... energy use 3.Digital controls 4.Compact size High quality digital melting furnace machine NAP-MF-HK4 DetailsPower supply: 380V/50/60Hz ... Net weight: 45KgFeatures1,MM-F Series is advanced melting equipment for gold, silver, copper and other non ferrous metal melting. ... load, 24 hours continuous working.6,Quick temp rising, electricity saving, low melting cost with high cost efficiency.7,Cabinet casing, ...