Applied Product Catalog 2016 2017 Page i38 Technical Reference

i38 Call your local Applied service center to order at 1-866-351-3464 or visit us online at Applied.com Step One: The table below shows a 3" diameter cylinder will develop 21,204 lbs. of force with 3,000 psi pressure. Step Two: A line has been drawn on the chart from 3" diameter through 28" stroke. Step Three: By continuing this line, it intersects 200 cubic inch displacement. Step Four: Another line drawn from 200 cubic inches through 7.5 seconds intersects 7 GPM. Your Answer: Using this example, the chart and table show that your components should be a 3" diameter 3,000 psi cylinder and a hydraulic power unit with approximately 7 GPM and 3,000 psi rating. Theoretical horsepower for these values would be 12.25 hp. However, since most applications usually require maximum GPM and pressure for only a very short portion of each cycle, the electric motor of the hydraulic power unit will usually be considerably smaller (one half or less). Cylinder Bore Cylinder push in pounds @ 1000 psi @ 2000 psi @ 3000 psi 2 3141 6282 9423 2 4908 9816 14724 3 7068 14136 21204 4 12566 25132 37698 5 19635 39270 58905 6 28274 56548 84822 7 38465 76930 115395 How to Select a Hydraulic Cylinder and Power Unit Selection of the proper components for a hydraulic system is quite simple when you use the accompanying table and chart. Here is an example to illustrate their use. Assume your requirements are: 20,000 lbs. of force, 28" stroke, and 7.5 seconds for full cylinder extension. 8 1 3.5 7 20 .1 100 50 25 18 10 5 1.5 .6 .25 .18 .2 .4 .6 1 2 4 6 10 20 40 60 100 200 400 30 50 70 100 200 250 300 500 700 1000 2000 2 4 6 10 20 40 0 60 100 6 5 4 3 2 1/2 2 1 1/2 Cylinder Bore (in inches) Stroke (in inches) Displacement (in cubic inches) GPM Time (in seconds) Cylinders

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