This project is considered, according to industry experts, one of the most prominent turning points in the history of Iranian heavy industries, because it represents an overcoming of technical dependency abroad, especially in the field of power plant equipment.

The result of 14 years of research and development
Majeed Rabbani, head of the research and development department at the producing company, said that the project is the result of fourteen years of continuous research and engineering work, stressing that the design and manufacture of the national rotor was entirely localized, with the localization of the production of a huge valve body with a diameter of 42 inches for the first time within the country.

Breaking dependency on foreign companies
Rabbani explained that the main motivation behind this project was the need to reduce dependence on foreign companies, such as the German “Zarschmid”, which had a monopoly on the manufacture of axial columns for power stations.

He added that the interruption in the supply of these sensitive components threatened to stop the operation of power plants and exacerbate the energy crisis, which required, since 2010, the development of a comprehensive national plan to establish a complete local production chain.

Technical challenges and high-precision metallurgy
The head of research and development indicated that the manufacture of this rotor faced complex engineering challenges, especially in producing a special type of steel known as clean steel, which is characterized by high fatigue resistance.

He stated that all stages of manufacturing, from smelting, casting, blacksmithing and heat treatment to final mechanical operation, were completed within the company while adhering to international standards in quality and industrial safety.

Innovations in overcoming technical limitations
The Iranian engineering team relied on innovative designs to overcome the limitations of available furnaces. A raw piece weighing 120 tons was cast in a furnace whose capacity did not exceed only 50 tons, which allowed the production of a final piece 12 meters long and weighing 53 tons, while achieving complete homogeneity in its mechanical properties.

Gradual development towards greater capabilities
Rabbani explained that this achievement comes as part of a progressive plan to develop Iranian rotors, as their capacities have developed in recent years from 45 to 55, then 185, reaching 200 megawatts, with an increase in weight from 37 to 53 tons.

This development indicates the growing technical and material capabilities of national companies, and the possibility of manufacturing larger power units in the near future.

Iran is among the elite industrial countries
The Iranian official confirmed that his country is now among only ten countries around the world that possess the technology to manufacture these strategic components, indicating that the countries that own the technology keep it in complete secrecy and do not export it, which makes its possession a crucial element in ensuring national energy security.

Direct contribution to the energy balance
Rabbani revealed that last year the company delivered four rotors with a capacity of 185 megawatts, which were operated in stations inside the country, and this year it will deliver four rotors with a capacity of 200 megawatts to the “MPNA” group, which contributed to reducing the electrical deficit and improving the stability of the energy network.

A symbol of national technical sovereignty
This achievement is a vivid example of the ability of national expertise to achieve industrial independence despite sanctions, and a clear message that Iran is moving towards achieving comprehensive technical sovereignty in vital sectors, most notably the electric energy sector, which constitutes the pillar of economic development in the country.