We are offering spray machine 1.usage: used for circuit board soldering dish and through hole surface tin-spray, helpful for circuit board through backflow furnace, welding-assisting of wave furnace, welding-assisting of manual welding and surface anti-oxidation;2.tin-spray surface: 450 x 450 mm double sided board; (max);3.process: oil removing, micro erosion, hot air leveling, tin-spray;4.tin plate thickness: 0.8mm-3.5mm;5. plate thickness: 0.5-3.2mm;6. tin lead heating and air warming: 230c-260c;7. tin addition amount: 100kg;8. tin-spray air consumption: 1.9m3/min-3m3/min;9. input power: ac380v/50hz/40kw;10. tin-spray air-knife pressure: 0.8kg/cm2-3kg/cm2;11. air-knife temperature: 350-400c;12. overall dimension: 1600mm1200mm2550mm;13. net weight: 500kg.