Specially built for polyurethane roller casting in the printing industry, widely suitable for high-speed printing equipment such as offset printing, gravure printing, flexo printing and UV printing. It can stably produce special accessories such as UV ink rollers and offset rollers, meeting the production requirements of wear resistance, ink corrosion resistance, high elasticity and uniform ink transfer, effectively ensuring clear printing patterns, no ink leakage and no scratches, and adapting to the efficient and stable operation of printing production lines.