Gauteng Business News

Send  Share  RSS  Twitter  31 Aug 2011

ENGINEERING: Condra Cranes Service World’s Tallest Headgear


Recent Gauteng Business News

A high-lift unit from Condra Cranes has been installed atop the world’s tallest steel headgear.

The technically advanced unit, with a lift height of 83 metres, will service the sheave wheels at Goldfields’ recently commissioned South Deep Twin Shafts complex near Westonaria, Gauteng.

Eighty-three metres is more than three times the international classification of a lift height as being very high.

Condra’s managing director, Marc Kleiner, said that the order for the Goldfields hoist had been driven by a specific requirement for the type of advanced engineering that his company is able to deliver.

“We have a clear competitive advantage in the high-lift segment of the market,” he said. “I believe it is accurate to claim that there is no other company in South Africa with Condra’s experience and capability in high-lift hoist manufacture.”

Condra Cranes High-Lift Crane Technology

At the heart of Condra’s high-lift crane technology is the company’s K-Series hoist, proven over many years as dependable and durable under the conditions of increased mechanical strain associated with high-lift applications.

The modular design of the K-Series allows rapid modification to specific high-lift requirements, resulting in delivery times that are usually the shortest available.

In the case of the Goldfields order, only the rope drum had to be manufactured from scratch, with all other components being drawn from stock.

What Condra Cranes are Made of

Condra uses silumin rotor cores to enhance K-Series motor-starting torque in the high-lift role, and has developed variable speed control levels on the drives to enable precise load positioning even on lifts of 100 metres and more.

Hoist speeds of between zero and 18 metres per minute, and travel speeds of between zero and 200 metres per minute, are possible.

Condra’s Goldfields order followed a previous contract with the mining house for a 66-ton overhead winder house crane from Condra Cranes.

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