... 2.100% duty cycle design 3,Quick heating high frequency welding machine igbt ZhengZhu GuoYun Detail features1.The lock-in technique ... a variety of sensors2.Divided machine designment3. the operation is simple, safe, reliable, and no high pressure dangerous.4.simple ... factor100%Dimensions(extension)500x800x580(MM) Application 1.Big and high intensity bolts ,nuts heat penetrating3.Heat treatment used in ...