Testing a Medium-Frequency Induction Melting Furnace With Your Own Metal
Buyers should require a demonstration melt using their own charge material, then confirm capacity, frequency and power claims against agreed acceptance criteria rather than catalog values alone.
Ask the supplier to run a demonstration melt with your actual charge metal, not a generic sample. Because the furnace is rated for melting metal at a nominal melt capacity of 0.5 t, operating frequency of 1,000 Hz and rated power of 250 kW, treat these as reference values and ask how they were established for material like yours. In the request for quotation, specify your charge form, target tap temperature and the melt time you need, then ask the supplier to state the conditions behind any quoted performance.
For the demonstration, agree in advance what will be recorded: charge weight, power setting, frequency reading, time to reach pouring temperature and any slag or lining observations. Ask whether the 0.5 t figure refers to a full melt or a holding capacity, and whether the 250 kW rating is input or delivered to the coil. If your metal differs in density or melting point from the supplier's usual test material, request a trial on your grade or a documented explanation of how results would change.
Before requesting a quote, confirm with the supplier which material will be used in the demonstration, how melt capacity and power are defined, what instrumentation records frequency and temperature, and what acceptance criteria will be written into the contract.