Tianjin Saixiang Science and Technology Co., Ltd. announced on March 20 that it has successfully developed a one-shot molding machine for the 49/51-inch all-steel giant radial tires, specifically designed for its European tire company to produce the 33.00R51 model. This groundbreaking equipment is the first of its kind in the world, featuring complete independent intellectual property rights. It not only fills a critical gap in China's domestic market but also marks a significant global breakthrough. The achievement highlights that China’s production technology for giant radial tires has reached an international standard, and more importantly, it represents a major leap forward for China’s rubber machinery industry, moving from imitation to innovation.
Molding machines are considered the most essential equipment in the production of giant radial tires. Currently, only a few global tire giants such as Michelin, Bridgestone, Goodyear, and Yokohama possess the technology and equipment for manufacturing these massive tires. Their molding processes typically rely on two-stage methods, with the technical details strictly protected. In recent years, several Chinese rubber machinery companies have attempted to develop similar equipment, but most have relied on foreign technologies and followed the two-step approach. However, Tianjin Saixiang chose a different path—opting for original innovation from the start. By adopting a one-step molding process without any prior references or information, the company spent nearly two years overcoming numerous challenges, ultimately breaking the foreign monopoly and setting a new precedent for China’s rubber machinery industry.
The newly developed equipment spans approximately 1,500 square meters, stands over 9.2 meters tall, and weighs around 800 tons. It is fully computer-controlled with closed-loop systems, ensuring high precision and efficiency. All molding operations are performed on a rail, significantly improving tire quality and productivity. According to tests, the giant radial tires produced using this equipment have a diameter of about 3 meters, with a perimeter error of just 0.72 millimeters and a weight error controlled within 1.5%, meeting all technical specifications. During the development phase, the team solved multiple key technical challenges, including the manufacturing of molding drums, spindle material formulations, and capsule turn-up techniques, resulting in over ten invention patents. When the machine completed its first successful capsule turn-up, the entire team celebrated enthusiastically.
Industry experts believe that the successful development of this world-leading one-step giant radial tire molding machine will play a crucial role in helping China’s tire industry gain a stronger foothold in the global market. The equipment has already received seven orders and has passed the European CE certification. Additionally, this project has been recognized as one of the top 20 industrialization projects for independent innovation in Tianjin this year. With continued progress, this innovation could mark a turning point for China’s rubber machinery sector on the global stage.
Bopp Film,Pearlized Bopp Film,White Bopp Film,Bopp Thermal Lamination Film
HUARUIDA PACKING MATERIAL CORP., LTD. , https://www.buybopps.com