Tank on the left of the picture is the open top type, and the right is the closed type one.
Same: both are have the jacketed coolant layer, and insulation layer.
Difference: the open type can not use as the pressure vessel, while the closed one is ok.
When matched with chiller, the open type can be cooled through the jacketed coolant interlayer, the closed type is not only the jacketed coolant layer, also the inner condenser coil, form the dual refrigeration. The key for the closed type that can better improve refrigeration rate, is it enable the chiller to control the temperature more accurately, and reduce the temperature difference.
For example: The 200/80 chiller work with a open type tank, when the chiller shows that the temperature reach -60°C, solvent(ethanol) inside the tank is around -35–40°C, need more time for heat exchange. While the temperature difference with a 200L closed tank is usually within 5 degrees Celsius, take short time.
Of course, the appearance of the open type may seems more convenient to use.
If necessary, you can customize it according to your needs! ! !
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but do you have merry go round?
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Can the open top vessel withstand the pressure of a human pushing on it while they are trapped inside?
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remind me: exactly HOW do I use this for solventless extraction?
Oh, I don’t…you’re just posting SPAM any old place…
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@cbddistiller Please keep posts like this in the equipment for sale sub category of the classifieds section
do you make open bottom vessels with closed top? im looking for something easier to empty.
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Gold.
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Diamonds…
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Thats why the bottom dump tank right? So you can open the bottom and grab the giant puck right out.
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in a nutsche(ll) 
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And they’ll say you can run it upside down and empty from the top. My bottom drain that i still pulls pucks out of since it propane
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looks like ugly pizza is it a dry cake?
everyones making fun of the guy from china. I have a question. is the open top unit used for bho? Ive never seen that.
I pulled a 7# cake out with one hand. That’s pure propane.
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