1986 - Volume #10, Issue #3, Page #10[ Sample Stories From This Issue | List of All Stories In This Issue | Print this story | Read this issue]
50-Ton Hydraulic Press
He used an old truck hoist cylinder with a retracting force of over 50,000 lbs. at 2,000 lbs. per sq. in. of hydraulic oil. The pump is an old Char Lynn pto pump with pump and valves contained inside the tank. A 1 1/2 hp. electric motor with 20 to 1 gear reduction provides the power.
"The placement of the cylinder and tie-rod (on the opposite side of press) is the key to saving on structural material. The 50,000-lb. strength of the cylinder is doubled by the top leverage which results in approximately 50 tons of force. One nice feature of the press is that the pressing shaft has 10 in. of travel, which is uncommon in most presses of this type," notes Sibley.
He bought new structural steel for about $400 and salvaged the rest of the materials. If a similar pto pump is not available, Sibley says small 2-stage pumps are available for around $100 that couple directly to an electric motor.
Contact: FARM SHOW Followup, Dwight Sibley, NSR 161, Nashua, Mont. 59248 (ph 406 785-2191).
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