Rocket men
Konecranes has refurbished the rotary crane at a test facility for rocket drives at the German Aerospace Centre.
The facility tests the upper station drives for the Ariane launch rockets. The rotary crane on the building roof plays an important role in preparing these tests. The ageing crane system was in need of an upgrade. Konecranes provided a solution that not only made the crane more efficient and safer but also reduced operating costs using the latest in electrical systems and drive technology.
Over the years, exposure to the elements had a heavy impact on the rust-protection and the steel structure. For this reason, Konecranes specialists first dismantled the counterweight of 5.5. tonnes before removing the main structure of the 13.8-tonne crane. This was removed with the help of two truck-mounted cranes and placed on the terrain surface. For the transport, a special screwed joint was fitted between the boom and the 3.2-tonne base section for safety and stability. In a preparation hall, crane experts removed the remaining paint layer by sandblasting. Then following a comprehensive welding program, the steel structure was successfully reinforced and statically recalculated. Finally, the crane system received an entirely new coat of paint to protect it from the elements. Now back and installed in the test facility, the rotary crane is now able to move loads of up to 5 tonnes with an outreach of 15 metres. Additionally, with an outreach of 10.3 meters, it is now possible to transport loads of up to 7.5 tonnes.


