Need advice on vacuum / suction experiment

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Blackie
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TL;DR
Vacuum pump help
Summary: Vacuum pump help

I need advice on what type of vacuum pump would create max negative pressure in a very small area ( a space no larger than your pinky finger I guess) ? Maybe some kinda high suction low cfm pump? I don't know enough about vacuum pumps to know which type to use for my application. And advice would be greatly appreciated.
 
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Peristaltic pump (roller pump). Cheap diaphragm pumps also works fine for low airflow, high suction pressure applications.
P.S. Never apply suction port on a body parts. Injury is guaranteed if applied.
 
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Ok, I've not researched that particular pump... I'm trying to achieve an insine amount of vacuum. Kinda like if you poked a small hole in a space ship. The amount of force focused near the hole... will a roller pump achieve that kinda pressure in a small area? a lot of the roller pumps I've seen look like they are for medical applications... and more advice would be greatly appreciated
 
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Blackie said:
insine
Is that a typo?

Also, can you say what the application is? That will help us to make the best suggestions for you. :smile:
 
How about a syringe?
Blackie said:
I'm trying to achieve an insine amount of vacuum.
The maximum amount of vacuum in air is 14.7psi, and it isn't difficult to get pretty close to it.
 
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This little sucker (pun intended) just pulled 27 inches of mercury with my finger stopping the tubing. I think it would do better if I shortened the tubing. Trade name is MityVac. Harbor Freight has something similar: https://www.harborfreight.com/brake-bleeder-and-vacuum-pump-kit-63391.html.

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I used that same vacuum pump with an Edmunds Bell jar for a number of experiments. Plus, I used it to bleed my sportbike brakes for years. A great investment! :smile:
 
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As long as we're at harbor freight... They also sell an eductor-based 'vacuum pump' - I think they intend it for HVAC system evacuation. Feed it compressed air, and it creates a vacuum. Cheap, simple, and continuous (if you have compressed air).