Pneumatic tires are tires that achieve shock absorption and cushioning performance without relying on air pressure. Their core technology principle is to use a highly elastic, high-strength support structure to replace air in bearing loads and providing shock absorption, such as using spokes, honeycomb mesh, or elastic support structures.
Main manufacturing materials include high-performance polyurethane, thermoplastic elastomers, composite rubber and glass fiber (such as Michelin Uptis tires which use composite rubber and resin-filled glass fiber materials), nickel-titanium alloys, and LCRB (lightweight elastic material).
Manufacturing processes involve injection molding, 3D printing (such as the 3D printing technology used in tire manufacturing by brands like Goodyear), and gradient composite processes (used by companies like Jiangxin Technology).
Related patented technologies involve optimization of wheel hub heat dissipation structures and improvement of tire grip.