General Category > Equipment and Software

Stir plate wont mix a 5l. flask

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dbarber:

--- Quote from: hopfenundmalz on July 17, 2012, 05:42:14 PM ---
--- Quote from: tygo on July 17, 2012, 05:23:01 PM ---My stirplates are from http://www.stirstarters.com/.  1" stir bars handle a 4.5L starter in a 5L flash just fine.

--- End quote ---
These also use 2 small, but powerfull Neodynium magnets. Yeah, it can do a 5L starter. I know this works!

--- End quote ---

I use the same stirplate, but have a hard time getting a dimple in a 4 L starter without throwing the 1" stir bar.

tygo:

--- Quote from: dbarber on July 18, 2012, 05:45:39 AM ---
I use the same stirplate, but have a hard time getting a dimple in a 4 L starter without throwing the 1" stir bar.

--- End quote ---

I think it depends on the flasks you have.  The 5L ones I have luckily have a very flat bottom and I can usually take them almost all the way up to the highest speed without throwing them.

My 2L flask, on the other hand, has a very slight convex bottom and will easily throw the stir bar at anything over the very lowest speed.

Pi:
I just got a stirstarter and this thing ROCKS. I can get a nice vortex using a 1" bar, but the larger bar wont work very well.
+1 to stirstarters.com

ccfoo242:
I have one from stirstarters and to use it with a 5L flask I have to prop up the flask so the bar is on the side and not the center, because of the hump in the middle of the flask. I just use the stir bar that came with it.

positiverpr:
if it wont get enough traction on the bar you can try taking the top off of the stirplate(if it has one) to get the magnet a little closer to the stir bar.

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