Hey Iggy,

I don't recall seeing an overhead crane removed, but I've seen 5 that
I can recall being installed. Each of those was done with a crane on
the ground outside the building lifting the cross-beam from the floor
of the building through a 4' X 4' access cut in the roof for the
purpose. The beam is most often (still) on a semi-trailer, so there
is no need to have it off-loaded beforehand. After installation is
complete, the access hole is then made into a sky-light.

Take care

Brian Lawson.
XXXXXXXXXXXXXXX


On Sat, 01 Nov 2014 18:18:27 -0500, Ignoramus3507
wrote:

Overhead bridge cranes, at auctions, sell either for outrageous money,
or for next to nothing. The reason is that, while expensive to order
and install, they are difficult to take down and built to suit a
particular building. So, unless there is an auction bidder who needs
this crane, there is no one to bid on them.

And here comes my thinking, I want to be able to bid on them and and
remove, economically and safely, for scrap metal.

I am talking about the "big ones", say 30 ton capacity and 60 feet
sapan, not little ones.

The $64,000 question is how to take them down.

I have a 30,000 lbs capacity forklift and a 11 foot boom for it, that
can be raised by forklift to about 11 feet, giving me about 22 feet of
vertical reach. I also have a number of smaller forklifts like 15,000,
18,000 etc.

What do you think, can I take down biggish cranes with it, if they are
say at the height of 20 feet?

I am not stupid and I can think of various possibilities and
attachments, however I also see that things can go very wrong at such
great heights and leverages.

Anyone seen this done?

Maybe add outriggers to the forklift?

i