<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body ><div><br></div><div><div>Is Gamma all air cylinders? Do you just use a air compressor? What happens to the air once it is in the cylinder and you want to lower the cylinder? Is it recompressed or somehow expelled? I really don't know crap about pnematics. Haha. Why do all the subs use hydrolics and not air. For example hydro-lek?</div><div>Thanks,</div><div>Scott Waters</div></div><div><br></div><div><br></div><div><div style="font-size:9px;color:#575757">Sent from my U.S. Cellular® Smartphone</div></div><div></div><br><br>-------- Original message --------<br>From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> <br>Date:01/20/2015 9:06 PM (GMT-06:00) <br>To: Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br>Subject: Re: [PSUBS-MAILIST] Manipulator arm <br><br><br>Scott,<br>Not sure why you want hydraulic cylinders. You want air cylinders, they are light weight and all aluminum. If you use 2 in bore air cylinders you can run on a 500 psi system. Also air cylinders typically have 5/8 rods and that is the most important part. The rod size is what the water pressure is pushing back against you system. Air cylinders have a single o ring on the piston and are cheap and easy to replace. If you want ss rods then just replace the chrome rods when they wear out. I made my own rods for Gamma, easy peezy.<br>Hank--------------------------------------------<br>On Tue, 1/20/15, swaters@waters-ks.com via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br><br> Subject: Re: [PSUBS-MAILIST] Manipulator arm<br> To: "Personal Submersibles General Discussion" <personal_submersibles@psubs.org><br> Received: Tuesday, January 20, 2015, 8:52 PM<br> <br> Hydrolic.<br> Also what size bore does yoursub have<br> Hank?Thanks,Scott Waters<br> <br> Sent<br> from my U.S. Cellular® Smartphone<br> <br> -------- Original message --------<br> From: hank pronk via Personal_Submersibles <br> Date:01/20/2015 7:34 PM (GMT-06:00) <br> To: Personal Submersibles General Discussion <br> Subject: Re: [PSUBS-MAILIST] Manipulator arm <br> <br> <br> Are you using hydraulic cylinders or air cylinders.<br> Hank--------------------------------------------<br> On Tue, 1/20/15, swaters@waters-ks.com via<br> Personal_Submersibles<br> <personal_submersibles@psubs.org> wrote:<br> <br> Subject: [PSUBS-MAILIST] Manipulator arm<br> To: "psubs"<br> <personal_submersibles@psubs.org><br> Received: Tuesday, January 20, 2015, 7:51 PM<br> <br> Does<br> anyone have a reccomendation on a source for hydrolic<br> cylinders? Ofcourse there are tons online, just wondering<br> if<br> someone has a particular place they like to get<br> them.Thanks,Scott Waters<br> <br> Sent<br> from my U.S. Cellular®<br> Smartphone<br> -----Inline Attachment Follows-----<br> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br> <br> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br> <br> <br> -----Inline Attachment Follows-----<br> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br> <br><br>_______________________________________________<br>Personal_Submersibles mailing list<br>Personal_Submersibles@psubs.org<br>http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br><br></body></html>