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#854634 - Mon May 28 2012 02:37 PM Built a Gantry crane  
DavidF  Offline
Shop Shark
Joined: Jun 2010
Posts: 1,014
Austin, TX
I am almost finished with my homemade Gantry crane that I will use to pull the engine, lift cab off frame, etc. I purchased a 1 ton chain host from HF that I will chain to cross beam. Braces on uprights not yet installed, but will be 3/4" EMT similiar to upper braces.



#854665 - Mon May 28 2012 04:37 PM Re: Built a Gantry crane [Re: DavidF]  
Achipmunk  Offline
Joined: Dec 2001
Posts: 15,563
Boiling Springs, S. C. 29316
...with the added upright braces that is a pretty nice rig. Thanks for showing us.


1937 Chevy Pickup
1952 Chevy Panel
Pictures in my Photobucket
1950 Chevy Coupe

I'd rather walk and carry a Chevy hub cap than ride in a Ferd.
I can explain it to you, but I can't understand it for you smile

#854681 - Mon May 28 2012 06:19 PM Re: Built a Gantry crane [Re: Achipmunk]  
MNSmith  Offline

Joined: Oct 2005
Posts: 2,244
So Cal
Looks good. For safety reasons, I would suggest you bring the work to the crane and not the other way around.


#854725 - Mon May 28 2012 10:08 PM Re: Built a Gantry crane [Re: MNSmith]  
DavidF  Offline
Shop Shark
Joined: Jun 2010
Posts: 1,014
Austin, TX
Gantry Crane is finished. Very sturdy. The base is attached to the post with singel 7" lag bolts. I will probably add a plywood gusset to keep the base form being able to pivot around the uprights, not much of problem now, but with use may loosen up and become a problem. First order of business is to pull the engine.


#854738 - Mon May 28 2012 10:57 PM Re: Built a Gantry crane [Re: DavidF]  
Bill Marlow  Offline
Camp Commandant
Joined: Nov 2000
Posts: 1,660
Dayton, Maryland. USA
Looks familiar.
Heres mine, no motor pulling, just to get the cab off and back on.
http://rides.webshots.com/photo/2195119120083734483uHWizr

I have since updated the winch to something more appropriate.
Hope to get to use it soon as I really want to set the 860 cab back on.



#855297 - Wed May 30 2012 09:09 PM Re: Built a Gantry crane [Re: Bill Marlow]  
R-Bo  Offline
Shop Shark
Joined: Feb 2007
Posts: 481
Charlotte, NC
I wouldn't be comfortable putting wood in shear loads like that, but if it works...I wouldn't put any body parts under anything you pick up. I wold be OK with using wood as uprights, but not the horizontals.


R-Bo

1959 Apache 1/2 ton Big Window, Short bed Fleetside (under reconstruction)
1966 GMC 305V6 in the family

#855301 - Wed May 30 2012 10:00 PM Re: Built a Gantry crane [Re: R-Bo]  
Grigg  Offline
Joined: May 2005
Posts: 8,995
Lexington, VA
Shear?
I see compression and bending.

With more bracing on the uprights it looks suitable to me. Obviously it still has it's limits before stuff breaks.

I agree as with any lifting device you ought to stay out from under the load...

Grigg


1951 GMC 250 in the Project Journals
1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-

#855309 - Wed May 30 2012 11:27 PM Re: Built a Gantry crane [Re: Grigg]  
FriedGreenTmater  Offline
Shop Shark
Joined: Jun 2009
Posts: 3,257
colorado
Don't they have cherry pickers on craigslist where you guys live? You can probably pick one up for the price of the wood you used.


Fried Green T'mater (Vern)
1953 Chevrolet 3600
In the Stovebolt Gallery
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#855409 - Thu May 31 2012 11:16 AM Re: Built a Gantry crane [Re: FriedGreenTmater]  
Bill Marlow  Offline
Camp Commandant
Joined: Nov 2000
Posts: 1,660
Dayton, Maryland. USA
Originally Posted By FriedGreenTmater
Don't they have cherry pickers on craigslist where you guys live? You can probably pick one up for the price of the wood you used.


When you say cherry picker, I assume you mean an engine lift. At least in my case, an engine lift wouldn't have worked to lift the cab off of my 860, not even close. To clear the cab support in the rear, the very lowest part of the cab needed to be 55" off the ground. Also, I bartered for the 6x6s. Hauled some stuff on my gooseneck trailer for a guy and he filled my tank and gave me the lumber. I would never trust my crane to lift a lot of weight but my cab has an aluminum roof and rear panels. When I set it back on there won't be anything in it. No floor pans, no dash, wires etc so feel pretty confident that what I built is strong enough to lift my cab that couldn't weight more than 300 or 400 pounds tops.
Oh and when the cab is back on, those 6x6's have another job waiting for them.


#855443 - Thu May 31 2012 03:00 PM Re: Built a Gantry crane [Re: Bill Marlow]  
DavidF  Offline
Shop Shark
Joined: Jun 2010
Posts: 1,014
Austin, TX
The wood/steel gantry that I built will easily handle the maximum load of 1500 lbs that I plan to never exceed. I lifted an engine off my engine stand yesterday and the gantry performed flawless with no unwanted flex or movement. Rolling the gantry with the engine load was a breeze and the crane remained very rigid.


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