Five gantry ProfiMills sold

WaldrichSiegen has received an order for five gantry portal milling machines from the Chinese market leader in shipbuilding. China State Shipbuilding Corporation (CSSC) is one of the biggest shipbuilders worldwide. Three machines are being built for Hudong Heavy Machinery Co., Ltd. Two more ProfiMills were ordered by another member of the Chinese group, CSSC-MES Diesel Co., Ltd. WaldrichSiegen surpassed international as well as German competitors in this project. The compact build with a traversing portal and the flexibility of the machine in particular were deciding factors for the customer.

The ProfiMills are equipped with numerous milling units for machining different types of motors. In the future, they will be processing major components of Diesel engines, base plates and A-frames, in the customers' newly-built production sites. Processing components of such a large size is always a challenge. The required tolerances are in the area of less than 0,02  mm. A major difficulty is the processing of bearing shells, up to 13 depending on the number of cylinders, which must be perfectly aligned in order for the crankshaft to work flawlessly. Another challenge is the processing of crosshead guides. The milling machines are up to these challenges: the components are completely machined in a precise and efficient way

Specifications

• Passage width between the columns: 7  m (ProfiMill 7000, 2 machines) resp. 6 m (ProfiMill 6000, 3 machines)
• Passage height: 6,5 m - 8 m
• Milling performance: 120 kW
• Torque: up to 10.000 Nm (depending on milling unit)
• Milling units: 7-12 per machine, standard milling units (vertical, horizontal and universal milling units) as well as custom-built ones for processing specific motor types