1994 - Volume #18, Issue #5, Page #07
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Pull/Push Post Driver Makes Fencing Simple, Economical
His hydraulic driver can strong arm a 6 1/2-ft. long steel post 30 in. into the ground in 8 to 10 seconds. That's not necessarily faster than commercial models, admits Spiegelberg, Hortonville, Wisc., but his "Pull & Push" post driver costs a whole lot less.
"You can build one of these for $400 or $500," says Spiegelberg, who's hoping to find a manufacturer for his invention.
Spiegelberg's post driver is made out of a 4 by 6-in. steel I-beam, 6 1/2 ft. long. Weighing about 120 lbs., Spiegelberg figures the I-beam delivers at least 4,000-5,000 psi to posts.
The plunger is made out of 3/4- in. steel welded to 1/2-in. plate on the sides of the I-beam. A 2-in. diameter piece of pipe holds the posts in place. The plunger operates with a wood splitter valve connected to the driver's hydraulic cylinder with 30-in. stroke. (Cylinders with longer stroke could be used for posts larger than 6 1/2 ft., Spiegelberg notes.)
The unit mounts on the tractor drawbar and 3-pt. top link about 6 in. out from the tractor's rear frame.
Spiegelberg's "Pull & Push" driver features a chain hook on the plunger for taking out fence posts.
Contact: FARM SHOW Followup, Del Spiegelberg, N2788 Cty. Rd. T, Hortonville, Wis. 54944 (ph 414 779 6963).
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