Heavy-duty polyurethane casters from Xiamen Yirong Hardware Co., Ltd. combine the strength of metal brackets with the versatility of polyurethane wheels, offering a powerful blend of load capacity, durability, and floor protection. These casters feature steel brackets (3-8mm thick) and polyurethane wheels (85-95 Shore A) that support 500-5,000kg, withstanding heavy machinery, palletized goods, or industrial equipment. Polyurethane’s unique properties—high wear resistance (50% better than rubber), low rolling resistance, and elasticity—ensure smooth rolling over concrete, tile, or asphalt, reducing operator fatigue and protecting floors from scratches. Treads are designed to resist oils, chemicals, and abrasion, making them suitable for factories, warehouses, or logistics centers. Swivel models feature a precision raceway with hardened steel balls, enabling 360° rotation for maneuvering in tight spaces, while optional brakes secure positioning during loading/unloading. These casters deliver the best of both worlds: metal strength and polyurethane versatility.