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Author: Subject: Corning Hot Plate/Stirrers...
SweetNLow
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Corning Hot Plate/Stirrers...

I'm trying to figure out the size of the support rod mount on the following models.

Corning PC-320 Hot Plate/Stirrer
Corning PC-520 Hot Plate/Stirrer

I've been searching around the web and although I've found many web sites that carry them, they often neglect to include details on the item specifications.

Thanks
Z-Row
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I'm not certain about the PC-520 but my PC-320 uses a 1/2" support rod with a 5/16" coarse threaded end. The threaded end is about 1/2" long. The longest ones I found online were 18" (and cost over $25) so I went to the hardware store and bought a 36" long 1/2" rod then brought it to a local machine shop and had them lathe the end down to 5/16" and thread it. Total cost <$10.
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I've been having trouble with this since I bought my Corning PC-520 off of Ebay. It didn't come with a support rod attachment and so I went to town to find myself a half-inch thick rod, so that I could have it machined to the specification that Z-Row had. I couldn't find anything, despite looking all over.

The closest that I could find was threaded 5/16 '' rod. After taking it home I found that it didn't fit the thread on the stand.

Evidently the PC-520 uses a larger, thicker thread on it than the other models.

So at least now anyone who attempts this on a 520 knows that 5/16 '' is -not- what you're looking for. It's a larger thread, I'm still not sure about the size though. I'm still trying to figure out how to replace it.

j_sum1

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Is it perhaps a metric size?
This is where I would get out my jar of bolts and gently see which ones fit. I would then take my bolt (or even better a nut that fits) down to the hardware store to find something that works.
DJF90
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The UK plates that I've used take a M10 coarse thread. I had a support rod custom made at a local engineering firm for 20 quid, as I wanted one a bit longer (1000mm) than the original (600mm) and was,'t willing to pay what IKA were asking.

This is the case for Heidolph and IKA - I'm not sure about Corning..

[Edited on 18-2-2015 by DJF90]
Zombie
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 Quote: Originally posted by radiance88 I've been having trouble with this since I bought my Corning PC-520 off of Ebay. It didn't come with a support rod attachment and so I went to town to find myself a half-inch thick rod, so that I could have it machined to the specification that Z-Row had. I couldn't find anything, despite looking all over. The closest that I could find was threaded 5/16 '' rod. After taking it home I found that it didn't fit the thread on the stand. Evidently the PC-520 uses a larger, thicker thread on it than the other models. So at least now anyone who attempts this on a 520 knows that 5/16 '' is -not- what you're looking for. It's a larger thread, I'm still not sure about the size though. I'm still trying to figure out how to replace it. [Edited on 18-2-2015 by radiance88]

I would suggest buying a couple bolts of varying sizes to get the correct fit.

At least it's a place to start.

They tried to have me "put to sleep" so I came back to return the favor.
Zom.
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i use a Corning PC-420 that I bought used and I was in a similar situation. The IKA prices were ridiculous. I ended up going to Lowes and buying an 18" piece of all thread and a couple of nuts and a lock washer, for about \$7. It works well. I think the rod was 5/16" or so, I cant remember. I cant believe we dont use metric yet, how embarrassing!

 Sciencemadness Discussion Board » Fundamentals » Reagents and Apparatus Acquisition » Corning Hot Plate/Stirrers... Select A Forum Fundamentals   » Chemistry in General   » Organic Chemistry   » Reagents and Apparatus Acquisition   » Beginnings   » Responsible Practices   » Miscellaneous   » The Wiki Special topics   » Technochemistry   » Energetic Materials   » Biochemistry   » Radiochemistry   » Computational Models and Techniques   » Prepublication Non-chemistry   » Forum Matters   » Legal and Societal Issues