Long March 8A Rocket Successfully Completes Maiden Flight! Rayming Laser's Metal 3D Printing Technology Empowers the Manufacturing of Critical Components!

On February 11, 2025, the Long March 8A carrier rocket successfully deployed the Low-Earth Orbit 02 satellite constellation into its designated orbit, marking a triumphant mission. This milestone signifies the expansion of China's new-generation launch vehicle family, as the Long March 8 series advances toward systematization, establishing a structured payload capacity of 5 to 7 tons for sun-synchronous orbits. This achievement significantly enhances the nation’s capability for medium- and low-Earth orbit satellite network deployments.  

The Long March 8A rocket is an optimized variant of the Long March 8, specifically developed to meet the demands of medium- and low-Earth orbit satellite constellations. The Beijing Aerospace Propulsion Institute, under the China Aerospace Science and Technology Corporation (CASC), spearheaded the development of the core second-stage YF-75DA engine, which played a crucial role in the rocket’s successful launch. To meet the overall payload requirements, the thrust of the YF-75DA engine needed to surpass that of its predecessor, the YF-75D, by more than 10%. The research and development team focused on thrust augmentation, closed-cycle pressurization, and operational maintenance, achieving breakthroughs in multiple key technologies to ensure the mission’s success.  

Rayming Laser actively participated in this ambitious project, providing 3D-printed critical components for the YF-75DA engine. Aerospace engine parts often feature large, deformation-prone complex structures that demand exceptional precision and mechanical integrity. Traditional manufacturing methods struggle with prolonged production cycles, high processing difficulty, and low material utilization. Metal 3D printing, however, transcends these limitations, enabling small-batch, multi-variety, integrated, and lightweight production. Rayming Laser’s technical team conducted an in-depth analysis of the structural characteristics and processing requirements of the components, utilizing LiM-X400 and LiM-X650 equipment for manufacturing. The production was completed on schedule, and rigorous testing confirmed that the fabricated components exhibited superior dimensional accuracy, outstanding performance, and high consistency, ensuring their reliability under extreme conditions. These parts successfully passed user validation.  

As a revolutionary industrial manufacturing technology, metal 3D printing plays a pivotal role in accelerating aerospace product development, expediting design iterations, and enhancing overall performance. It further propels advancements in cutting-edge aerospace manufacturing. Since its inception, Rayming Laser has introduced over ten models in the LiM-X series of selective laser melting (SLM) equipment, with formation sizes ranging from 150mm to 1500mm and a net shaping height exceeding 2500mm. With extensive expertise in high-quality, high-efficiency production of large-scale components, the reliability and stability of Rayming Laser’s equipment have been widely validated across the industry.  

The TCT ASIA 2025 exhibition will be held from March 17 to 19 at the National Exhibition and Convention Center, Shanghai. Rayming Laser will showcase cutting-edge aerospace applications and invites you to visit Hall 7.1, Booth F30, where we will explore the latest advancements in metal 3D printing and industrialized solutions together.  

Source: Rayming Laser