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Dec 30th, 2023
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 Engineers... in need a strength estimate
#12236490
05/08/17 07:08 PM
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Joined: Apr 2010
Posts: 1,176
THF_BigPig
OP
Extreme Angler
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OP
Extreme Angler
Joined: Apr 2010
Posts: 1,176 |
I have a hoist that currently uses a 4x4 1/4 inch thick steel I-beam in a 6 foot span. I need a new piece to span 10 feet. What kind of strength or weight will this support lifting from the middle of the beam? Do I need to go bigger?
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Re: Engineers... in need a strength estimate
[Re: THF_BigPig]
#12236501
05/08/17 07:14 PM
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Joined: Apr 2009
Posts: 30,198
Moto-Moto
TFF Guru
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TFF Guru
Joined: Apr 2009
Posts: 30,198 |
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Re: Engineers... in need a strength estimate
[Re: THF_BigPig]
#12236504
05/08/17 07:15 PM
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Joined: Nov 2010
Posts: 12,094
Urban Fisher
TFF Guru
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TFF Guru
Joined: Nov 2010
Posts: 12,094 |
Not sure, but I did want to ask about the dustless blasting. Have you started that yet? I was watching a car show on Velocity this weekend and they did a feature about it. The guy that represents the DB system even made a comment about how some people buy them for extra income...like a policeman! He said that with other examples, but it did make me think he was talking about you.
Jane says I've never been in love - no
She don't know what it is
She only knows if someone wants her
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Re: Engineers... in need a strength estimate
[Re: THF_BigPig]
#12236511
05/08/17 07:17 PM
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Joined: Feb 2008
Posts: 15,651
bogey♂
TFF Guru
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TFF Guru
Joined: Feb 2008
Posts: 15,651 |
what capacity is the hoist?
you know, nothing wrong with seven men who met on the internet going for a swim together
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Re: Engineers... in need a strength estimate
[Re: THF_BigPig]
#12236514
05/08/17 07:20 PM
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Joined: Aug 2006
Posts: 19,835
COFF
TFF Guru
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TFF Guru
Joined: Aug 2006
Posts: 19,835 |
You'd need to get the specs and ratings on your hoist and cable to be sure. Probably wouldn't cost much more to upsize to a 4x6" beam. That would give you a good bit of extra weight capacity without having any other changes to your hoist.
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Re: Engineers... in need a strength estimate
[Re: THF_BigPig]
#12236519
05/08/17 07:23 PM
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Joined: Apr 2010
Posts: 2,952
AdanV
Extreme Angler
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Extreme Angler
Joined: Apr 2010
Posts: 2,952 |
I have a hoist that currently uses a 4x4 1/4 inch thick steel I-beam in a 6 foot span. I need a new piece to span 10 feet. What kind of strength or weight will this support lifting from the middle of the beam? Do I need to go bigger? On the side, there should be a label telling you the lifting capacity. Since you're going to extend the length, you will reduce the weight capacity, since extending out the length reduces the stability.
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Re: Engineers... in need a strength estimate
[Re: THF_BigPig]
#12236534
05/08/17 07:31 PM
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Joined: Apr 2010
Posts: 1,176
THF_BigPig
OP
Extreme Angler
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OP
Extreme Angler
Joined: Apr 2010
Posts: 1,176 |
The electric hoist is rated for 1100lbs single line or 2200 with a snatch block. The pulley is in the center of the 6 foot beam and will be in the center of the 10 foot beam, supported on the sides of the 10 foot beam.
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Re: Engineers... in need a strength estimate
[Re: THF_BigPig]
#12236537
05/08/17 07:32 PM
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Joined: Apr 2010
Posts: 1,176
THF_BigPig
OP
Extreme Angler
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OP
Extreme Angler
Joined: Apr 2010
Posts: 1,176 |
It's main purpose will be lifting cabs, engines, frames. Nothing anywhere close to the lifting capacity of the electric hoist. Just want to make triple sure the beam is up for it
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Re: Engineers... in need a strength estimate
[Re: THF_BigPig]
#12236544
05/08/17 07:37 PM
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Joined: Oct 2006
Posts: 104,709
Bigbob_FTW
Big Sprocket Bob
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Big Sprocket Bob
Joined: Oct 2006
Posts: 104,709 |
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Re: Engineers... in need a strength estimate
[Re: THF_BigPig]
#12236549
05/08/17 07:42 PM
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Joined: Jun 2008
Posts: 11,414
Bass&More
TFF Guru
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TFF Guru
Joined: Jun 2008
Posts: 11,414 |
I have a hoist that currently uses a 4x4 1/4 inch thick steel I-beam in a 6 foot span. I need a new piece to span 10 feet. What kind of strength or weight will this support lifting from the middle of the beam? Do I need to go bigger? I would suggest with the increase you have stated to upgrade to a 4 X 4 3/8 as a direct ratio result of 25% increase of GWLR and cross sectional increase of the lifting beam. Also do not forgo your hoist base mounting and foundation footings are adequate to support a sustained load plus ESR of one and a half times the GWLR of the hoist for a starter.  
Last edited by Bass&More; 05/08/17 07:43 PM.
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Re: Engineers... in need a strength estimate
[Re: Bass&More]
#12236557
05/08/17 07:47 PM
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Joined: Sep 2008
Posts: 121,182
hopalong
Pescador Loco
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Pescador Loco
Joined: Sep 2008
Posts: 121,182 |
I have a hoist that currently uses a 4x4 1/4 inch thick steel I-beam in a 6 foot span. I need a new piece to span 10 feet. What kind of strength or weight will this support lifting from the middle of the beam? Do I need to go bigger? I would suggest with the increase you have stated to upgrade to a 4 X 4 3/8 as a direct ratio result of 25% increase of GWLR and cross sectional increase of the lifting beam. Also do not forgo your hoist base mounting and foundation footings are adequate to support a sustained load plus ESR of one and a half times the GWLR of the hoist for a starter. what he said ^ ^ 
" Hop, set the hook"!
hopalong 99,999
TexDawg 99,999
FJB! not my president by a long shot!
lake fork FISHERMANS COVE MARINA/reservations - 903 474 7479
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Re: Engineers... in need a strength estimate
[Re: Urban Fisher]
#12236903
05/08/17 11:31 PM
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Joined: Apr 2010
Posts: 1,176
THF_BigPig
OP
Extreme Angler
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OP
Extreme Angler
Joined: Apr 2010
Posts: 1,176 |
Not sure, but I did want to ask about the dustless blasting. Have you started that yet? I was watching a car show on Velocity this weekend and they did a feature about it. The guy that represents the DB system even made a comment about how some people buy them for extra income...like a policeman! He said that with other examples, but it did make me think he was talking about you. Still waiting on the machine
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Re: Engineers... in need a strength estimate
[Re: THF_BigPig]
#12236992
05/09/17 12:41 AM
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Joined: Jun 2005
Posts: 33,689
lanman71
Maroon!
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Maroon!
Joined: Jun 2005
Posts: 33,689 |
12"x12"x10'
Go big or go home
What a maroon!
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Re: Engineers... in need a strength estimate
[Re: lanman71]
#12237156
05/09/17 02:23 AM
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Joined: Sep 2008
Posts: 5,199
glenls
TFF Celebrity
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TFF Celebrity
Joined: Sep 2008
Posts: 5,199 |
6" or 8" I beam. 3/16" or even better 1/4" flanges. Pick up what that hoist will. Also put a trolley on the I beam. Move side to side.
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Re: Engineers... in need a strength estimate
[Re: THF_BigPig]
#12237171
05/09/17 02:30 AM
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Joined: Jul 2005
Posts: 11,174
MARKIT
TFF Guru
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TFF Guru
Joined: Jul 2005
Posts: 11,174 |
It will work fine
Don't get under it
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