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05.08.2022
The two crane Superlift stunt
A video sent to us by a reader, and which appears to have been taken in mid-May, shows a seven section XCMG crane boom being supported at the top of the base section by a Sany crane, in order to prevent it from overturning while lifting a vessel at a long radius. This however, takes the crane from the stability limitation part of the load chart into the structural area.
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While the crane may well have survived the ordeal this time, the chance is that serious damage has been done which will come to light at a later date, possibly failing while making a far more modest lift that might be well within the crane's safe limits - if so, let’s hope it is not over a school playground.
If any of you can enlighten us to where it occurred - one source suggested Langfang City in Hubei Province in China BUT…. we cannot confirm that at all.
hairy
"(Don't assume they are all stupid... wrote): It could be a case that the load being lifted is well within the capacity of the primary crane boom structure, but the primary crane didn't have sufficient ballast on site, and that the secondary crane was basically substituting for the missing ballast."
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Yeah, but when you look shape of the boom, I think it s fair to assume, its not operating within the capacity.
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While i would never condone unsafe practices, one should not assume they are stupid either. It could be a case that the load being lifted is well within the capacity of the primary crane boom structure, but the primary crane didn't have sufficient ballast on site, and that the secondary crane was basically substituting for the missing ballast.
Crane lads
Don't assume I pray to God you're not in the lifting game.
hairy
"(Don't assume they are all stupid... wrote): It could be a case that the load being lifted is well within the capacity of the primary crane boom structure, but the primary crane didn't have sufficient ballast on site, and that the secondary crane was basically substituting for the missing ballast."
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Yeah, but when you look shape of the boom, I think it s fair to assume, its not operating within the capacity.
Red
While I don't jump to conclusions and proclaim stupidity, I would at least question the the operator(s) lack of good judgement.
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While i would never condone unsafe practices, one should not assume they are stupid either. It could be a case that the load being lifted is well within the capacity of the primary crane boom structure, but the primary crane didn't have sufficient ballast on site, and that the secondary crane was basically substituting for the missing ballast.