Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 75 users online :: 5 registered, 0 hidden and 70 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Buying a HP Pump

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
Sponsored 
  • Author
    Message

Buying a HP Pump

Unread postAuthor: MrCrowley » Tue May 13, 2008 7:00 pm

Well I think it's time I bought a High pressure pump, I would make one, but it'd cost more and be less safe then if I bought one.

I have 2 choices:

260psi, floor pump - $47
http://www.torpedo7.co.nz/products/GYPUFW752

Or a 300psi shock pump - $40
http://www.torpedo7.co.nz/products/GYPUSNN01

Do you think I should sacrifice 40psi for volume?

I probably could take the floor pump up to 300psi anyway...any thoughts?


Thanks.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: rp181 » Tue May 13, 2008 7:11 pm

I saw the floor pump, you could probably take it to 300 while jumping on it, i do that with mine, and it stilll hasent broken, the bar is plastic.

plus, its 7$ more expensive, therefore better :wink:
  • 0

User avatar
rp181
Brigadier General
Brigadier General
 
Posts: 1090
Joined: Thu Dec 13, 2007 8:47 pm
Reputation: 0

Unread postAuthor: Lentamentalisk » Tue May 13, 2008 7:23 pm

Shock pumps are incredibly dificult to pump, as you get no leverage what so ever. To make up for this they have you pump a tiny volume, so it takes ages to get any pressure at all (i pumped my 2'x1.5" chamber with 200+ strokes and it didn't even show up on the gauge) Also, with such a small flow you get tired really quickly.
In short, go for the floor pump, it is a million times better, and you can most likely go higher with it by jumping.The silencer...is crap.

They're NOT supposed to have holes on the outer shell. That just kills the whole concept
  • 0

Do not look back, and grieve over the past, for it is gone;
Do not be troubled about the future, for it has not yet come;
Live life in the present, and make it so beautiful that it will be worth remembering.
User avatar
Lentamentalisk
Brigadier General
Brigadier General
 
Posts: 1202
Joined: Tue Aug 07, 2007 5:27 pm
Location: Berkeley C.A.
Reputation: 0

Unread postAuthor: MrCrowley » Tue May 13, 2008 7:52 pm

I know JSR gets away with a shock pump, but most of his projects are quite small.

Floor pump it is :)
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: ammosmoke » Tue May 13, 2008 9:15 pm

Well, I do know that you can get a refridgerator coolant pump to work for you. Costs hardly anything at your local junkyard, and supposedly gets to around 400psi. Its extremely quiet too.
  • 0

<img>http://www.speedtest.net/result/309559995.png</img>
User avatar
ammosmoke
Brigadier General
Brigadier General
 
Posts: 1011
Joined: Wed Sep 27, 2006 10:57 am
Reputation: 0

Unread postAuthor: MrCrowley » Tue May 13, 2008 9:21 pm

I'm struggling to find one, people sell them for like $100 and the ones at the junkyard aren't allowed to be removed and are usually broken. Remember the compressor is usually the first thing to break.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: Carlman » Tue May 13, 2008 10:10 pm

I bought that exact same pump from torpedo 7 a couple of weeks back! :D (floor pump)

i have had it up to 320psi dont want to go higher than that, but its great aye 8)

and i got mine shipped from NZ so it will be cheaper for you
  • 0

Image
Aussie spudders unite!!
User avatar
Carlman
Major General
Major General
 
Posts: 1618
Joined: Sat Nov 24, 2007 1:18 am
Location: Western Australia
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: MrCrowley » Tue May 13, 2008 10:23 pm

Shipping was only $7.50 :)

Great site, can't believe it's Kiwi :D

Good news that it sounds like it's lasting and works well. Thanks.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: D_Hall » Tue May 13, 2008 10:26 pm

At the office, we've got a couple of these....

Image

...I highly recommend them. They work GREAT! 480 cfm to 3000 psi. What's not to like?

:lol:


Oh, you meant for home use?
  • 0

Last edited by D_Hall on Tue May 13, 2008 10:37 pm, edited 1 time in total.
Simulation geek (GGDT / HGDT) and designer of Vera.
User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: MrCrowley » Tue May 13, 2008 10:27 pm

Who said that can't be used at home, how big and how much? :D
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: ammosmoke » Tue May 13, 2008 10:29 pm

LOL, what does that cost, 20 grand?

EDIT: @Mr.Crowley: Well, it seems that you have already found a deal that you like, but I saw some on ebay for $20. Don't know if there is any suppliers near you. About the pumps, sometimes people throw the fridge or freezer away bc the coolant is too low and they think its broken. That is how the guy in a tutorial I read got one. But I don't remember where it was from. :(
  • 0

<img>http://www.speedtest.net/result/309559995.png</img>
User avatar
ammosmoke
Brigadier General
Brigadier General
 
Posts: 1011
Joined: Wed Sep 27, 2006 10:57 am
Reputation: 0

Unread postAuthor: D_Hall » Tue May 13, 2008 10:31 pm

ammosmoke wrote:LOL, what does that cost, 20 grand?


Try 400 grand. Each.


edit: and to answer the question of how big.... See the building to the north of the road on this page? That building holds 2 of 'em. That's the ONLY thing(s) in the buildings. And it's cramped in there.
  • 0

Simulation geek (GGDT / HGDT) and designer of Vera.
User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1759
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 6

Unread postAuthor: ammosmoke » Tue May 13, 2008 10:46 pm

Oh... Jeez. You made it sound like a high psi campbell haussfield trailer or something.
  • 0

<img>http://www.speedtest.net/result/309559995.png</img>
User avatar
ammosmoke
Brigadier General
Brigadier General
 
Posts: 1011
Joined: Wed Sep 27, 2006 10:57 am
Reputation: 0

Unread postAuthor: Lentamentalisk » Tue May 13, 2008 10:50 pm

OMFG! wow, I want your job... you should export psi...
  • 0

Do not look back, and grieve over the past, for it is gone;
Do not be troubled about the future, for it has not yet come;
Live life in the present, and make it so beautiful that it will be worth remembering.
User avatar
Lentamentalisk
Brigadier General
Brigadier General
 
Posts: 1202
Joined: Tue Aug 07, 2007 5:27 pm
Location: Berkeley C.A.
Reputation: 0

Unread postAuthor: MrCrowley » Tue May 13, 2008 10:55 pm

Lentamentalisk wrote:OMFG! wow, I want your job... you should export psi...

Haha now that would be awesome, an underground pipe system to all the spudders on the forum, supplied by D_Hall. We just open the valve and 'tap' into the supply of 3000psi :D
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Next

Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'