Asia's largest revolving floating crane has been handed over for salvage
operations on the South China Sea.
The derrick, called Hua Tian Long, was developed by the Shanghai Zhenhua Port
Machinery Co Ltd (ZPMC), a leading manufacturer of cranes and large steel
structures. It was designed with a lift power of 4,000 tons and delivered to the
Guangzhou Salvage Bureau earlier this week.
It marks a milestone in China's capability to design and manufacture colossal
marine equipment on its own. And the barge itself provides badly needed devices
to help explore the marine oil frontier and assist salvage initiatives.
Guan Tongxian, ZPMC's chief executive offi cer, told China Daily Shanghai
& Delta that his company will design next year a revolving floating crane
with 7,000 tons of lift power, currently the greatest in the world.
On Tuesday, the 165-metre-long, 48-metre-wide barge slowly lifted a 4,000-ton
load and revolved steadily as representatives from the ZPMC, the salvage bureau
and municipal government, as well as college professors, looked on.
According to the company, traditional vessels with fixed floating cranes
could not venture out to sea, as they might be damaged in potentially severe
weather. But Hua Tian Long, with a revolving crane that can be laid down in case
of huge gusts and waves, could be dispatched to conduct multiple tasks such as
salvage and oil exploration.
"It's totally designed and manufactured by Chinese intellectuals on their
own, and it filled in the gap in this regard," Guan said.
The derrick will be used to recover a sunken vessel from the Song Dynasty
(960-1127) in the South China Sea, before it possibly being employed to help
explore marine oil fields.
Modern devices are needed as companies are venturing further out to sea,
drilling deeper than ever in their quest for energy as oil consumption grows and
access to most oil-rich regions becomes increasingly restricted.
A multi-functional firm, ZPMC provides products including quayside container
cranes, rubber-tyred gantry cranes (RTGs), bulk-material ship loaders and
un-loaders, bucket-wheel stackers and re-claimers, portal cranes, floating
cranes, engineering vessels and large steel bridge structures.
So far, as per its order book, ZPMC has an outstanding supply record of 1,000
quayside container cranes, 1,500 RTGs and numerous non-standard large port
According to a survey by the British World Cargo News magazine,ZPMC had the
largest order book for large container cranes during the past seven years.
ZPMC designed and manufactured the world's fi rst set of quayside container
cranes that can handle twin 40-inch containers with dual hoists. The double
trolley quayside container cranes designed by ZPMC are also taking leading
positions in the world.
ZPMC has been listed at the Shanghai Stock Exchange for A and B shares, and
the company's net assets have reached US$450 million.