Aerospace lubrication highlights China's lubricant technology strength

The "Chang'e-1" lunar exploration satellite was successfully launched on October 24, marking a historic moment for the Chinese people as their long-standing dream of reaching the moon became a reality. This milestone not only symbolized China's growing technological prowess but also highlighted its ambition to play a leading role in space exploration. Compared to the "Shenzhou VI" mission, Chang'e-1 presented unprecedented technical challenges, particularly in terms of the extreme conditions it had to endure. Great Wall Lubricants once again played a critical role, ensuring smooth operation of the spacecraft by overcoming complex lubrication issues. This achievement demonstrated the company’s commitment to independent research and innovation, setting a new standard for China's lubricant industry. It also reinforced the country's broader strategy of advancing aerospace technology through scientific breakthroughs and strengthening foundational research. Aerospace lubricants differ significantly from their civilian counterparts. They must maintain stability and reliability under harsh conditions such as extreme temperature fluctuations, high radiation, strong oxidation, and vacuum environments. Only a handful of countries, including the United States and China, possess the capability to produce such specialized lubricants. With the development of these technologies, Great Wall Lubricants has reached international standards, positioning itself as a key player in the global aerospace sector. Experts at Great Wall Lubricants were both excited and nervous during the launch of Chang'e-1. The company has been supporting China's space program for nearly 50 years, having provided essential lubrication solutions for the nation's first rocket, artificial satellite, and the Shenzhou-5 and Shenzhou-6 missions. According to Zhao Jiang, a senior lubricant engineer, Chang'e-1 posed far greater challenges than Shenzhou-6, with new environmental factors that had never been encountered before. The satellite operated in lunar orbit for an entire year, making it one of the most demanding missions in China's space history. In spaceflight, maintaining a tight seal is crucial. In 2003, Great Wall Lubricants developed high-performance greases capable of handling both solid and liquid lubrication needs. These products provided excellent sealing and adhesion, playing a vital role in the spacecraft's co-rotation reducer. During rocket launches, the fuel used—such as liquid hydrogen and liquid oxygen—contains strong oxidants that require special lubricants to withstand their corrosive effects. These technologies are rare globally, and with the advancement of aerospace lubricants, China has positioned itself at the forefront of this field. "We will never let lubricants become a limiting factor for China's space industry," Zhao Jiang emphasized. He added that the current space lubrication development plan includes at least a decade of forward-looking vision, reflecting the guiding principles of sustainable scientific progress. Great Wall Lubricants has developed a comprehensive range of products tailored for China's aerospace needs, including fluorine-based greases, instrument oils, precision bearing oils, and harmonic reducer greases. These products are technologically advanced and internationally competitive. As one of the world's top lubricant brands, Great Wall Lubricants has broken the monopoly of foreign companies in the high-end automotive market. Its success has not only boosted China's lubricant industry but also provided cost-effective, locally adapted products for consumers. The application of aerospace lubrication technology has also helped Great Wall Lubricants capture a significant share of the high-end market. For example, space-grade precision bearing lubricants have been used in gyroscopes on large ships, while synthetic oil technologies developed for space applications are now widely used in defense, metallurgy, and industrial equipment. Looking ahead, Great Wall Lubricants continues to invest in research and development, building two R&D centers and four national-level laboratories. Over the past two years, the company has obtained numerous domestic and international certifications, and it operates one of Asia's most advanced production systems, including high-speed barrel and canned integrated production lines. With a focus on independent innovation, the development of aerospace lubrication technology is expected to drive further advancements in China's space program and contribute to broader scientific and technological progress. As the country continues to push the boundaries of exploration, Great Wall Lubricants remains committed to supporting its national ambitions and delivering cutting-edge solutions for both aerospace and civilian sectors.

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