calculating Cylinder force at an angles and such

**frijoli** · 12-12-2009, 12:51 PM

I know some like to build machines with cylinders, so here is how you figure out what cylinder you need if you are building, say a crane.

This is a training PDF I use for teaching new engineering students in fluid power.

http://womack-machine.com/pdf/rb365/10p365-8.pdf

If you want any assistance, just ask!

Clay

**jonrya91** · 12-13-2009, 08:00 AM

Good Post. very useful information.

Where do you teach?

**frijoli** · 12-13-2009, 08:19 AM

I teach at work. I used to teach at a local community college on the side, but injured my back so the long hours took their toll. I still teach it to new employees in the department or interns.
I use these calculation fairly often. I am an Automation Engineer and fluid power specialist for a plastics manufacturing company.

Clay

**KHK** · 12-13-2009, 10:31 AM

Thanks for sharing!!

**jonrya91** · 12-13-2009, 04:24 PM

Originally Posted by frijoli

I teach at work. I used to teach at a local community college on the side, but injured my back so the long hours took their toll. I still teach it to new employees in the department or interns.
I use these calculation fairly often. I am an Automation Engineer and fluid power specialist for a plastics manufacturing company.

Clay

That's awesome clay. I am an Industrial Engineer at a hydraulic fluid conditioning company. I have a fluid power hydraulics specialist cert. through the NFPA. I posted the NFPA study materials on the forum for everyone to review and reference.

I'm gonna be callin' you when i have trouble at work!!!!

**frijoli** · 12-18-2009, 10:30 PM

Originally Posted by jonrya91

That's awesome clay. I am an Industrial Engineer at a hydraulic fluid conditioning company. I have a fluid power hydraulics specialist cert. through the NFPA. I posted the NFPA study materials on the forum for everyone to review and reference.

I'm gonna be callin' you when i have trouble at work!!!!

If you're certified you should be okay, but I am always willing to share and help!

**bhardy501** · 12-25-2009, 03:41 PM

Thats great imfo. I am going to print that off and keep it. Thanks for posting it.

**BradBlazer** · 03-09-2011, 11:20 PM

When I was designing my grapple I put together this spreadsheet to calculate available force and relative speed over the range of motion. It allowed me to tweak the dimensions to provide more clamping force as it closed and more speed/less force as it approached full open. I'll attach the spreadsheet by changing the file suffix to .txt. To open the file you have to edit the suffix back to .xls