New production plant for large gears in Friedrichsfeld, Germany
Demand for large gears has risen sharply in recent years. As well as the European markets, there has been a constant rise in demand for extruder gears and gears for the cement industry primarily in the Arab states, the U.S. and Asia. To enable further enhancement of gear production, the Mechanical Drives (MD) Division of Siemens A&D is investing in new assembly capacity in Friedrichsfeld. "With the new capacity at Friedrichsfeld, we are optimizing and expanding our production of large gears and thus creating the best possible conditions for meeting the growing demand for large gears", says Manfred Egelwisse, Head of the MD Division.
Following completion, roller grinding mills will be produced here for the cement or minerals industry with rated load torques up to 4,500,000 Nm. The plant will also produce twin-shaft extruder gears with shaft clearances of approx. 300 mm and a performance of up to 20,000 kW. In addition to these gears, twin-motor drives for the marine sector with 16,000 kW transmitted power per drive shaft will also be produced in the new hall at Friedrichsfeld.
The large machines and gears present a formidable challenge to the floor conveyor vehicles and hoisting gear due to their dimensions and weight of up to 100 tonnes. The new assembly hall features bridge cranes that can cover the entire length of the hall and move loads of up to 150 tonnes. The plant also has seven semi-portal cranes for turning and positioning heavy workpieces. Two assembly pits with ergonomic heights ensure safe working, especially on the gears for twin-motor drives for ships.
The MD Division is thus continuing to pursue the concept of separating assembly and test stand from the remaining parts manufacture, resulting in an application-oriented assembly and test stand unit for large gears.
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