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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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highest psi creatable by hand-crank mechanism?
What are the commercially available mechanisms/devices that would allow
creation of very high levels of hydraulic pressure by human movement? Bicycle type of mechanism is preferred. I'm already familiar with the Enerpac product line. Anything goes to higher levels? |
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wrote in message
oups.com... | What are the commercially available mechanisms/devices that would allow | creation of very high levels of hydraulic pressure by human movement? | Bicycle type of mechanism is preferred. | | I'm already familiar with the Enerpac product line. Anything goes to | higher levels? Since pressure and flow are inversely proportional with the same amount of work applied, you can get several thousand psi but the flow will be extremely small, or lots of flow with minimal pressure. There are hydraulic booster pumps that allow existing hydraulic systems to pump even higher pressures in separate systems, like an air operated hydraulic pump. Of course flow still continues to decrease as pressure increases. |
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wrote in message oups.com... What are the commercially available mechanisms/devices that would allow creation of very high levels of hydraulic pressure by human movement? Bicycle type of mechanism is preferred. I'm already familiar with the Enerpac product line. Anything goes to higher levels? I'm not familiar with Enerpac, what pressure do they go to ? Two stage hydraulic pumps are fairly common, most are set to change over from the low pressure stage at about 150 PSI, and have their relief valve set for a maximum of around 3000 PSI from the high pressure second stage... What pressure do you want ? -- Jonathan Barnes's theorem; for every foolproof device there is a fool greater than the proof. To reply remove AT |
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Dear Jonathan Barnes:
"Jonathan Barnes" wrote in message ... wrote in message oups.com... What are the commercially available mechanisms/devices that would allow creation of very high levels of hydraulic pressure by human movement? Bicycle type of mechanism is preferred. I'm already familiar with the Enerpac product line. Anything goes to higher levels? I'm not familiar with Enerpac, what pressure do they go to ? They have products that go to 10,000 psi. David A. Smith |
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wrote:
What are the commercially available mechanisms/devices that would allow creation of very high levels of hydraulic pressure by human movement? Bicycle type of mechanism is preferred. I'm already familiar with the Enerpac product line. Anything goes to higher levels? http://www.highpressure.com/pumping....=hp§ion=10 |
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