Hai Ha M&S said it balanced a fan blade assembly found to be severely unbalanced, using material removal and addition to bring it within the required tolerance. The yard said the work was carried out with a computerized dynamic balancing machine to reduce vibration and improve operating efficiency.
Hai Hà M&S said the performance and service life of a rewound motor depend heavily on heat management. The company pointed to slot fill density and vacuum pressure impregnation as the two main factors affecting cooling and insulation.
Hai Ha Marine & Ship Repair Service Co. Ltd, based in Haiphong, says it handles repair and maintenance work for ships, floating structures and related equipment. The company says it has more than 10 years of experience and works on engines, propellers, hulls, electrical systems and metal fabrication.