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SP-15 & SP-25 series H.F. heater

SP-15A     with 2m coil cable
SP-15A with 2m coil cable
(1) Maximum input power: 7KW
(2) Input: 220V single phase
(3) Output frequency: 30—100KHZ
(4) Used for heat on site

SP-15   High frequency induction heater
SP-15 High frequency induction heater
(1) Model: SP-15 Normal type
(2) Maximum input power: 7KW
(3) Input: 220V single phase,
(4) Output frequency: 30—100KHZ
(5) Used for saw tip brazing, etc.

SP-15A    High frequency induction heater
SP-15A High frequency induction heater
(1) Maximum input power: 7KW
(2) Input: 220V single phase
(3) Output frequency: 30—100KHZ
(4) Used for saw tip brazing, etc.

SP-15B   High frequency induction heater
SP-15B High frequency induction heater
(1) Model: SP-15B with separated transformer
(2) Maximum input power: 7KW
(3) Input: 220V single phase, 50 or 60HZ
(4) Output frequency: 30—100KHZ
(5) Used for saw tip brazing, etc.

SP-15AB    High frequency induction heater
SP-15AB High frequency induction heater
(1) Model: SP-15AB with timer and separated transformer
(2) Maximum input power: 7KW
(3) Input: 220V single phase, 50 or 60HZ
(4) Output frequency: 30—100KHZ
(5) Used for saw tip brazing, etc.

SP-25   High  frequency induction heater
SP-25 High frequency induction heater
(1) Model: SP-25 Normal type
(2) Maximum input power: 15KW
(3) Input: 380V three phase, 50 or 60HZ
(4) Output frequency: 30—80KHZ
(5) Used for saw tip brazing, etc.

SP-25A   High frequency  induction heater
SP-25A High frequency induction heater
(1) Model: SP-25A with timer
(2) Maximum input power: 15KW
(3) Input: 380V three phase, 50 or 60HZ
(4) Output frequency: 30—80KHZ
(5) Used for saw tip brazing, etc.

SP-25B  High frequency induction heater
SP-25B High frequency induction heater
(1) Model: SP-25B with separated transformer
(2) Maximum input power: 15KW
(3) Input: 380V three phase, 50 or 60HZ
(4) Output frequency: 30—80KHZ
(5) Used for saw tip brazing, etc.

SP-25AB   High frequency induction heater
SP-25AB High frequency induction heater
(1) Maximum input power: 15KW
(2) Input: 380V three phase
(3) Output frequency: 30—80KHZ
(4) Used for saw tip brazing, etc.

Main specifications:

model

Max. input power

Output frequency

input

Auxiliary function

SP-15 normal type

7KW

30-100KHZ

220V 1P

50 or 60HZ

none

SP-15A with timer

With timer

SP-15B split type

Connecting cable length 2 meters

SP-15AB split/timer

Split and with timer

SP-25 normal type

15KW

30-80KHZ

380V 3P

50 or 60HZ

none

SP-25A with timer

With timer

SP-25B split type

Connecting cable length 2 meters

SP-25AB split/timer

Split and with timer


Main applications and characteristics:
SP-15 and 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-15 and 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-15 and 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 and SP-25 series machines are the first models developed in our company, SP-15 uses MOSFET components and SP-25 used IGBT components, both 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-15A and SP-25A:
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-15B and SP-25B:
1. In SP-15B and 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.

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