Not recommended, but I cut a 20lb tank with a 6" horizontal metal bandsaw. Just have to know at what point the saw will try and pull the tank out of your hands.
Dave Patterson
odd_kins@yahoo.com
http://home.comcast.net/~oddkins/foundry_home.html
--- On Mon, 10/25/10, Thomas S. Knutsen <la3pna@gmail.com> wrote:
From: Thomas S. Knutsen <la3pna@gmail.com>
Subject: Re: [gingery_machines] cutting propane tank
To: gingery_machines@yahoogroups.com
Date: Monday, October 25, 2010, 9:27 AM
An regular hack saw is the safest way to cut any container that have hold an
flamable liquid or gas.
Most containers saw through fairly quick, when you get over the mental
barrier of starting.
BR
Thomas.
2010/10/25 tjwal <johnwa@telusplanet.net>
>
>
> What you are smelling is the odorant that they add to propane and NG so you
> can smell a leak. You will smell it long after all the propane is gone.
>
> OTOH Even after flushing with water I found a lot of oil in the bottom of
> the ones that I cut. If you are cutting with a torch this might get hot
> enough to vaporize and go boom.
>
> I used a bosch jigsaw with metal cutting blade. It went through the tank
> like a knife thru butter. There were a few hot chips but no where near
> enough heat to get the oil to vaporize.
>
> JohnW
>
> --- In gingery_machines@yahoogroups.com<gingery_machines%40yahoogroups.com>,
> false <cheops210@...> wrote:
> >
> > Hi All, This may have been posted before but I have cut a number of used
> propane tanks safely. First I open the valve all the way and let it remain
> open for a couple of days ( I am takling about the old style containers that
> cannot be legally refilled) Then I remove the metal guard around the cutoff
> valve being careful not to cut into the tank (this guard incidentally can be
> formed into a nice trivet for resting the crucible upon) I thin strike the
> valve a couple of sharp blows to loosen it a bit.(it is Brass folks and
> doesn't spark) I then use a wrench and cheater bar to unscrew the valve.
> After that fill the container with water and allow to set a few days ( it
> will smell like gas for a while) then cut, if concerned about residual gas
> still in there leave the water inside as you cut. never had a hint of a
> problem so far. The larger tanks (8 Gal I think,) make quiet adequate
> furnaces. I have scored several of these from the local hardware store where
> > people have turned them in for disposal. Won't hurt to ask if you local
> refils propane tanks.
> > Bill,
> > www.willydog5.com
> >
>
>
>
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