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Natarajan
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Join Date: Jul 2010
Posts: 60
Good Answers: 1

Crawler crane

11/26/2010 1:45 AM

Hi, I have seen a crawler crane specification which mentioned that Max. Lifting capacity of crane boom is 250t x 4.6 m. Please clarify about this 4.6m. Thanks in advance
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DVader1000
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#1

Re: Crawler crane

11/26/2010 2:15 AM

Distance of load from crane c.g.

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Natarajan
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Join Date: Jul 2010
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#2
In reply to #1

Re: Crawler crane

11/26/2010 5:08 AM

Thank you for your reply. It might be my homework but i don't know how to get the answer. Please clarify. Is it vertical or horizontal distance(regarding your answer)?. I will show two type of configuration of a crane. 1. Crane boom (max. lifting capacity 250t x 4.6m, max. boom length 91.4m) 2.Long boom (max. lifting capacity 47.1t x 12.4m, max. boom length 91.4m). Here i want to know about the diff. b/w 4.6m & 12.4m.
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lyn
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#3
In reply to #2

Re: Crawler crane

11/26/2010 5:15 AM

Horizontal.

"Here i want to know about the diff. b/w 4.6m & 12.4m."

The diff. b/w 4.6m & 12.4m is 7.8m.

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pipeit
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#5
In reply to #2

Re: Crawler crane

11/26/2010 7:08 AM

Yes the distance from the center of the pin and the C of G (Center of Gravity) of the load. The further your C of G on the load is from the center of the crane pine the lifting capacity decreases. Refer to Crane chart for value on capacity at a given distance. Essentially a proportion question.
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shahpolymers
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Join Date: Nov 2010
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#4

Polyoxymethylene (POM)

11/26/2010 6:54 AM

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