The continuous PU PIR sandwich panel manufacturing line is a fully automated, streamlined production system tailored for efficient composite panel fabrication, integrating all core production procedures into one uninterrupted workflow. This advanced production equipment starts with continuous feeding and precise positioning of upper and lower surface materials, followed by accurate proportioning, high-pressure mixing and uniform injection of polyurethane raw materials. The materials then enter the synchronous pressing and constant-temperature curing unit, where foaming, laminating and solidification are completed steadily to form an integrated panel structure with tight adhesion and uniform core density. Featuring flexible parameter adjustment, the line can adapt to diverse panel thickness and performance requirements, effectively reducing manual operation and production errors. It delivers panels with stable structural rigidity, excellent thermal insulation and flawless surface flatness, making it ideal for large-scale, consistent and high-efficiency production of building insulation and enclosure panels.