in China When high reliability and power are needed, the mining company Xishan Jinxing Energy Co. Ltd relies on the fill-controlled 866 TPKL fluid coupling from Voith. A total of three fluid couplings are used underground in the powerful 4.8 MW drive of the main belt conveyor in the Xiegou No. 12 coal mine in Shanxi Province, China. Three 1600 kW (1900 HP) drives power the 1900 metre (6200 feet) long main inclined belt conveyor. This conveyor transports 3 800 metric tons of coal every hour. Powerful and reliable couplings are required. For the mine operator, the 866 TPKL fluid coupling from Voith is the best solution on the market. Through controlled application of torque, the fluid coupling pretensions the belt slowly and permits smooth conveyor start-up. This controlled soft start protects the belt and driveline components and extends their lifetime. As a result, the Voith fluid coupling reduces unplanned downtime – the operator benefits from lower maintenance costs and…

Voith recently delivered 36 fluid couplings for an iron ore distribution center in Malaysia. Starting in 2014, the couplings will be used in the drives of 16 belt conveyors supplied by the BEUMER Group. For each of the belt conveyors Voith has offered just the right fluid couplings. The supplied Voith hydrodynamic fluid couplings are applied to drives ranging in powers from 200 to 800 kW. They have been selected to softly start and protect all conveyor system components and minimize unplanned system downtime. Voith fluid couplings have a rugged design and are well suited for use under the most extreme environmental conditions. They dampen torsional vibrations in the driveline and protect it against overload. This extends the lifetime of the entire system. Voith has offered just the right fluid couplings for each of the 16 belt conveyors. The belt conveyor drives are equipped with TVVS-type couplings. Voith is delivering special TVVS designs to match the start-up…

Developed especially for the drives on open-pit mining belt conveyors, the latest fluid coupling technology from Voith provides a lot of benefits. Thanks to the innovative XL blade wheel profile, the TurboBelt 780 TPXL coupling transmits twice the power previous couplings of similar size could achieve. It is designed for 6- and 8-pole induction motors operating at speeds of 900 to 1,200 rpm. The start-up with precisely-controlled introduction of torque not only protects the belt, but also the entire driveline. Even overloaded belt conveyors are started reliably. Start-up times of up to several minutes can be individually set in the control system. In May 2012, the initial start-up of this new fluid coupling was in one of the biggest sea terminals in northern Brazil, where iron ore is shipped worldwide. In order to handle the increasing amount of iron ore, the operating mining company decided to install three TurboBelt 780 TPXL couplings in the drives of a 1,451 m…