Russ says concrete is 150 lbs per cu ft. You want 25 lbs so that is 1/6 of a cu ft.
Now we need to figure the volume of your pipe per inch. Radius x radius x height x pie 1.5 x 1.5 x 1 x 3.14 = 7.065 So you have 7.065 cu in per inch of pipe.
1728 cu inches in a cubic foot and you need 1/6 1728 / 6 = 288 cu inches
So you need 288 cu inches to make 25 lbs and your pipe holds 7.065 cu inches per inch. 288 / 7.065 = 40.764 So your pipe needs to be 40.764 inches long or just over 40 3/4 inches.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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