hydraulic pumps

[york]

You would be much better off in the long run, using the "stack valves" cost more but much better,you will love them...albert

[ladylake]

I think e decided on a couple of these. http://www.surpluscenter.com/item.asp?item=9-8283&catname=hydraulic

Looks like good valves to me with the open center, you can add more as needed.  Also you can separate the valves some for easy operation the ones on my B20 are close toegther and it easy to grab the wrong one.   Steve

[hackberry jake]

I should change the subject of this thread to "hydraulics for dummies". What about cylinders? Say I needed a 2" cylinder with a 12" throw. There's this one http://www.surpluscenter.com/item.asp?item=9-1665-12&catname=hydraulic for $149 and this one http://www.surpluscenter.com/item.asp?item=9-7940-12&catname=hydraulic for $69. Thats $80 difference. It it a "you get what you pay for" type thing?

[Josef]

Yeah, pretty much, the more expensive one is rated at 3000psi, has a 3 year warranty, and weighs 27 lbs, the less expensive one is rated at 2500 psi, doesn't list a warranty and weighs 23 lbs. Oh, and they don't have any of the less expensive ones, shows 0 in inventory so it would be backordered.

Joe

[Indiana Robinson]

If I were building a project with hydraulic needs I would check out salvage self propelled combines. All of the ones I have owned used high capacity belt driven pumps. They typically have valve banks of high quality valves and a number of high quality cylinders. That header out front may weigh several tons especially corn heads. The hydraulic systems have to be good and seldom wear as much as the rest of the combine. I have scrapped several that still had excellent hydraulic systems.
For the circle mill guys... Those old combine engines make very good power units and many have multiple Vee belt drive.
There are combine salvage yards scattered around the country especially in grain producing areas.


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[Al_Smith]

Fact being I'm about 20 miles away from one of the largest combine salvage yards in the midwest if not the whole USA .Spallinger combine near Bluffton Ohio .http://www.spallingercombine.com/ .Dave the guy that started it used to work for Anderson tractor another salvage yard .Fact I've met and done business with both of them .


Old combines are a treasure trove to a tinker and puttser .Just all kinds of goodies .I had an Oliver model HG crawler  that I built the blade lift from combine lift cylinders which cost me next to nothing .It was a long time ago but maybe 25 a cylinder and 20 for the valve .

Pumps you can use anything even a power steering pump .It won't be real fast but it will or could be made to work .Keep in mind you have to be a journeyman junk yard dog to get this stuff to work though . ;)

[reride82]

Welcome to the forum Indiana Robinson! You're right about combines being the perfect donor for circle mills. Thats how I did mine  :D Everything from the engine, hydraulics, sawdust removal, and safety screens came from junked combines. I just need to find a small hydraulic motor to drive the sawdust chain  And maybe a hydraulic log turner to make my life that much easier  ;)
Levi