Linglong Tire achieves major breakthrough

October 21,2025

On October 18, Linglong Tire achieved a major breakthrough at its Changchun factory β€“ the first independently developed 59/80R63 "Linglong" brand giant OTR tire rolled off the production line successfully.

The roll-off of the 59/80R63 marks Linglong's official entry into the ranks of the few companies in the world that can produce 63-inch all-steel giant tires. The tire has a diameter of over 4 meters and a single tire weight of over 6 tons. It is currently the largest tire product in the world. It is mainly used in large open-pit mining dump trucks to meet the harsh environmental conditions of complex, changeable and high-intensity use in mining areas.

As a company that has been deeply engaged in the off-road tire field for nearly 40 years, Linglong has continued to expand its three major product lines of engineering machinery, agricultural and industrial tires since producing its first agricultural machinery bias tire in 1987, and has accumulated profound technical expertise. During the research and development of 59/80R63, Linglong overcame a series of key technical difficulties in giant OTR tires in terms of structural design, material formulation, process tooling, etc., demonstrating strong independent innovation capabilities.

The 59/80R63 tire rolled off the production line not only fills the gap in Linglong's 63-inch giant OTR tire field, but also means that the company has the comprehensive strength to compete with world-class tire companies in the giant tire field. The maximum load capacity of a single tire of this product is 100 tons, and it can be adapted to mainstream large-scale mining dump trucks such as Caterpillar 797 and Komatsu 980.

In terms of technical details, the tire adopts a high-saturation pattern design, combined with a multi-spoke heat dissipation groove structure and an ultra-low temperature vulcanization process. While improving the heat dissipation efficiency, it significantly enhances the rubber's cut resistance and durability, effectively extending the tire's service life under extreme working conditions.

In order to meet the demands of the off-road tire market, the company began planning a comprehensive upgrade of its off-road tire production capacity as early as 2022. In the company's "7+5" strategic global layout, it implemented a "3+3" off-road tire industry layout, that is, off-road tire production capacity was planned in three production bases in China and three overseas production bases. The successful rollout of the 59/80R63 is a key step for Linglong to implement its "3+3" global off-road tire strategic plan.

 

DLFTECH is a professional equipment marketing & service company built by a senior R&D and marketing team in the tire & conveyor belt equipment industry. Benefiting from the rapid follow up of the international rubber industry's process re-engineering and the demand for industrial intelligence, DLFTECH, the best of the best, has rapidly developed into a new star in the international rubber machinery industry.

If any tire or conveyor belt industry customers need such as tire uniformity rectifier, tire mold laser cleaning system, anti-puncture tire coating system etc., please feel free to contact info@delphygroup.com.


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