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India's largest coal handling agency - Mjunction

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CORPORATE<br />

Sandvik installs its first primary<br />

gyratory crusher<br />

Coal Insights Bureau<br />

Sandvik Mining and Construction, a<br />

unit of Sweden-based Sandvik Group,<br />

has installed its first primary gyratory<br />

crusher, a CG820, in a record time of only 18<br />

days, at the iron ore mine of Tata Steel Ltd at<br />

Noamundi, a company official said.<br />

“This is the quickest know time for<br />

replacement of an old crusher, including<br />

total installation of a new primary gyratory<br />

crusher,” the Regional Product Line Manager,<br />

Mine Crushing, Sandvik Asia, Avijit Paul,<br />

said.<br />

The 18 day-period of installation<br />

comprised dismantling the old crusher and<br />

two feeders, assembly and installation of the<br />

gyratory crusher, erection of apron feeders,<br />

installation of VFD drive and complete<br />

automation, Paul said.<br />

A replacement and installation of this size<br />

usually requires a minimum time of 30 days,<br />

he claimed.<br />

The crusher was supplied by Sandvik Mining and<br />

Construction for the processing of ore with a maximum feed<br />

size of 1200 mm (47.2 inches) and capacity up to 3500 mtps<br />

(3858 stph).<br />

The CG820 primary gyratory crusher replaced a Fuller<br />

Trailor primary gyratory crusher in the plant. The replacement<br />

will lead to modernisation of the primary crushing stage,<br />

increased capacity, large feed size intake and a more power<br />

drive, Paul said.<br />

According to him, Tata Steel chose Sandvik as supplier<br />

due to its ability to present a technically superior design with<br />

such features as spherical spider bearing,<br />

hydraulic adjustment, secured concave liners,<br />

hydraulic tank instrumentation system and<br />

the unique Automative Setting Regulation<br />

System.<br />

“In addition, delivery time was one of<br />

the key points in securing the order. The<br />

installation time was the shortest recorded<br />

at Tata Steel for a job of this magnitude,” he<br />

added.<br />

“The Sandvik CG820 primary gyratory<br />

crusher supply will be a reference point of<br />

major value, since it is the first crusher of this<br />

type to be supplied by Sandvik and has been<br />

supplied to the world-renowned company,”<br />

Paul said.<br />

Moreover, the overall job of dismantling,<br />

installation and commissioning was a success<br />

in terms of time, he added.<br />

Sandvik is a global industrial group<br />

with advanced products and world-leading<br />

positions in selected areas – tools for metal cutting, equipment<br />

and tools for the mining and construction industries, stainless<br />

materials, special alloys, metallic and ceramic resistance<br />

materials as well as process systems. The company has<br />

representation in 130 countries with annual sales of nearly<br />

SEK 72,000 million.<br />

Sandvik Mining and Construction is a business area within<br />

the Sandvik Group and a leading global supplier of equipment,<br />

cemented-carbide tools, service and technical solutions for the<br />

excavation and sizing of rocks and minerals in the mining and<br />

construction industries.<br />

COAL INSIGHTS 62 October 2010

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