[PSUBS-MAILIST] Manipulator arm

Wed Jan 21 10:58:37 EST 2015

My plan was to use O ring seal. I am using a comoensated system.
Thanks,
Scott Waters

Sent from my U.S. Cellular® Smartphone

-------- Original message --------
From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> 
Date:01/21/2015  9:41 AM  (GMT-06:00) 
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
Subject: Re: [PSUBS-MAILIST] Manipulator arm 

Scott,
You need to decide on what type of hyd system you are going with before you dive into cylinders.  If you are going with a pressure compensated system, you can use cylinders with a wiper seals on the shafts.  If you not pressure compensating, then use cylinders with o-ring seals on the shafts.  I would use o-ring sealed shafts regardless.
Hank--------------------------------------------
On Wed, 1/21/15, swaters at waters-ks.com via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Subject: Re: [PSUBS-MAILIST] Manipulator arm
To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
Received: Wednesday, January 21, 2015, 8:25 AM

Gotcha.
I got about 8 different suppliers I have found so far with
SS cylinders. I think I'll order a few to play with. I
am also planning on using electric silionoids for
controlling the valves.Thanks,Scott
Waters

Sent
from my U.S. Cellular® Smartphone

-------- Original message --------
From: hank pronk via Personal_Submersibles  
Date:01/21/2015  6:54 AM  (GMT-06:00) 
To: Personal Submersibles General Discussion  
Subject: Re: [PSUBS-MAILIST] Manipulator arm 

Scott,
Gamma uses air cylinders with hydraulic fluid and
pump.  The hydraulic system is very standard except it
uses air cylinders in place of hydraulic cylinders.  
Hank--------------------------------------------
On Tue, 1/20/15, swaters at waters-ks.com via
Personal_Submersibles
<personal_submersibles at psubs.org> wrote:

  Subject: Re: [PSUBS-MAILIST] Manipulator arm
  To: "Personal Submersibles General Discussion"
<personal_submersibles at psubs.org>
  Received: Tuesday, January 20, 2015, 10:27 PM

  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?Thanks,Scott
  Waters

  Sent
  from my U.S. Cellular® Smartphone

  -------- Original message --------
  From: hank pronk via Personal_Submersibles  
  Date:01/20/2015  9:06 PM  (GMT-06:00) 
  To: Personal Submersibles General Discussion  
  Subject: Re: [PSUBS-MAILIST] Manipulator arm 

  Scott,
  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.
  Hank--------------------------------------------
  On Tue, 1/20/15, swaters at waters-ks.com via
  Personal_Submersibles
  <personal_submersibles at psubs.org> wrote:

  Subject: Re: [PSUBS-MAILIST] Manipulator arm
  To: "Personal Submersibles General
Discussion"
  <personal_submersibles at psubs.org>
  Received: Tuesday, January 20, 2015, 8:52 PM

  Hydrolic.
  Also what size bore does yoursub have
  Hank?Thanks,Scott Waters

  Sent
  from my U.S. Cellular® Smartphone

  -------- Original message --------
  From: hank pronk via Personal_Submersibles  
  Date:01/20/2015  7:34 PM  (GMT-06:00) 
  To: Personal Submersibles General Discussion  
  Subject: Re: [PSUBS-MAILIST] Manipulator arm 

  Are you using hydraulic cylinders or air cylinders.
  Hank--------------------------------------------
  On Tue, 1/20/15, swaters at waters-ks.com via
  Personal_Submersibles
  <personal_submersibles at psubs.org> wrote:

    Subject: [PSUBS-MAILIST] Manipulator arm
    To: "psubs"
  <personal_submersibles at psubs.org>
    Received: Tuesday, January 20, 2015, 7:51 PM

    Does
    anyone have a reccomendation on a source for
  hydrolic
    cylinders? Ofcourse there are tons online, just
  wondering
  if
    someone has a particular place they like to get
    them.Thanks,Scott Waters

    Sent
    from my U.S. Cellular®
    Smartphone
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