principle experiments to see if Magnetic Tumble Stirring will work in your application. If it works for you, then the first month lease payment is applied to the purchase price of any of our Stirrers. The first month lease payment is only 10% of the purchase price. If it doesn't work in your application just send it back to us. (We don't get many back). The second month lease is 50% of the purchase price and is NOT applicable to the purchase price of another stirrer.
The new inexpensive VP 710C and VP 710T Alligator Tumble Stirrers have a 20% of the purchase price for the first month lease payment. The second month lease payment is 40% of the purchase price and is NOT applicable to the purchase price of another stirrer.
Inquire about lease terms mailto:sales@vp-scientific.com
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These Stirrers, with their 900 RPM speed, are ideal for mixing in 96 deep well microplates or racks of glass vials containing chemical libraries. This Alligator Tumble Stirrer fits comfortably on the deck of a Tecan Genesis robotic workstations and can be used to resuspend libraries of stored compounds prior to sampling.
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Although it was designed for heating blocks it can also be used to stir microplates. There is space to stack 4 microplates on the deck and then stir them when they are stacked several plates high. If you want to stir microplates we suggest you order the VP 710S1 modification which is designed to stir a foot print of 7 microplates.
The deck is insulated against heat up to 180°C and a cooling fan keeps the motor within operating specifications. The overall dimension of the unit are 18.4 cm wide, 71.4 cm long, 33.3 cm tall. The dimensions of the stir deck are 18.4 cm wide, 34 cm long and 18 cm tall. |
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The VP 710S1 is fitted with a series of notches in the
deck that allow cable ties to be used to hold the stacks of microplates
securely on the deck. The overall dimensions of the unit are 34.3 cm wide, 71.4 cm long, 24.1 cm tall.
Download
Video of VP 710S1 in action
Press the play button to view the video in a flash format, flash must be installed, or click the download link to download a mpeg version. |
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The length of the area to be stirrer can be varied for custom applications. The standard dimensions including motor length are 27.7 cm long, 5.7 cm wide by 5.9 tall with a stirred area of 14 cm long. The stir deck weighs only 2.2 kg. This stirred area is designed to stir one microplate footprint in "portrait" or 2 microplates in "landscape". Standard microplates can stacked on top of each other 4 high and still be stirred. Max number of plates to be stirred is 8. |
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The VP 710SM is powered by a 28 oz-in torque motor.
Easily integrate "Smart Motor" tumble stirrers with your robotic systems and applications by using the provided software library. The software library and documentation can be found here. |
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The VP 710SM3P is powered by a rugged 210 oz-in torque motor. If you want a heavy duty continuous stirring system on your robot deck this is the unit for you.
All of the above Smart Motor Tumble Stirrers have features that allow them
to be easily mounted onto or under surfaces. Easily integrate "Smart Motor" tumble stirrers with your robotic systems and applications by using the provided software library. The software library and documentation can be found here. |
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The VP 710C1 is made by encasing the motor in ABS plastic and attaching a dual plate holder to the stir deck of a VP 710C. It is designed to stir 1 (portrait) or 2 (landscape) plate foot prints and easily fits directly on many robot decks. Plates can be stacked 6 high (76 mm) in the landscape position on this system so that up to 12 Standard plates or 4 deep well microplates can be stirred at the same time. Standard plates can be stacked 8 high (127 mm) or 3 high with deep well plates in the portrait position. The standard dimensions are 40.1 cm long, 8.9 cm wide by 7.7 cm tall with a stirred area of 14 cm long and 11 cm wide. The plate holder is 20.3 cm long and 13.8 cm wide.
The skin of the stirrer is made of ABS plastic and will tolerate Heating Blocks with temperatures up to 60C. We suggest you use the VP 710G11H when used with higher temperature Heating Blocks or contact us for custom solutions.
The VP 710C1 is powered by a rugged 50 oz-in torque DC Brush Servo Motor. If you want a utility duty intermittent stirring system under your robot deck this is the unit for you. |
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The photo above illustrates the "portrait position".
The plate holder is designed to maintain the plate(s) in the center of the optimal stirring area.
The photo to the right illustrates the "landscape position".
The VP 710C1 have features that allow them to be easily mounted onto or under surfaces.
The VP 710C1 stirrer is also available in a CE compliant version - VP 710C1CE.
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Plates can be stacked 6 high (76 mm) in the landscape position on this system so that up to 12 Standard plates or 4 deep well microplates can be stirred at the same time. Standard plates can be stacked 8 high (127 mm) or 3 high with deep well plates in the portrait position. The standard dimensions are 43 cm long, 8.9 cm wide by 7 cm tall with a stirred area of 17.8 cm long and 11 cm wide. The plate holder is 24.8 cm long and 15.4 cm wide.
The skin of the stirrer is made of ABS plastic and will tolerate Heating Blocks with temperatures up to 60C. We suggest you use the VP 710G11H when used with higher temperature Heating Blocks or contact us for custom solutions.
The VP 710C1-7 is powered by a rugged 50 oz-in torque DC Brush Servo Motor. If you want a utility duty intermittent stirring system under your robot deck this is the unit for you. |
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The VP 710C1-7 have features that allow them to be easily mounted onto or under surfaces.
The VP 710C1-7 stirrer is also available in a CE compliant version - VP 710C1-7CE.
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Download video of
Tumble Stirrer to Vortex Stirrer using VP
708-CON
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The photo to the right demonstrates the vast diversity of containers the VP 708-CON is able to accommodate. |
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This video demonstrates the VP 708-CON and it's wide variety of mixing capabilities.
Download Video
VP 708-CON
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One of the advantages of the FXALP-PM is that Bubble Paddles reservoirs can be locked into a fixed position.
The new designation for the modified Tumble Stirrer is the VP 710C1-ALPFX. It is made by encasing the motor in ABS plastic and placing mounting holes and bracket on the sides instead of the top. It is designed to stir 1 (portrait) position. Plates can be stacked 4 high (48 mm) in this position. The standard dimensions are 40.1 cm long, 7.7 cm wide by 8.9 cm tall with a stirred area of 14 cm long and 11 cm wide.
The skin of the stirrer is made of ABS plastic and will tolerate Heating Blocks with temperatures up to 60C. We suggest you use the VP 710G11H when used with higher temperature Heating Blocks or contact us for custom solutions.
The VP 710C1-ALPFX is powered by a rugged 50 oz-in torque DC Brush Servo Motor. If you want a utility duty intermittent stirring system under your FX ALP this is the unit for you. VP OK21 & VP OK22 Kits
The VP OK21 and VP OK22 differ in that the VP OK22 is the CE version which allows for use with countries that use 230volt electricity.
These kits consist of:
VP 710C1-ALPFX or VP 710C1-ALPFXCE VP 750PTFE VP 581B (modified to attach to VP 750PTFE)
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Another advantage of the FXALP-PM2W is that Bubble Paddles reservoirs or their SBS blocks can be locked into a fixed position.
The new designation for the modified Tumble Stirrer is the VP 710C1-FXALP2W. It is made by encasing the motor in ABS plastic and placing mounting holes and bracket on the sides instead of the top. The standard dimensions are 40.1 cm long, 7.7 cm wide by 8.9 cm tall with a stirred area of 14 cm long and 11 cm wide.
The skin of the stirrer is made of ABS plastic and will tolerate Heating Blocks with temperatures up to 60C. We suggest you use the VP 710G11H when used with higher temperature Heating Blocks or contact us for custom solutions.
The VP 710C1-FXALP2W is powered by a rugged 50 oz-in torque DC Brush Servo Motor. If you want a utility duty intermittent stirring system under your FX ALP this is the unit for you.
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VP 710C1-M |
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The VP 710C!-M-KIT is built around the versatile VP 710C1-M Rotary Magnetic Tumble Stirrer. The kit comes with 3 different accessories to attach the Tumble Stirrer to various robotic decks. One element of the kit is the VP 581B-2 which when attached to the bottom of the VP 710C1-M allows the Tumble Stirrer to precisely positioned on the deck of many different robot platforms (including the Tecan Evo, Caliper Sciclone, Hamiliton Microlab, Star and many others). |
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The VP 581-PE shown in the photo to the right, when attached to the bottom of the VP 710C1-M allows the Tumble Stirrer to be precisely positioned on the deck of the PerkinElmer EP3 and Janus Robots using the same pins as the deck tiles of these Robots. |
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The VP 710C1-M also comes equipped with a microplate holder that willl accomodate one plate in portrait and two in landscape position. |
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The FXALPS-PMS shown in the photo to the right, when attached to the VP 710C1-M allows the Tumble Stirrer to be precisely positioned on the deck of the Beckman FX and NX Robots using the same pins as the ALPs of these Robots.
In cases where the Tumble Stirrer needs to be balanced we have provided a leveling glide (arrow). |
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The VP 710G11H is powered by a rugged 50 oz-in torque DC Brush Servo Motor using a 5:1 gear head. If you want a utility duty intermittent stirring system that can stir a heat block this is the unit for you. |
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The photo to the right illustrates that this stirrer can also be used to stir 2 microplates in the landscape position, without the heat block being present. |
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Also available in a CE compliant format as the VP 710G6HHTCE |
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VP 710G6HHT-AIR |
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Another advantage of the air motor is they are more rugged than the brush motors used in the VP 710G6HHT and can be operated 7/24/365. |
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VP 710G11H |
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The Stirred zone in the VP 710G11H is 25.4 cm long and is capable of stirring the contents of two VP 741A-R as illustrated in the photo to the right. |
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The photo to the right illustrates the bottom view of a VP 741A-R. |
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The deck area is designed with a pocket of SBS dimensions
that allows you to secure the heat block into pocket via 4
locking thumb screws. See arrows in the photo to the
right. Easily integrate "Smart Motor" tumble stirrers with your robotic systems and applications by using the provided software library. The software library and documentation can be found here. |
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It is designed to stir 1 (portrait) or 2 (landscape) plate foot prints and easily fits directly on many robot decks. Plates can be stacked 6 high (76 mm) in the landscape position on this system so that up to 12 Standard plates or 4 deep well microplates can be stirred at the same time. Standard plates can be stacked 8 high (127 mm) or 3 high with deep well plates in the portrait position. The dimensions are 47.2 cm long, 8.9 cm wide by 7.1 cm tall with a stirred area of 14 cm long and 11 cm wide. The plate holder is 20.3 cm long, 13.8 cm wide and 6.6 cm tall.
The skin of the stirrer is made of ABS plastic and will tolerate Heating Blocks with temperatures up to 60C.
The VP 710G6 is also available in a CE compliant version for sale to Europe, VP 710G6CE
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The VP 710MXL7T is a powerful Tumble stirrer used to work against significant resistant forces at ultra low speeds. We use a powerful Maxon motor with an efficient 74 to 1 gear head to produce a powerful low speed rotation that is necessary when stirring very viscous liquids or solids. The gear ratio is designed to stir as low as 10 RPM and as high as 89 RPM. A digital Tachometer and a digital display allow you to precisely control the speed of mixing.
It is designed to stir 1 (portrait) or 2 (landscape) plate foot prints and easily fits directly on many robot decks. Plates can be stacked 6 high (76 mm) in the landscape position on this system so that up to 12 Standard plates or 4 deep well microplates can be stirred at the same time. Standard plates can be stacked 8 high (127 mm) or 3 high with deep well plates in the portrait position. The dimensions are 47.0 cm long, 10.2 cm wide by 5.8 cm tall with a stirred area of 16.5 cm long and 13.5 cm wide. The plate holder is 23.1 cm long, 13.8 cm wide and 7.5 cm tall.
The skin of the stirrer is made of ABS plastic and will tolerate Heating Blocks with temperatures up to 60C.
The VP 710MXL7T is also available in a CE compliant version for sale to Europe, VP 710MXL7TCE |
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In addition to mixing in microplates our Tumble Stirrer also do a very good job mixing in vials and test tubes of every size. We also make vial and test tube racks of polypropylene, PTFE. UHMW, HDPE, PVC, Delrin, ABS and aluminum. |
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The VP 710T is the latest development in the Alligator Tumble Stirrers. For Customers who want to incorporate the Magnetic Cylinder into their work station deck, simply attach the mounting brackets right to the Profile Table. With many work stations there is ample room to accommodate even our largest motors. The photo to the right illustrates the mounting system we used on a Tecan workstation. |
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