Compact Electric Induction Melting Furnace LSZ-15 15kw 3kg 10kg Gold Silver Jewelry Casting Machine

This Compact LSZ-15 induction melting furnace is a 15kw medium frequency IGBT melting unit developed for jewelers, precious metal workshops and small casting laboratories that need a dependable electric furnace for gold, silver, copper and their alloys. The machine combines a compact control cabinet with a fast-heating crucible assembly, allowing operators to melt 3kg of steel or up to 10kg of gold, silver and copper in a single batch. Thanks to IGBT inverter technology, the furnace reaches melting temperature quickly while drawing only 18A from a standard three-phase 380V supply, which keeps workshop installation simple and operating cost low. Every component is selected for daily jewelry production use, from the water-cooled induction coil to the digital control interface, so the unit performs consistently during repeated melting cycles.

• Compact footprint: The integrated cabinet occupies less than one square meter, ideal for small jewelry benches and studio workshops with limited floor space.
• IGBT energy saving: Compared with conventional SCR medium frequency furnaces, the IGBT power supply saves at least 20 percent energy per melting cycle.
• Fast batch melting: Melts 3kg steel or 10kg gold, silver and copper charge in roughly 20 to 30 minutes depending on the material.
• Magnetic stirring: The electromagnetic field stirs the molten pool automatically, helping flux and oxides float to the surface for cleaner casting.
• Simple operation: One-person operation with clearly marked controls, suitable for both experienced foundry staff and jewelry school trainees.
• Interchangeable crucibles: The furnace body can be changed quickly to handle different capacities, materials and pouring methods.
• CE certified: Electrical design complies with CE requirements for safe use in commercial workshops.

The LSZ-15 compact melting furnace is widely applied in gold jewelry casting, silver bracelet and ring production, dental alloy melting, small sculpture casting and laboratory material research. Jewelry manufacturers use it to melt scrap gold and silver for ingot casting and investment casting, while colleges and research institutes rely on the precise temperature control for metallurgical experiments. It is equally suitable for small foundries producing brass fittings and copper craft items. Because the frequency range can be tuned by changing the coil and compensating capacitor, the same furnace adapts to different melting materials, batch sizes and stirring requirements without buying additional machines.

Each LSZ-15 furnace is packed in an export-grade plywood case with foam protection to prevent damage during sea or air freight. The complete package includes the IGBT power cabinet, crucible assembly, connecting cables, cooling hoses and a detailed English user manual. Every unit is water-tested and run at full power before shipment, and a one-year warranty covers the power supply and main electrical components. Our engineers provide online installation guidance and technical support, and spare parts such as crucibles, coils and capacitors are available for fast replacement.