Ihnen Stahl- und Metallbau GmbH realises demanding steel construction projects all over the world. The robot system welds big components - in this case platforms for wind energy converters - with a weight of up 5 tons and a length of 7.5 meters. The 7-axis welding robot has a large working envelope. This facilitates and accelerates the welding of the complex components because the robot can be easily guided around corners or into niches.