HP-730 Automatic PCB Conformal Coating Machine | Automated SMT Coating System | Dual-Valve Configuration | Flexible Programming The HP-730 Automatic PCB Conformal Coating Machine is a production-oriented automated coating system developed for manufacturers requiring stable, repeatable, and efficient conformal coating of electronic assemblies. Designed for integration with SMT and PCBA production lines , the machine combines automatic PCB transport, high-speed servo motion,