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Contractors World

 
Contractors World - AFRICA
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construction, demolition, mining and quarrying industries.

 
Contractors World AFRICA - 2016 Vol 7 No 5

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No fewer than 23 cranes from Potain’s special-application, luffing jib, topless and top-slewing ranges combine to offer broad lifting coverage on huge project.

Laos

Cranes Keep Dam Project On Schedule

No fewer than 23 cranes from Potain’s special-application, luffing jib, topless and top-slewing ranges combine to offer broad lifting coverage on huge project.

One of the largest groups of Potain cranes at work in Asia is helping the Xayaburi dam in Laos stay on schedule as the eight-year project enters its second phase. The 23 Potain tower cranes began arriving at the job site in 2012 and are expected to stay on site for another three or four years, as the project builds towards its 2020 activation date.

The success of the highly ambitious dam is strongly dependent on reliable performance from the fleet of Potain tower cranes, and to date that performance has been exactly as expected.

There are two huge Potain MD 1600 cranes installed on the job that are playing the lead role in the enormous concrete pouring operation. The cranes have been configured with 80 m of jib and have a maximum rated capacity of 64 t.

Roller Compacted Concrete is poured by the cranes at rates of up to 250 m³ per hour and the MD 1600 cranes are working with Potain’s top-belt concrete placing system.

The top-belt system acts as a concrete conveyor belt that extends 25 m beyond the jib, enabling each crane to pour up to 600 t of concrete per hour at a radius of up to 105 m.

Main contractor on the project is Thai company, CH. Karnchang PCL, and the Potain cranes were supplied to the company by S.B. Siam, the exclusive dealer for the cranes in Thailand.

Verawat Siriboonrit, sales manager for S.B. Siam, said his company remains closely involved with the project.

The cranes have been performing well and have actually helped the project stay ahead of schedule,
     We’ve been training a lot of people associated with the job and also keeping a steady supply of parts heading up to the location. The job site is working 24/7, so it’s imperative that the cranes stick to their tasks and also fit in with the overall construction schedule. So far they’ve performed well.


Alongside these are four MCT 385 units, which have a maximum capacity of 14 t and have been configured with jib lengths of 75 m. They are working at heights that range from 50 m to 135 m.Alongside the two MD 1600 cranes are a mix of 21 other Potain cranes. The cranes are strategically positioned to give every square meter of the job site at least 3 t of lifting capacity.

The most popular choice for the job site is the MC 310K12, and there are 11 of these positioned across the project.

These units have a 12 t maximum capacity, and are fitted with jib lengths ranging from 50 m to 70 m, and with working heights ranging from 50 m to 100 m.

Alongside these are four MCT 385 units, which have a maximum capacity of 14 t and have been configured with jib lengths of 75 m. They are working at heights that range from 50 m to 135 m.

continued > > >


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