You are looking for a pump that is not conventional as the majority of pumps and cylinders are around 2500 psi. as you obviously know. So it might be worth your while to look at putting two smaller conventional cylinders in tandem to achieve the 50 ton force. Just a thought. I work on molding presses that for the most part have gone away from one big cylinder to two smaller ones using more conventional pressure to achieve their rating. Those that use higher pressures, use a high volume pump to move the cylinder and then switch to a smaller high pressure pump to hold the cylinder at the higher pressures once full movement is achieved. Most of these are rated at 3000 psi. working pressure although they can go higher, but that means a shorter life.
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Today's Featured Article - George's Fordson Major - by Anthony West (UK). This is a bit of a technical info to add on to the article about George's Major in the "A Towny Goes Plowing" article. George bought his Major from a an implement sale about 18 years ago for £200.00. There is no known history regarding its origins or what service it had done, but the following work was undertaken by Harold alone to bring it up to show standard. From the engine number, it was found that the major was produced late 19
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