General introduction of SPZ series:
All SPZ Heating systems are consisted of three main parts: (1) SPZ series Medium frequency generator (2) Heating furnace or Induction coil （3）Compensating capacitor or Medium frequency transformer.
SPZ series medium frequency generator is universal, its frequency ranges from 1KHZ to 20KHZ, when working, generators can trace the frequency automatically. We can supply SPZ series power ranging from 15KW to 300KW, main models are SPZ-15, SPZ-25, SPZ-35, SPZ-45, SPZ-70, SPZ-90, SPZ-110, SPZ-160 and SPZ-300.
Heating furnace or induction coil and compensating capacitor or medium frequency transformer are designed and matched according to the application details. So every SPZ series heating system is designed specially to optimize the system to satisfy the frequency requirements or heating depth requirements or other desires, For all the metal whether it is magnetic sensitive or not, for almost all the situation, SPZ series heating system can be designed with Best power output.
Frequency range (1—20KHZ) of SPZ series is suitable for the penetrating heat of shafts and rods and other type metal parts for heat treatment or forging or metal melting. SPZ forging furnace and SPZ melting furnace are the two most widely used heating system now. except these two, SPZ series are also used widely for heat for matching, tube heating and so on.
Model explanation: SPZ-XXX A
SPZ-- Product series (medium frequency generator series)
XXX-- Rated input power
A--Additional function A--with timer function
Main models of M.F. generator and Specifications:
|
Models |
Maximum
input power |
Oscillating
frequency |
Input
voltage |
Duty
cycle |
|
SPZ-15 Normal type
SPZ-15A with timer |
15KW |
1—20KHZ |
3P 380V |
100% |
|
SPZ-25 Normal type
SPZ-25A with timer |
25KW |
30-80KHz |
3P 380V |
100% |
|
SPZ-35 Normal type
SPZ-35A with timer |
35KW |
30-80KHz |
3P 380V |
100% |
|
SPZ-45 Normal type
SPZ-45A with timer |
45KW |
30-80KHz |
3P 380V |
100% |
|
SPZ-70 Normal type
SPZ-70A with timer |
70KW |
30-80KHz |
3P 380V |
100% |
|
SPZ-90 Normal type
SPZ-90A with timer |
90KW |
30-80KHz |
3P 380V |
100% |
|
SPZ-110 Normal type
SPZ-110A with timer |
110KW |
30-80KHz |
3P 380V |
100% |
|
SPZ-1600 Normal type
SPZ-160A with timer |
160KW |
30-80KHz |
3P 380V |
100% |
|
SPZ-300 Normal type
SPZ-300A with timer |
300KW |
30-80KHz |
3P 380V |
100% |
Structure and technology of SPZ generator:
In SPZ series generator, parallel oscillating circuit is used, after oscillating circuit, power is output directly to the induction coil.
When using M.F. transformer, oscillating have two different connecting ways, one is parallel with the primary coil of the transformer, second is parallel with the secondary coil of the transformer.
In SPZ series generator, our third generation current inverting technology is adopted, soft switching of IGBT technology and frequency tracing technology and dual control and adjustment technology are used in these generators.
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