The frame is considered the largest, in diameter, ever manufactured by the company at its Taubaté unit.
It weighs about 156 tons with approximate measures of 23m diameter and 4.3m height.
Belo Monte project director Marcelo Ferrarezi said: "The Belo Monte project has been marked by countless production differentials to Alstom.
"To our team, these landmarks are motivational and important to maintain the quality and efficiency of the delivery of our projects."
In January 2012, Alstom, in consortium with Voith and Andritz, was selected to deliver 14 Francis turbine-generator sets of 611MW each and six Bulbo turbine-generator sets.
Alstom will deliver seven Francis turbine-generator sets, hydromechanical equipment, armored busbars and gas insulated substations to the eighteen generator units of Belo Monte plant.
