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Company Profile
Research and Development Journey in the Thermal Power Industry
1972
China has successfully developed its first domestically produced carbon brush for thermal power plants—D172—marking a key breakthrough in core performance. The product can stably meet the demanding requirement of a linear speed up to 50 m/s, filling a critical technology gap in carbon brushes for small-scale generator sets within China. Initially designed to complement 100,000 kW and 200,000 kW-class units, this innovative product lays a solid foundation for the early development of China's indigenous thermal power equipment.
1980
D172 material has undergone iterative upgrades. By optimizing the graphite matrix formulation and molding process, its current-carrying capacity and wear resistance have been significantly enhanced, enabling broader application scenarios—now extending to 30MW-class generating units. This milestone marks a crucial step forward for domestically produced thermal power carbon brushes, moving them from being "usable" to truly "highly reliable and efficient."
Thermal Power Industry
1990
Benchmark against international standards to refine the technological system.
1993
To meet the demands of higher-power thermal power generating units, China has introduced the Morgan NCC634 carbon brush specifically designed for thermal power applications, originally developed in the UK. This product, renowned for its exceptional high-temperature stability and uniform current distribution, has been successfully integrated into mainstream thermal power units ranging from 300,000 kW to 600,000 kW. During operation, it has demonstrated remarkable characteristics such as extended service life, minimal wear, and reduced failure rates, providing an internationally advanced technical benchmark for the domestic industry. In this phase, through structural analysis of the imported product, performance testing, and the accumulation of application data, a solid technological foundation has been laid for the subsequent independent innovation of domestically produced carbon brushes.
Thermal Power Industry
2016-2017
Mega has initiated a deep technical collaboration with a renowned carbon technology company, focusing on addressing the critical "bottleneck" issue plaguing domestically produced high-end carbon brushes for thermal power plants. Together, they have jointly developed China's first specialized simulation test bench dedicated to thermal power plant carbon brushes. After three years of continuous R&D and multiple rounds of operational validation, the team successfully mastered the precision control technology for natural graphite materials, resulting in the launch of T3, a domestically produced carbon brush based on natural graphite. This groundbreaking product boasts remarkable advancements in core performance: its linear velocity compatibility has been boosted to 60 m/s, while its current-carrying density reaches up to 8 A/cm²—exceeding the levels of comparable international products. As a result, the project has effectively broken the long-standing reliance on imported high-end carbon brushes for thermal power applications.
2021
T3 carbon material has achieved a second-generation upgrade, introducing nano-scale reinforcing phases to optimize interfacial bonding strength. This enhancement further boosts its high-speed wear resistance, enabling the product to now support line speeds up to 80 m/s—making it the first domestically produced carbon brush capable of meeting the demanding requirements of ultra-high-speed thermal and power applications, thus paving the way for deployment in million-kilowatt-class generating units.
Thermal Power Industry
2023
T3 carbon brushes have been introduced to Shanghai Electric's specialized simulation test bench for on-machine feasibility verification. After passing rigorous simulated operating condition assessments, they were the first to complete installation, assembly, and trial runs on excitation equipment, marking a critical leap from the "laboratory" directly to the "engineering site."
2024
The T3 carbon brushes have officially been put into commercial operation in Shanghai Electric's 1000MW-class thermal power generating units. Operational data shows that their average wear rate is below 0.1mm per thousand hours, and the current distribution deviation is less than 5%. These performance metrics fully meet the stringent reliability requirements of large-scale power plants, marking the successful engineering implementation of domestically produced high-end carbon brushes for thermal power applications.
2025
T3 carbon brushes have entered the mass-delivery phase. Thanks to their stable performance and excellent cost-effectiveness, they now account for over 60% of domestically produced carbon brushes in China's thermal power market. This milestone marks the official transition of domestically made thermal power carbon brushes—from "replacing imports" to "dominating the market"—and provides a critical core component that supports China's efforts toward independent development of thermal power equipment.
Product Introduction
Application Cases
Partner Organization
Shanghai Electric Group Shanghai Electric Machinery Factory
Shanghai Electric Group Shanghai Electric Motor Factory Co., Ltd. is a large-scale, comprehensive motor manufacturing enterprise with modern production facilities, operating under the umbrella of Shanghai Electric (Group) Corporation. The company traces its origins back to the Shanghai Electric Motor Factory, established on December 1, 1949. Since the 1950s, the factory has been recognized as a key backbone enterprise in China's national motor manufacturing industry. Its primary product lines include steam turbine generators, large- and medium-sized AC motors and generators, DC motors and generators, wind turbines, and more. These products are widely utilized across various industries such as thermal power generation, nuclear power, wind energy, metallurgy, water conservancy, petrochemicals, mining, machinery, shipbuilding, scientific research, transportation, cement production, papermaking, sugar refining, light textile manufacturing, environmental protection, municipal engineering, and new energy sectors. The company's production of large- and medium-sized AC and DC motors accounts for one-third of the entire national motor industry. In terms of both production scale, market share, and overall economic performance, the company consistently ranks among the top enterprises in the same industry nationwide. Moreover, its products are exported to countries around the world.
Harbin Electric Machinery Co., Ltd.
Harbin Electric Group's Harbin Electric Machinery Factory Co., Ltd. was established in 1951. As a core subsidiary of Harbin Electric Group Co., Ltd.—a state-owned key enterprise under central management that plays a vital role in safeguarding national security and the lifeline of the national economy—the company is located in the picturesque "Ice City and Summer Capital," Harbin. The company integrates science, industry, trade, and services, offering global customers a comprehensive range of power generation equipment and supporting control systems for hydropower, thermal power, nuclear power, gas-fired power, pump systems, and new energy solutions. It also provides full-lifecycle product support and diversified customized services, making it a leading Chinese manufacturer and service provider renowned for its advanced technology and high-quality equipment.
Dongfang Electric Corporation (DEC)
Dongfang Electric Corporation (DEC). (hereinafter referred to as Dongfang Motor or the Company) was established on October 13, 1958. It is a wholly-owned core subsidiary of China Dongfang Electric Corporation, a key state-owned enterprise under the management of the central government that is involved in national security and the lifeline of the national economy. It is a major technical equipment manufacturing backbone enterprise in China specializing in the research, design and manufacture of large-scale power generation equipment, and a major global supplier of power generation equipment, clean energy products and services. The company mainly engages in the research and development, design, manufacturing and service of hydroelectric generating units, thermal energy generators (including coal-fired, gas-fired and nuclear), wind turbines, AC (DC) motors, synchronous condensers, complete sets of energy-saving and environmental protection equipment, pumps and other equipment, as well as power station renovation, complete sets of power station equipment installation, maintenance and repair and other businesses. It holds multiple qualifications and capabilities, including general contracting for construction engineering, general contracting for power engineering, general contracting for mechanical and electrical engineering, general contracting for municipal public works, and professional contracting for environmental protection engineering. We can provide users with EPC general contracting solutions for small and medium-sized thermal power plants, waste-to-energy power generation, biomass power generation, wind power generation, photovoltaic power generation and cogeneration, intelligent diagnosis of power generation equipment, solid waste circular economy industrial parks, water environment governance projects, comprehensive energy services and management, etc.