pneumatic cylinder help.

Were trying to figure out these pneumatics and we can’t figure out what kind of cylinder to use. Retracted, we want it to be 8 to 10 inches. We want to use it for our scissor lift, and that means a 2-way one, without the springs. (Ive never done anything with pneumatics before, so if I sound dumb, sorry :P) So…what would be the best one from this page:

Eh…theres no link to the page. Go there and type in pneumatics.

Thanks for the help,
2495

Unfortunately, you cannot use any of the cylinders that they sell, as far as I know.

You need to read this manual

http://www.usfirst.org/uploadedFiles/Community/FRC/FRC_Documents_and_Updates/2008_Assets/Manual/2008_Pneumatics_Manual.pdf

and go to the Bimba FIRST page

http://www.bimba.com/FirstFree.aspx

and order your 3 free cylinders there, and if you need more cylinders they need to be exactly what is listed on that page.

Also if you only have 8 to 10 inches for it in the retracted position, you won’t get much travel at all, especially with the large bore cylinders that can actually push with a lot of force.

I think what you mean by the two way one is one that will stay open or stay closed…for this configuration you’ll need a double solenoid (provided in the KoP) hooked up to your cylinder instead of a single solenoid. Moving on from that, bimba ofers 3 free cylinders every year to teams…it might be to late to order but give it a shot, the link to that page was posted farther above.

When ordering your cylinder keep in mind that stroke is how far it reaches, so if u want 8 inches of displacement get an 8 inch stroke. Bore is the thickness of the piston, the thicker the more force behind the cylinder.

Good luck!