... 30-80KHZ; It is suitable for quick heating of small workpiece.3. Energy efficient, high pow factor and power ... . Usd for :Metal Quenching,anneal, welding, small scale smelting, small-scale through heating and small-scale forging...Application of Induction heating equipment:Heating (hot ... pin, chain wheel, aluminum wheel, valve, rock arm shaft, small shaft and fork. 3.Various electric tools, such as axes ...