25kw High Frequency Induction Heating Machine
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25KW High Frequency Induction Heater DD-25I

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25KW High Frequency Induction Heater DD-25I


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Product features:

25kw High Frequency Induction Heating Machine

Product features:
1.Adopt advanced high-quality MOSFET pipe advanced frequency conversion technology to improve performance quality of the device.
2.Heating,heat preservation current,time can be set adjusted.
3.Simple convenient installation,can work after connecting to 380V power,water inlet, water outlet,professional installation is not required.
4.Small shape,light weight,simple operation,can be learned within several minutes.
5.Contain the multi-level protection display such as overvoltage,overcurrent, underwater.

Technical parameter:



Maximum oscillating power


Input voltage scope

Three phases 340-420V

Input voltage frequency


Output oscillating frequency


Input current

23 A

Heating/retain/cooling time


Duty cycle


Cooling water flow


Cooling water temperature




Main applications characteristics:
DD-25 series is suitable for the heating of small metal parts, for example, (1) brazing of machining tools (2) Brazing of diamond tools (3) Heat treatment of small parts (4) Melting of gold, silver, copper, brass of little amount (5) Melting of steel stainless steel of little amount  (6) Brazing of copper & brass tube connectors in air conditioner manufacturing factories so on. (7) Brazing of electrical kettle bottom.
DD-25 series machines are characterized with simple structure, high reliability low price, are one of the most popular models have been used widely in every areas of metal heating.

Advantages applications of Timer function of DD-25I:
1. Heating power, retaining power, heating time, retaining time cooling time can be preset adjusted, this makes it possible to control the heating curve heating time.
2. It is suitable to use in the repeated heating or high speed heating of small parts;
3. When using in brazing, with proper timing parameters, rapid heating retaining can be achieved to keep the temperature while the brazing material is melted then to let the brazing material spread smoothly to form good joint.

Working theory structure:
In DD-25 series machines, series oscillating circuit is applied, through high frequency transformer, low voltage high current power is output to go through the induction coil.  DD-25 series machines are the first models developed in our company, using IGBT module our first generation inverting control technology,  the machines are featured with simple structure, high reliability low price, they are easy to use to repair, are now the most widely used machines both in China abroad.

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