Cooper and Brass Tube Brazing Machine (SP-25 series induction heater)

• Customization: Available
• Type: Stainless Steel Heating Equipment
• Certification: CE, ISO
• Model NO.: SP-25 series
• Brand: Shuangping
• Transport Package: Carton
• Specification: 28KG to 46KG
• Trademark: shuangping
• Origin: China
• HS Code: 8514400090
• Production Capacity: 1000 PCS/Year

Product Description

1. main models 

	model	explanation
1	SP-25
2	SP-25A	with timer, heating time and retaining time 1-99 sec. adjustble
3	SP-25B	split type, cable 2 meters
4	SP-25AB	split type with timer

2. Basic specifications of SP-25  

	explanations	specifications
1	maxiumu input power	15KW
2	oscillating frequency	30 to 80KHZ
3	input	3X380V , 50 or 60HZ 3X220 , 3X415V,3X440V can be ordered
4	heating current	200 to 1000A
5	duty cycle	80%
6	cooling water desire	≥0.2MPa  ≥5L/min
7	weight of SP-25 and SP-25A	28KG
8	size of SP-25 and SP-25A	53L, 22W, 40H  (CM)
9	SP-25B generator weight	16KG
10	SP-25B transformer weight	14KG
11	SP-25B generator size	47L, 19W, 40H  (CM)
12	SP-25B transformer size	26L, 19W, 26H(CM)

Main applications and characteristics:
SP-25  series are  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 and stainless steel of little amount.
SP-25  series machines are characterized with simple structure, high reliability and low price, and are one of the most popular models and have been used widely in every areas of metal heating.

Working theory and structure
In SP-25  series machines, series oscillating circuit is applied as circuit below, through high frequency transformer, low voltage and high current power is output to go through the induction coil.  SP-15 series machines are the first models developed in our company, SP-25 uses IGBT components , use our first generation inverting control technology, the machines are featured with simple structure, high reliability and low price, and they are easy to use and to repair, and are now the most widely used machines both in China and abroad. 



Advantages  of Timer function of SP-25A with timer:

1. Heating power, retaining power, heating time, retaining time and cooling 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. 

Advantages of separated transformer of SP-25B Split type with separated transformer:

1. In SP-25B  machines, the high frequency transformer is separated from the generator, with 2 meters connecting cable at least.
2. It is suitable to use in the dirty or corrosive surroundings, the generator can be put in a clean space to increase the reliability.
3. With the small size and light weight of the separated transformer, it is convenient to use in the production line and easily assembled inside the machinery or moved mechanism.