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Looking for Hydraulic Hand Pump - Screw type

Hello,
If there's a more appropriate newsgroup to ask this question,
I'd appreciate knowing about it.
That said, I'm looking for a screw-type hydraulic hand pump similar
to:
The Enerpac SP-621 see:
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The Destaco pump on the last page of this .pdf:
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The Destaco is $367 while the Enerpac is higher.
My requirement for this pump is that I can attach a hyd. hose to it to
power a hyd. cylinder, and that it's mountable. I've looked
everywhere...Googled for hours, McMaster, Enco, Grainger, MSC, eBay,
etc.
Nearly every hand pump has the lever/car jack type of pumping action,
not a rotating screw.
Some hydraulic bearing pullers look very similar to what I need, but
none seem to have a hole to attach a hose. Surely there's something
much cheaper out there.
Can anyone offer me any ideas or leads?
Thanks very much if you got this far,
Paul
Reply to
chisel
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Note that the screw type pump -- at least that shown on the Enerpac page -- only goes up to 3,000 PSI, while the lever style pumps can go up to 10,000 PSI. Is 3,000 PSI sufficient for your needs?
If it is -- you have found the Enerpac listing. You can check for dealers in your area. MSC sells Enerpac products, and even if it is not in the catalog, phone them and ask. They will probably get it for you.
Or are you looking for a used one to save money? Note that most people seem to buy the lever style for the extra PSI rating -- so this may (and probably will) affect what you will find used.
Good Luck, DoN.
Reply to
DoN. Nichols
yes, I realize that.
yes, 3,000 psi is sufficient, but no less.
A regular Enerpac dealer cannot get it. It is a special line and the pumps are made to order...2-4 wks. for delivery, plus they list at ~ $450.
Used is fine, but I'm looking for this type/style of pump, not necessarily the Enerpac or Destaco one. Surely there are other mfrs. in the U.S., or a similar pump made overseas, for less than $350.
The lever type pumps start at $200, so nearly double that for a screw pump is pretty steep IMHO.
Paul
Reply to
chisel
Jergens and Carr-Lane both make this type of pump, and maybe Stilson. It's worth checking, but I tend to doubt they'll be a lot cheaper.
Huh, Carr-Lane has prices on line.
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R900SP ... $361 R901SP ... $418
Both in stock.
Here's Jergens, though it may be the same stuff as Destaco.
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Ned Simmons
Reply to
Ned Simmons
Hi Ned,
Thanks for that info. The Jergens search engine leaves much to be desired. Entering manual, pump, hand, screw all turned up nothing, but I finally found the pump. You are right, it's identical to the Destaco. Oh well, thanks anyway! Best,
Paul
Reply to
chisel
Of course you did. That was *your* text which I had quoted which you just replied to. :-)
O.K.
[ ... ]
I think that in part, the screw types have to have less leakage, since they are not multiple stroke. This (plus the larger piston and seals) probably accounts for at least some of the price.
If money really means that much to you, you could try making your own. If nothing else, this would probably appreciate why they cost so much. :-)
Good Luck, DoN.
Reply to
DoN. Nichols
Less leakage is what I need...I hadn't thought about that vs. the lever types. Thank you for enlightening me.
I can afford the $350 or whatever, but I thought I could find one much cheaper. Guess not.
Best,
Paul
Reply to
chisel
What volume of fluid do you need? Bore and stroke of you cylinder? Is the physical size of the pump critical? I'm thinking a second cylinder with an acme rod and handwheel as the pump. If you don't need much volume, you could use the cylinder from a cheapy bottle jack and use the screw extension as the motive force. Within the proper framework, of course.
Reply to
Andy Asberry
On Tue, 15 Jun 2004 22:51:36 GMT, chisel calmly ranted:
Try
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, though I don't know if it'll be cheaper.
How about mounting an el-cheapo hydraulic cylinder from
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in a frame and using an acme threaded rod to move the shaft? One cylinder acts directly on the other from hydraulics via rotary motion.
It'll cost you. ;) You'll have to send a picture of what you end up with to the dropbox.
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- Every day above ground is a Good Day(tm). -----------
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Reply to
Larry Jaques
Hi Larry,
Not sure exactly what you mean...I need to have a gauge somewhere in there so I can see how many psi I'm exerting.
Would this be possible in your setup? I have a cylinder I could use and I have the acme rod...
No problem, but it may be a while!
Paul
Reply to
chisel
On Thu, 17 Jun 2004 23:26:04 GMT, chisel calmly ranted:
Sure, use 2 shorter lines for the main hydraulic line and tee off that. What size and what application do you have?
BTW, the price for a 4 ton porta power from HF this month is $69.99, including jack-style power cylinder. For $300, you could buy one of those, add a gauge, and convert it to air-over-hydraulic action.
There ya go!
So send a drawing in the interim, whatever you settle on.
- Every day above ground is a Good Day(tm). -----------
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Website Application Programming
Reply to
Larry Jaques

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