1. SPY classifications and main products
(1)  SPY series products： SPY machines are consisted of SPY generator and Portable heating head with  3 or 5 meter long connecting cable,  and are suitable for copper connector brazing of transformer and copper tube brazing of  air conditioner, etc.； Main products  includes   SPY-10、SPY-20、SPY-30、SPY-40、SPY-60 and SPY-100；
(2)  SPY-C series products： These machines are consisted of SPY-C generator and portable heating head with cooling system inside,  Main products include SPY-10-C2、SPY-20-C3、SPY-30-C4、SPY-60-C10.

2. Working theory and characteristics
SPY machines adopt series oscillating circuit,  inverting high frequency power is output through  transformer and oscillating cap to the heating head, and then output to coil for heating. 
 


In SPY machines, our latest third generation inverting and adjust technologies are adopted to realize soft switching of the IGBT components and independent adjusting of the power and frequency, so as to reach a marvelous heating feature of the machine.