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Induction Heating Since 2000

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PWHT Machine

1. Digital PWHT machine.
2. Fast induction heating speed.
3. Uniform heating result.
4. Energy-saving up to 30-80%
5. Much clean working environment.

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PWHT machine applications

The PWHT machines are mainly used in the petroleum, petrochemical, aerospace, shipbuilding, steel, boiler, ship, pressure vessel, steel frame structure, railway, bridge, mine construction, automobile manufacturing, nuclear power, mining industry, etc.And in total mostly used in the following induction heating application fields:

  • Weld preheating/post-welding heat preservation: pipeline, steel plate, steel structure, pressure vessel, etc.
  • Hot assembly/hot disassembly: hot disassembly and hot assembly of rotors such as bushing, turbine, motor, and coupling.
  • Medium induction heating: heat conduction oil, industrial water, hot water boiler, chemical reactor, hot air heating, etc.

PWHT machine technical parameters

Model KQYD-10kw KQYD-20kw KQYD-30kw
Input Voltage 3*380v, 50/60hz 3*380v, 50/60hz 3*380v, 50/60hz
Input Current 1~15A 1~30A 1~40A
Output Current Output Power 1~200A 1~250A
Output Power 1~10KW 1~20KW 1~30KW
Output Frequency 5~30kHz 5~30kHz 5~30kHz
Heating Temperature Max 900℃ Max 900℃ Max 900℃
Heating Pipeline Size Dia:50~700mm For 400℃ Heating Temperature Dia:50~1000mm For 400℃ Heating Temperature Dia:50~1200mm For 400℃ Heating Temperature
Size 500*350*400mm 550*400*450mm 600*450*500mm
Weight 26kg 30kg 45kg
Induction Heating Coil
Length 10-20m 10-20m 10-20m
Diameter 10mm 13mm 15mm
Model MQYD-40KW MQYD-60KW MQYD-80KW MQYD-100KW MQYD-120KW MQYD-200KW
Input Voltage 3*380v, 50/60hz 3*380v, 50/60hz 3*380v, 50/60hz 3*380v, 50/60hz 3*380v, 50/60hz 3*380v, 50/60hz
Output Frequency 2kHz~30kHz 2kHz~30kHz 2kHz~30kHz 2kHz~30kHz 2kHz~30kHz 2kHz~30kHz
Output Power 40kw 60kw 80kw 100kw 120kw 200kw
Input Current 60A 90A 120A 150A 180A 280A
Cooling Type Water Cooling Water Cooling Water Cooling Water Cooling Water Cooling Water Cooling
Heating Temperature Max:900 ℃; Heating Speed: 5-100℃/Min Max:900 ℃; Heating Speed: 5-100℃/Min Max:900 ℃; Heating Speed: 5-100℃/Min Max:900 ℃; Heating Speed: 5-100℃/Min Max:900 ℃; Heating Speed: 5-100℃/Min Max:900 ℃; Heating Speed: 5-100℃/Min
6 Channels Control 6 Channels Recorder 6 Channels Recorder 6 Channels Recorder 6 Channels Recorder 6 Channels Recorder 6 Channels Recorder
Main Parts Induction Coil Connection Cables Insulation Blanket K Thermocouple R-1006 Temperature Recorder Thermocouple Connection Cable

PWHT machine strucutre

The PWHT machine normally includes the following parts:

  • PWHT machine main body
  • Induction heating coil
  • Thermocouple
  • Thermal insulation blanket
PWHT Machine 7 jpg The Leading Induction Heating Machine Manufacturer PWHT Machine

PWHT machine main technical features

  • Air cooled: PWHT machines are all with air cooling circuits, which avoids the inconvenience caused by low ambient temperature and water cooling.
  • Fast heating speed: can heat the metal workpiece directly, unlike heat transfer to the metal by a resistor or flame.
  • High heating efficiency: Heat conversion efficiency up to 96%, through the insulation material heating
  • Simple operation: PWHT machine with PLC touch screen operation, start heating. Temperature controller control is more accurate. Record and save the curves.
PWHT Machine

How to choose a suitable PWHT machine?

  Normally as per the heated parts size and heating temperature choose the suitable PWHT machine. The bigger the heated workpiece, the higher the heating temperature, and the higher the power level PWHT machine should be.

  The key point is that we should design and suggest suitable induction heating coils as per the user’s heated parts details, drawings will be better.

  Lower heating temperature and fast heating speed request, choose the air cooled PWHT machine and water-cooled induction heating coil, sometimes can also choose the water cooled induction heating machine with the water cooled induction heating coils.

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