Across International IH series mid-frequency induction heaters are designed to operate between 30 and 80 kHz. Mid-frequency heaters are excellent for small parts heating, cutting, diamond tool brazing, soldering copper plumbing fittings, auto parts heat-treating, annealing of stainless steel containers and more.

Mid-frequency induction heaters are the simplest in terms of design and implementation. With their low cost of ownership and maintenance, they are the most popular and reliable machines. The 25kW models provide higher power capacity for factory, lab, and workshop environments that have suitable three-phase power available.

Safety

• Overvoltage protection: machine stops heating when voltage is above the safe limit.
• Overcurrent protection: machine stops heating when output current is above the safe limit.
• Water shortage protection: machine stops heating when cooling water pressure is too low.
• Always wear protective gear and goggles when operating the machine. Crucibles must be covered all the time during operation. Across International is not responsible for any damage caused by misuse.
• Do not run no-load operation for a long period of time, it might cause damage to the machine.
• Circulating water must be pure, clean and below 45C.
• Machine must be grounded properly all the time during operation.
• Do NOT use single-turn coil if coil diameter is smaller than 4 inches, it will cause high frequency damage to the machine.
• Thread tape (or related material) is absolutely prohibited during installation of induction coils.

Main Induction Furnace Specifications and melting Capacity:

The table below outlines the maximum melting capacity for each induction furnace model. Please note that each melting cycle takes approximately 50-60 minutes for a cold furnace and 20-30 minutes for a hot furnace.