[PSUBS-MAILIST] Gantry lift

[hank pronk]

Scott,
There are many options, I go be experience because I am not an engineer.   You are best to get the info from an engineer or copy one that is rated.  The gantry in Texas is a bargain, it will cost you that in material and time.
Hank
On Monday, March 31, 2014 4:36:26 PM, "swaters at waters-ks.com" <swaters at waters-ks.com> wrote:
  
Hank, 
Is there different sizes of I beams? When I called the steal place they asked me what is the weight per foot?  

Jim,  
I contacted the that is selling the lifts from Texas. That might just work better.  

Thanks, 
Scott Waters  

-------- Original Message --------
>Subject: Re: [PSUBS-MAILIST] Gantry lift
>From: hank pronk <hanker_20032000 at yahoo.ca>
>Date: Mon, March 31, 2014 1:31 pm
>To: Personal Submersibles General Discussion
><personal_submersibles at psubs.org>
>
>
>Scott, 
>You should not make the same mistake I made, 8 feet is not enough.  Go with at least 9 feet inside.   
>I use a 8,000lb warren winch with a single pully block and that is perfect.  I have to build a new gantry because I built mine with stuff I had instead of buying proper material.  I am building A frames with 2in square 1/4 wall.  Then a 10in I beam across the top with a 10 foot span. 
>Hank 
>On Monday, March 31, 2014 2:09:55 PM, "swaters at waters-ks.com" <swaters at waters-ks.com> wrote:
> 
>Hey guys, 
>
>I am wanting to build a gantry lift in my shop so I can put my sub on the trailer and take it back off the trailer without having to pay to rent a telehandler. It would need to hold the sub (4500 lbs) plus a little extra. I was thinking of building it out of I beams. I know nothing about structural design with I beams but I believe it should be pretty easy. The gantry lift would be 9' tall and 8' wide. What size I beams should I use? 
>
>Also what is the best kind of winch or block and tackle device to use that is inexpensive? 
>
>Thanks for the help, 
>Scott Waters
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