human powered air compressor?

[ElPanda]

been tossing the idea in my head around for a while, it would be nice to have a human powered hydraulic compressor strictly for filling my hpa tank at home so that I can tech my markers without having to worry about running out of air

it would use leverage and hydraulic multiplication of force to compress the air, I got the idea when I was using a pallet jack at work, I was like if I can pick up this heavy stuff, surely with refinement I could use that same energy to compress air into a tank...



even if it only went to 1500 or 2000 psi it would still be enough to mess around with, and if you run out you could just fill it again

Im sure at some point the lever would become immovable due to the pressure inside, so you could just simply make the handle telescoping so that you have more and more leverage to pull with.

let me know what you guys think, I think its feasable

[Spider-TW]

There have been some discussions about manual compressors.

Keep in mind there is a huge amount of energy in 1000psi air. No matter what kind of setup you use, you will be providing that energy, to the point that you will have to consider your meals.

[doc_Zox]

someone should do the math on the sealevel volume of all the air in a HPA tank

I would think theres a few hefty bags of air to run though the hand pumps chamber to get to 3000 psi


there are hand pumps for some of the HPA reservoir air rifles:
http://www.pyramydair.com/cgi-bin/ac...cid=1053123231

[ElPanda]

someone should do the math on the sealevel volume of all the air in a HPA tank

I would think theres a few hefty bags of air to run though the hand pumps chamber to get to 3000 psi


there are hand pumps for some of the HPA reservoir air rifles:
http://www.pyramydair.com/cgi-bin/ac...cid=1053123231

I hope you know Im going to buy one of those pumps now hahaha

one of them already has the foster QD as well

wow thanks for the link

[Hilltop Customs]

someone should do the math on the sealevel volume of all the air in a HPA tank

I would think theres a few hefty bags of air to run though the hand pumps chamber to get to 3000 psi


there are hand pumps for some of the HPA reservoir air rifles:
http://www.pyramydair.com/cgi-bin/ac...cid=1053123231

Boyle's law says the relationship between pressure and volume is linear:

68ci * 3000psi = 13877 ci * 14.7psi(sea level)

13877ci / 12^3(ci/cf) = 8 cubic feet of air

wonder if it would be possible to use a shop compressor as an input to one of those hand pumps. That would massively cut down on the number of strokes.....cutting down fill time and also reducing wear on the hand pump.

[Ghola]

Here's another one for you

http://www.airforceairguns.com/handpump.html

[jade_monkey07]

thats not a bad idea, i wonder how long it takes to get a 86 45 filled? bet youd burn alot of calories:P

[ElPanda]

any body have a good recommendation or advice as to a moisture trap/filter

I dont want to get water in my tank

Ive filled to 2 k psi and when I removed the QD I noticed a small ammount of condensation on my fill nipple, I was like shucks, no biggy as everything still works fine, I just wont fill any more until I have a working moisture trap/filter hooked up.

[gunangel]

sorry to barge in but may i ask what size tank were you filling and how long did it take?

[ElPanda]

68 took about 30 min. for 2k psi

smaller tank will take less time

Im gonna take the pump to a local industrial compressor store and have them take a look at getting a water trap in the line somewhere.

[Spider-TW]

I thought those came with a trap built in (?).

How's the pumping (gets pretty hard at 2k?)

[gunangel]

thanks that's pretty much what i was hoping for. might have to go out and purchase one

[michbich]

Anyone else want to mod a bike to power the pump? Don't work hard, work smart!

[ElPanda]

I thought those came with a trap built in (?).

How's the pumping (gets pretty hard at 2k?)

the "trap" it comes with is just the relief valve thats built in under the gague so you can disconnect it with no pressure

it just kind of collects some condensation then spits it out

keep in mind this pump is meant for much MUCH smaller air rifle chambers that fill much faster than a 68 does, so Im sure for air rifle use this thing works great

the pumping is not difficult at all, just gets very repetitive so you do start to feel the burn after a while. You deffinetly burn some calories but thats never a bad thing.