<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body ><div>I reveiwed my pictures and Nuytco uses hydro-lek manipulator arms with a resevor that looks just like a air bag for semi trucks. I am pretty sure they are hydraulic.</div><div>Thanks,</div><div>Scott Waters</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:01/21/2015 5:01 PM (GMT-06:00) <br>To: Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br>Subject: Re: [PSUBS-MAILIST] Manipulator arm <br><br><br>Alan,<br>When I had my tour of Nuytco, I saw the arms well actually a shelf full of them and the valves. I assumed they were hydraulic, but maybe not. It could work with sea water, but fresh water could be problematic with freezing.<br>Hank--------------------------------------------<br>On Wed, 1/21/15, Alan James 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: Wednesday, January 21, 2015, 2:50 PM<br> <br> Not sure,<br> but don't the "Deep Workers" have<br> a hydraulic<br> system using sea water, with externalpump &<br> valves.Does<br> anyone know anything about this?Alan<br> From:<br> "swaters@waters-ks.com via Personal_Submersibles"<br> <personal_submersibles@psubs.org><br> <br> To: Personal<br> Submersibles General Discussion<br> <personal_submersibles@psubs.org> <br> <br> Sent:<br> Thursday, January 22, 2015 4:58 AM<br> Subject: Re:<br> [PSUBS-MAILIST] Manipulator arm<br> <br> <br> My plan<br> was to use O ring seal. I am using a comoensated<br> system.Thanks,Scott<br> Waters<br> <br> Sent from my U.S.<br> Cellular® Smartphone<br> <br> -------- Original message<br> --------<br> From: hank pronk via<br> Personal_Submersibles <br> Date:01/21/2015 <br> 9:41 AM (GMT-06:00) <br> To: Personal<br> Submersibles General Discussion <br> Subject:<br> Re: [PSUBS-MAILIST] Manipulator arm <br> <br> <br> Scott,<br> You<br> need to decide on what type of hyd system you are going with<br> before you dive into cylinders. If you are going with a<br> pressure compensated system, you can use cylinders with a<br> wiper seals on the shafts. If you not pressure<br> compensating, then use cylinders with o-ring seals on the<br> shafts. I would use o-ring sealed shafts regardless.<br> Hank--------------------------------------------<br> On Wed, 1/21/15, swaters@waters-ks.com via<br> Personal_Submersibles<br> <personal_submersibles@psubs.org> wrote:<br> <br> Subject: Re: [PSUBS-MAILIST]<br> Manipulator arm<br> To: "Personal<br> Submersibles General Discussion"<br> <personal_submersibles@psubs.org><br> <br> Received: Wednesday, January 21, 2015, 8:25 AM<br> <br> Gotcha.<br> I<br> got about 8 different suppliers I have found so far with<br> SS cylinders. I think I'll order a few to<br> play with. I<br> am also planning on using<br> electric silionoids for<br> controlling the<br> valves.Thanks,Scott<br> Waters<br> <br> <br> Sent<br> from my U.S.<br> Cellular® Smartphone<br> <br> <br> -------- Original message --------<br> From:<br> hank pronk via Personal_Submersibles <br> <br> Date:01/21/2015 6:54 AM (GMT-06:00) <br> <br> To: Personal Submersibles General Discussion <br> Subject: Re: [PSUBS-MAILIST] Manipulator arm<br> <br> <br> <br> <br> Scott,<br> Gamma uses air cylinders with<br> hydraulic fluid and<br> pump. The hydraulic<br> system is very standard except it<br> uses air<br> cylinders in place of hydraulic cylinders. <br> <br> Hank--------------------------------------------<br> On Tue, 1/20/15, swaters@waters-ks.com via<br> Personal_Submersibles<br> <br> <personal_submersibles@psubs.org> wrote:<br> <br> Subject: Re:<br> [PSUBS-MAILIST] Manipulator arm<br> To:<br> "Personal Submersibles General Discussion"<br> <personal_submersibles@psubs.org><br> Received: Tuesday, January 20, 2015, 10:27<br> PM<br> <br> <br> Is Gamma all air cylinders? Do you just<br> use<br> a air compressor? What happens to the<br> air once it is in<br> the<br> <br> cylinder and you want to lower the cylinder? Is it<br> recompressed or somehow expelled? I really<br> don't know<br> crap about pnematics.<br> Haha. Why do all the subs use<br> hydrolics<br> and not air. For example<br> <br> hydro-lek?Thanks,Scott<br> Waters<br> <br> Sent<br> <br> from my U.S. Cellular® Smartphone<br> <br> -------- Original message --------<br> From: hank pronk via Personal_Submersibles <br> <br> Date:01/20/2015 9:06 PM (GMT-06:00)<br> <br> To: Personal Submersibles General<br> Discussion <br> Subject: Re:<br> [PSUBS-MAILIST] Manipulator arm <br> <br> <br> Scott,<br> Not sure why you want hydraulic cylinders. <br> You want<br> air cylinders, they are light<br> weight and all<br> aluminum. <br> If you use 2 in bore air cylinders you can<br> run on a 500<br> psi<br> <br> system. Also air cylinders typically have 5/8 rods<br> and<br> that is the most<br> important part. The rod size is<br> what<br> the water pressure is pushing back against<br> you<br> system. <br> Air<br> cylinders have a single o ring on the piston and are<br> cheap and easy to replace. If you want ss<br> rods then just<br> replace the chrome rods<br> when they wear out. I made<br> my<br> own rods for Gamma, easy peezy.<br> <br> Hank--------------------------------------------<br> On Tue, 1/20/15, swaters@waters-ks.com<br> via<br> Personal_Submersibles<br> <personal_submersibles@psubs.org><br> wrote:<br> <br> Subject: Re:<br> [PSUBS-MAILIST] Manipulator arm<br> To:<br> "Personal Submersibles General<br> <br> Discussion"<br> <br> <personal_submersibles@psubs.org><br> <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> <br> Sent<br> from my<br> U.S. Cellular® Smartphone<br> <br> -------- Original message --------<br> From: hank pronk via<br> Personal_Submersibles <br> <br> Date:01/20/2015 7:34 PM (GMT-06:00) <br> <br> To: Personal Submersibles General Discussion <br> Subject: Re: [PSUBS-MAILIST] Manipulator<br> arm <br> <br> <br> Are you using hydraulic cylinders or air<br> cylinders.<br> <br> Hank--------------------------------------------<br> On Tue, 1/20/15, swaters@waters-ks.com<br> via<br> Personal_Submersibles<br> <personal_submersibles@psubs.org><br> wrote:<br> <br> Subject:<br> [PSUBS-MAILIST] Manipulator arm<br> To:<br> "psubs"<br> <br> <personal_submersibles@psubs.org><br> <br> Received: Tuesday, January 20, 2015, 7:51 PM<br> <br> Does<br> anyone have a reccomendation on a source<br> for<br> hydrolic<br> <br> cylinders? Ofcourse there are tons online, just<br> wondering<br> if<br> someone has a particular place they like<br> to get<br> them.Thanks,Scott Waters<br> <br> Sent<br> from my U.S. Cellular®<br> Smartphone<br> <br> -----Inline Attachment Follows-----<br> <br> <br> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> <br> <br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br> <br> <br> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> <br> <br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br> <br> <br> <br> -----Inline Attachment Follows-----<br> <br> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> <br> <br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br> <br> <br> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> <br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br> <br> <br> <br> -----Inline Attachment Follows-----<br> <br> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> <br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br> <br> <br> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> <br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br> <br> <br> <br> -----Inline Attachment Follows-----<br> <br> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> <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> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br> <br> <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>