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======Applications & Main Characteristics====== |
Main specifications:
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model |
Max. input power |
Output frequency |
input |
Auxiliary function |
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SPG-10-Ⅱ normal |
10KW |
200-500KHZ |
220V single phase
50 or 60HZ |
Normal type |
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SPG-10A-Ⅱ with timer |
With timer |
Main applications and characteristics: SPG-10-Ⅱ series are suitable for many applications, for example, (1)Heat treatment of small parts (2)Heating of wire smaller than 1mm (3)floating melt for institute or college research and so on. Due to the adopting of our third generation inverting control technology and the MOSFET power components, SPG-10-Ⅱ series machines are characterized not only with high frequency up to 500KHZ output, but also with high reliability. It is especially suitable to heat tiny parts and wires.
Typical applications:

Advantages and applications of models with Timer function: 1. Heating power, retaining power, heating time, retaining time can be preset and adjusted, this makes it possible to control the heating curve and 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 and retaining can be achieved to keep the temperature while the brazing material is melted and then to let the brazing material spread smoothly to form good joint.
Working theory and structure In SPG-10-Ⅱ series machines, series oscillating circuit is applied, through high frequency transformer, low voltage and high current power is output to go through the induction coil. The main oscillating structure is as follows:

Inside the SPG-10-Ⅱ series machines, MOSFET and our third generation inverting control technology has been used, that is the soft and dual control and inverting technology. In this technology, output power and frequency can be controlled and adjusted separately, MOSFET and soft switching control technology are used in the high frequency switching circuit to control the output power. In the inverting circuit, the MOSFET and frequency tracing circuit is applied to achieve high speed and accurate soft switching control. The adoption of new technologies makes it possible to output the 500KHZ high frequency power supply. Inside the SPG-10-Ⅱ series machines, oscillating cap is connected to the secondary coil of the transformer, so the voltage on the primary coil of the transformer is low and problems caused by high voltage such as sparks and insulations are solved thoroughly to increase the reliability and quality of the machine. At the same time, the transformer is light and small sized with low energy consuming.
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