Hydraulic puller packs?

I know this is far removed from models, but.....
I've got fed up with struggling to pull stuff apart with kit which is only just, or not quite, up to the job. The time/money wasted would be
better spent on some bigger kit, but where to get it from? I've got the standard Sykes-Pickavant 'hydraulic' pullers, with a ram rated at something like 8 tons IIRC, plus a slightly bigger version but I'd guess that really I'm looking for something around the 30 ton mark.
What I really need is a short portable ram, preferably hollow (or it might have to be one solid & one hollow) , and manual hydraulic power pack, plus legs etc. Web searches don't seem to come up with much. I know they're likely to be horribly expensive, but it's hard to make a judgement until I can find a source or two. The ideal would be some serviceable secondhand kit, as it's hardly going to be in everyday use. The local hire places don't seem to carry anything of useful size, that would be more sensible than buying if they did.
Any bright ideas?
Thanks Tim
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Once you get past the standard hydraulic pullers, you're into specialist territory, with the prices to match. Plus once you get past the force of a standard hydraulic puller, you'll also be needing different types of pullers, as I've seen puller legs bent using standard hydraulic pullers.
Cost will be high. I know at work we priced a kit for doing front stub pins on Renault Midlum lorries, and the cost was well into 4 figures. The ram alone was into 4 figures (very compact, and high pressure - think it was 10tonne force out of something measuring 6" tall by a couple inch wide), and that was just the small kit.
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Tim Leech wrote:

> Several scenarios. If you have the Pickavant hydraulic setup, you your can buy a standard Enerpac 8 ton ram that will screw in.
Or you can make a hydraulic ram with a 2 inch bore and a 1" spear that a has the standard Pickavant thread. That'll give you around 15 ton. The beauty of these is that you can make them with a long stroke that negates the need to make continual adjustments. Requires the use of a hand pump. A good hydraulic jack can be converted to be used as a hand pump. Disadvantage is only single speed. Over the years I would have made a couple of dozen of these. If I wasn't recovering from a badly bruised leg now, I should be making another.
Or if you want cylinders make your own, bored either out of the solid like a lot of commercial units or fabricated out of heavy wall tube and bored to suit. A displacement ram sealed by an oring will take 10,000 psi as long as the radial clearance is kept to .002" A backup washer is preferred but under the minimal usage can be dispensed with. Ground bar or hard chrome bar for the spear. Hollow spear rams require a bit more sophistication in design with a central sealing tube.
Or I happen to have a 30 ton hollow spear ram in the shed, along with a 50 ton stubby ram...
All this pales into insignificance alongside all the !@##%$%^&& pullers I'm been making for this Roller I'm playing with.:-)
Tom
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wrote:

Thanks Tom and others for suggestions. I've done the job that prompted the post, by improvised methods again, but it's something that I really do need to get sorted out. I've just got myself a hand pump off ebay, that's the easy bit done <g>

I think the postage on that might rule it out <G>

I'm sure you enjoy it really!
Cheers Tim
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On Thu, 03 May 2007 09:54:13 +0100, Tim Leech

Try 'lifting gear hire' or 'fairview lifting gear' in google. They will both send you a catalogue that might assist in identifying what you want. Slight connection in that we use both of these at work.
Go to www.tangye.co.uk for prices or try www.allspeeds.co.uk
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