Tumble Stirrer Dispensers

     
   
Autoclaveable flip dispensers
Autoclaveable drop dispensers
Autoclaveable Stir StiX dispensers
Demagnetizer
Magnetic Replicator
Tumble Stir Machine
     


 
Drop Tumble Stirrer Dispensers

     
   

V&P Scientific has developed a simple and efficient method of placing sterile stir bars, dowels and discs (stir elements) into microplates with liquid already in them.  Simply pour bulk stir elements into the appropriate dispenser, shake/swirl until each of the holes is filled, pour off excess stir elements, place over microplate and dispense (drop) stir elements into the wells.  The Drop dispensers on this page are made from plastic material and can not be sterilized by autoclaving.   They can be disinfected with bleach or alcohol. 

 

A key factor in loading the stir elements into the dispensers is that they must not be magnetic.  If they are magnetic they will stick together and not fill the depressions.  A simple pass over the VP 781 demagnetizer removes all residual magnetic fields.

 

The latest version of the drop dispensers incorporate an anti-jam feature that prevents the stir elements from jamming the dispenser mechanism.  Although they are slightly more expensive this mechanism will decrease loading time. All of the dispensers with a "-1" after the part number designate this new anti-jam version feature.

 

If you want to load magnetized Stir StiXs or magnetic stir bars you will need to use our Stir StiX dispensers.

 

Watch an instructional video of how to use our drop tumble stirrer dispensers


Download video (mpeg movie- 5MB)


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.
 

 

 


VP 711A-1S

     
 


Stir Bar Dispenser for VP 711, VP 711-1,VP 711D & VP 711D-1 Stir Bars, Improved Anti-Jam Version - 96 format

 
 
 

 
  Technical Documents:
    Care & Use of Tumble Stir Drop Dispenser
 


VP 711A-1SD

     
 


Stir Bar Dispenser for VP 711, VP 711-1,VP 711D & VP 711D-1 Stir Bars, Improved Anti-Jam Version for deep well microplates - 96 format

 

 
 

 
  Technical Documents:
    Care & Use of Tumble Stir Drop Dispenser
 



VP 712A-1S

     
 


Stir Bar Dispenser for VP 712 Stir Bars - 96 format

 
 
 

 
  Technical Documents:
    Care & Use of Tumble Stir Drop Dispenser
 



VP 716A

     
 


Stir Dowel Dispenser for VP 716 Stir Dowels - 96 format

 
 
 

 
  Technical Documents:
    Tumble Stirrer Drop Dispenser Manual
 

 

 

VP 720A & VP 720B

     
 


VP 720A
Stir Disc Dispenser for VP 719(F) or VP 720 Stir Discs - 24 well format

 

VP 720B
Stir Disc Dispenser for VP 719(F) or VP 720 Stir Discs - 48 well format
 

 
VP 720A

VP 720B

 
 

 
  Technical Documents:
    Tumble Stir Discs Drop Dispenser Manual
 


 
  Technical Documents:
    Autoclaveable Drop Disc Dispensers Manual
 

 



VP 721A-4S

     
 


**NEW**
Stir Disc Dispenser for VP 721F or VP 721F-1 Stir Discs - 96 well format, stainless steel plenum doesn't move plus trigger dispense mechanism.  Easier loading of discs. Replaces VP 721A,  VP 721A-2 and VP 721A-3

 
 
 

 
  Technical Documents:
    Tumble Stir Discs Drop Dispenser Manual
 

 



VP 721A-48S

     
 


**NEW**
Stir Disc Dispenser for VP 721F or VP 721F-1 Stir Discs - 48 well format, on 13 mm centers, stainless steel plenum with a trigger dispense mechanism.  Easier loading of discs.  Used to load glass vials in aluminum racks.  Bottom of dispenser registers to the vials so the VP 721F or VP 721F-1 Stir Discs fall into the vials.

 
 
 

 
  Technical Documents:
    Tumble Stir Discs Drop Dispenser Manual
 

 



VP 722A

     
 
Stir Disc Dispenser for VP 722 Stir Discs - 96 well format
 
 
 
 

 
  Technical Documents:
    Tumble Stir Discs Drop Dispenser Manual
 

 



VP 724A

     
 
Stir Disc Dispenser for VP 724 Stir Discs - 384 well format
 
VP 724A
 
 

 
  Technical Documents:
    Tumble Stir Discs Drop Dispenser Manual
 

 

VP 733-2A-1
     
 


VP 733-2A-1 Collar Adaptor for loading Stir discs or bars into individual glass or plastic Tubes arranged or nested in  blocks in 96 format. 

Several different companies make tube racks or blocks with a variety of shapes and heights that do not align to the bottom of our dispensers.  We have solved that problem by building a universal Collar Adaptor that aligns the rack to the bottom of the Stir Element Dispenser.

 
 
 


The VP 733-2A-1 will work with any of our 96 drop dispensers and with our 96 drop Stir StiX dispensers.

 
 
 
 


VP 725A-1-96SC - Registration Collar

     
 

Registration collar for Drop Dispensers for Tumble Stir Elements and Stir Stix. Aligns dispenser to a 96-vial Symyx rack (SBS footprint) with 8mm OD x 40mm height glass vials. Also aligns to similar aluminum rack available from            V&P VP 416ALB-96 for use in Heat Blocks.



Can also be used with Levitation Stir Ball Dispensers.

Not for use with Autoclaveable Tumble Stir Element Drop Dispensers or Sitr Stix Dispensers.
 
 
     
 
     
 
   

We also offer flip and drop Autoclaveable dispensers.   The flip dispenser are the most cost effective but they can only be used when it is possible to place the stir element in the well prior to adding liquid.  The autoclavable drop dispenser can be used to add stir elements to wells after they contain liquid.  They are the most expensive of the dispensers. 

 

To see Autoclaveable Drop/Tumble Stir Element Dispensers please follow this hyperlink.

 

To see Autoclaveable Drop Stir StiX Dispensers please follow this hyperlink

Watch an instructional video of how to use our drop tumble stirrer dispensers

 


  **NEW**
  Drop Tumble Stirrer Dispenser For Samarium Cobalt Magnetic Discs

 
 


VP 779-5A

     
 


The Newest Drop Dispenser (VP 779-5A) solves the problem of loading magnetized discs into microplates.  We have been working a long time and have tested many prototypes to solve the interaction of the magnets sticking together and not loading into the plenums.   The VP 779-5A is an engineering feat that makes loading the very strong VP 779-5 Samarium Cobalt discs easy to do.  First stacks of 12 VP 779-5 are loaded into 8 chambers in the loading jig.  Spring loaded plungers are used to force  the discs into the plenum as the jig slides across. 

 
 
 


The dispenser also has a retaining lid to keep the magnetic discs in place until they are dropped  into the microplate.  When all 8 chambers are loaded the spring loaded plungers place into the loading jig to push the discs into the plenum as the operator pushes the loading jig across the plenum as shown at the right.

 

 
   

As the loading jig advances across the plenum, discs are dropped into each hole, an attached retaining lid prevents the magnets from moving about.  This operation is done on top of a VP 770 magnetic block to facilitate the loading process and to pull the magnetic discs into the microplate when the loading plenum is pushed to the open position as demonstrated in the photo to the right.

 

Once dispensed, the magnetic discs are captured in the microplate with a plate lid and removed from the magnet. 

 

When removed from the VP 770 the magnetic discs are attracted to discs in neighboring wells.  When place on a V&P Tumble Stirrer they are attracted to the Stirrer's magnetic cylinder and begin to tumble independently.

 

Watch an instructional video of how to use the VP 779-5A

Download video (mpeg movie- 36MB)


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.

 

Stir Disc dispenser for VP 779-5 Samarium Cobalt discs

 VP 779-5A

 

 

 
 

 
  Technical Documents:
    Care & Use of VP 779-5A
 


  Custom Stir Element Dispensers

     
 


We also make custom dispensers.  The photo at the right demonstrates one of our VP 718 miniature stir bars inside a 0 gravity microscope chamber built for the National Aeronautical and Space Administration (NASA).  Because these stir bars are so small (76 microns in diameter and 1 mm long) they are very difficult to handle let alone place into the chambers.  We devised a system using a magnet to load the stir bars into loading depressions and then magnetically  lifted them from the depressions into the chamber ports and then into the middle of the chamber.

 
 
 


If you have unique stirring situation that you think is out of this world.  Call us we can handle it.  You see, our products are out in space.

 
 
     
 
 


The Magnetic Stir Bar Holder on the right contains ring magnets to keep the Stir bars in the middle of the Light Microscope Module Stir Chamber while it is being charged with liquid.  Just another example of the custom work we do.

 
 
         

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