Siemens awarded winder contract

A consortium consisting of the

Industrial Solutions and Services Group (I&S) and Siemag, Netphen, has received an order from Xinji Energy to supply two electric winders for the Liuzhuang coal mine.

Siemens said in a statement that it would be responsible for the electrical equipment, which includes motors with converters, as well as the associated power supply, the closed-loop control system and the safety equipment. The new winders are to start operating in April 2006.

The production shaft of the Liuzhuang mine to the north of Hefei in Anhui province has a production capacity of around eight million metric tons of coal per year. The main shaft is eight metres in diameter and is being equipped with two dual-compartment skip hoisting systems, each with a payload of 40 metric tons. The winding speed is 12 metres per second, which is just under 50 kilometres an hour. The winding tower in which the winders are to be accommodated is around 70 metres high and the haulage distance is 775 metres.