On June 3, 2026, information from the State Intellectual Property Office showed that Shandong Linglong Tire Co., Ltd. applied for a patent titled “A high-durability all-steel engineering radial tire bead structure.”
The application publication number is CN122100703A, the application number is CN202610411911.6, the application publication date is May 29, 2026, and the application date is March 31, 2026.
The following is a display of related pictures:
The patent summary shows that the invention belongs to the field of tire manufacturing technology. The disclosed high-durability all-steel engineering radial tire bead structure includes a carcass, a steel wire wrapper, a mouthpiece, an airtight lining layer, a nylon reinforcement layer, a wire ring and an asymmetric aramid-nylon composite textile wrapper.
Through asymmetric wrapping technology, a special asymmetric aramid-nylon composite textile wrapping cloth is used to tightly wrap the traveler, which can significantly enhance the bonding strength and shear fatigue resistance between the traveler and the carcass ply, thereby effectively preventing delamination and wire cutting accidents.
At the same time, the stress distribution is also optimized, allowing the all-steel engineering tires to withstand heavier loads, effectively preventing delamination and wire cutting accidents under heavy loads, high speeds, and harsh road conditions, and is suitable for large engineering vehicles and heavy machinery and equipment.
In addition, it also significantly improves the bead performance of the tire, providing a new idea for the bead structure of all-steel engineering tires.
Linglong Tire was established on June 6, 1994 and listed on the Shanghai Stock Exchange on July 6, 2016.
The company’s registered address is in Shandong Province, and its office address is in Shandong Province and Hong Kong.
Linglong Tire is a leading tire manufacturer in China. Its core business is automobile tires. It has advantages in the entire industry chain and has great investment value.
Linglong Tire’s main business is the design, development, manufacturing and sales of automobile tires. The Shenwan industry it belongs to is automobiles – auto parts – tires and wheels. The concept sectors it belongs to include net-breaking stocks, flying cars and procyclical.
In 2025, Linglong Tire’s operating revenue will reach 24.642 billion yuan, ranking 4/22 in the industry, higher than the industry average of 10.395 billion yuan and the median of 5.119 billion yuan, and far lower than the 44.956 billion yuan of first-place Zhongce Rubber and the 36.792 billion yuan of second-place Sailun Tire.
Among the main businesses, tire product revenue was 24.475 billion yuan, accounting for 99.32%, and other (supplementary) revenue was 167 million yuan, accounting for 0.68%.
In terms of net profit, it will be 1.369 billion yuan in 2025, ranking 3/22 in the industry, which is higher than the industry average of 701 million yuan and the median of 294 million yuan, but lower than the 4.147 billion yuan of first-place Zhongce Rubber and the 3.617 billion yuan of second-place Sailun Tire.
Shandong Linglong Tire Co., Ltd. has recently applied for a number of patents. The following is a partial display of patent status:
For example, “A method for quickly extracting and detecting the content of various terpenes and sterols in rubber grass”, “A tire with low rolling resistance, high control and low resistance”, etc.
These patents cover multiple aspects of tire manufacturing and reflect Linglong Tire’s continuous investment and innovation capabilities in technology research and development, helping it maintain its leading position in fierce market competition and provide global customers with better and safer tire products.
