The P4 PU/UV + water-based reciprocating spray production line is designed for high-efficiency, multi-sided coating of planar or shaped workpieces. Featuring quick-spraying and fast-drying capabilities, it supports direct packing and large-volume production. This versatile system can handle putty, primer, and top coating processes, achieving uniform five-side coating with the same color, ensuring high-quality finishes and consistent results. The production line consists of a dust cleaner, reciprocating spray machine, 10-meter and 12-meter infrared leveling machines, translation machine, and a six-lamp UV curing system. Ideal for industrial-scale applications, the P4 line delivers precise coating, superior adhesion, and enhanced production efficiency while reducing labor costs.