On February 5th, the large-specification Ф5×35m rotor sail, jointly developed by SunRui Environment and SunRui Composite Materials, was officially completed, and both parties held a product inauguration ceremony. The successful development of this product fully demonstrates SunRui Composite Materials' technical strength and industrial advantages in the field of composite material new energy marine equipment. It also marks a significant leap forward in China's large-scale marine sail technology, filling a domestic gap in the independent R&D and manufacturing of this type of equipment.

The rotor sail launched this time features an outer cylinder diameter of 5 meters and a height of 35 meters. While achieving ultra-large size and power, the product attains an industry-leading comprehensive energy efficiency level through lightweight design and sophisticated manufacturing processes. Its mass uniformity and dimensional consistency meet top international standards. Based on the Magnus effect, this equipment converts wind energy into thrust to propel the vessel by rotating the cylinder, making it a potent tool for carbon reduction in the current shipping industry.

SunRui Composite Materials leveraged its professional advantages in composite materials and large structural component manufacturing, leading efforts to overcome a series of key technologies, including ultra-large cylinder molding and lightweight structural design. It has established an integrated capability spanning from core component development to complete machine assembly and testing. The collaboration between SunRui Environment and SunRui Composite Materials represents a practical achievement in complementary advantage utilization and collaborative innovation. Since the project's inception in 2025, the joint teams have worked together on research, integrating their respective technological expertise in the fields of wind power and marine environmental protection equipment, achieving comprehensive results covering the entire chain from system design to development and validation.

Against the backdrop of the global shipping industry's low-carbon transformation, rotor sail technology has become a key development focus for the industry, boasting broad market prospects. The successful completion of the world's largest rotor sail further consolidates SunRui Composite Materials' leading position in the high-end composite material new energy equipment sector. Looking ahead, the company will continue to leverage its technological advantages, accelerate the industrialization and market application of this equipment, serve global customers with high-performance, high-reliability products, and contribute solid strength towards achieving China's "carbon peak and carbon neutrality" goals.