Overview
An aluminum shell induction melting furnace is a coreless medium-frequency induction furnace whose furnace body is made of cast aluminum alloy. It converts three-phase grid power into medium-frequency single-phase power, generating a rapidly changing magnetic field that induces eddy currents inside the metal charge — the metal heats up and melts from within, with no flame, no combustion gas, and no direct contact between the heat source and the charge.
Typical capacity range: 100 kg – 5,000 kg (steel, iron, copper, zinc);
100 kg – 2,000 kg (aluminum)
Working frequency: 200 – 2500 Hz
Main parts
1. Medium-frequency induction power supply — converts three-phase AC grid power into single-phase medium-frequency power. Modern units use IGBT or SCR technology for high efficiency and precise control.
2. Compensation capacitor bank — connected in parallel with the coil to correct the inductive load, improve power factor and cut energy cost.
3. Aluminum furnace body (aluminum shell) — non-magnetic cast aluminum frame that houses the coil and crucible; because aluminum is non-magnetic, the shell itself does not heat up in the magnetic field. Lightweight with good heat dissipation.
4. Induction coil — precision-wound helix of rectangular hollow copper tube (typical wall thickness 2.7 mm); cooling water flows through the coil continuously.
5. Refractory lining (crucible) — sintered quartz sand or magnesia/alumina lining that directly contains the molten metal and isolates it from the coil.
6. Tilting mechanism & operation box — a two-stage worm-gear reducer tilts the furnace body for controlled pouring; self-locking design, with manual tilting available in case of power failure.
2. Compensation capacitor bank — connected in parallel with the coil to correct the inductive load, improve power factor and cut energy cost.
3. Aluminum furnace body (aluminum shell) — non-magnetic cast aluminum frame that houses the coil and crucible; because aluminum is non-magnetic, the shell itself does not heat up in the magnetic field. Lightweight with good heat dissipation.
4. Induction coil — precision-wound helix of rectangular hollow copper tube (typical wall thickness 2.7 mm); cooling water flows through the coil continuously.
5. Refractory lining (crucible) — sintered quartz sand or magnesia/alumina lining that directly contains the molten metal and isolates it from the coil.
6. Tilting mechanism & operation box — a two-stage worm-gear reducer tilts the furnace body for controlled pouring; self-locking design, with manual tilting available in case of power failure.
Core Strengths
Spare Parts
Casting Machines
Core Melting Equipment
Other Supporting Equipment
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