Storebaelt East Bridge, Denmark

HMV designed and manufactured the complete Air Spinning Equipment for Coinfra S.p.A. of Italy The wire was supplied in coils and transferred to drums on the Wire Drum Units. During unreeling the drums were powered by DC-motors and electronic regulators kept the wire tension constant. The control system was PLC based and included a PC-based monitoring and report system. The system gave a very high spinning capacity completing the spinning 46 days in front of the optimistic accelerated schedule. All measures were taken to achieve a high availability. The availability was calculated by Our client to more than 99%!
20.000 tons of wire was spun in 146 days under windy and unfavourable weather conditions.
The spinning was carried by the Controlled Tension (also known as the Low Tension) method.