Weld preheat Postweld heat treatment PWHT stress relieving machine

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US $10800.00 / Set |10 Sets (Min. Order)
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Place of Origin:
Shandong, China (Mainland)
Brand Name:
Model Number:
After-sales Service Provided:
Engineers available to service machinery overseas
Input voltage:
380V, 3 phase, 4 Wire, 50/60HZ
Output frequency:
2KHZ ~ 36KHZ
Cooling type:
air cooled
Output Power:
2KW ~ 20KW, 2KW ~ 40KW,2KW ~ 60KW,4KW ~ 80KW,4KW ~ 100KW
Heating Speed:
5-400°C per minute
Heating temperature range:
Heating parts size range:
10-6000mm or equal
Induction coil:
10-45meters long high temperature cable with air cooled
Temperature recorder:
1-4 Channels for temperature controlling, 5-12Channels for showing
K Type (5-45 Meters long link cable)

Weld preheat Postweld heat treatment PWHT stress relieving machine


MYD series of induction heating system are used for weld, bending, piping, coating, fitting, stress relief, pre-weld heat and post-weld heattreatment


Model and Technical Parameters








Input Power

3*380VAC (Default), 3*220VAC (Optional), 3*440VAC (Optional)

Output Frequency

2KHZ ~ 30KHZ

Output Power







Input Current







Air Cooling

Heating size:¢100-1500mm

Size: 800*560*1350mm

DSP control

Max:900℃; Heating Speed: 5-400℃/min

Packing size:900*660*1560mm

6 Channels control

10 curves recorder

Net weight: 120kg

Gross weight with parts: 155-260kg

Main parts

Induction coil

K Thermocouple

R-1006 Temperature Recorder

Connection cable

Insulation Blanket

ThermocoupleConnection cable



 Input Voltage: 380V, 3 phase, 50/60HZ

 Output Frequency: 2KHZ ~ 30KHZ

 Output Power: 2KW ~ 40KW

 Cooling: air cooled

 Heating Speed: 5-400℃ per minute

 Heating temperature range: -30℃-900℃

 Heating parts size range:¢100-1500mmor equal

 Induction coil: 10-45meters long high temperature cable with air cooled

 Temperature recorder: 6 Channels for temperature controlling

 Thermocouple: K Type (5-45 Meters long link cable)

 Size: 800*560*1350mm Net weight: 120kg; Packing size:900*660*1560mm, Gross weight: 155kg.


The option parts ofinduction heating system


 Induction heating power

 Induction coil (Clamp induction coil) or (Soft induction coil)

 Connection cable for the convenient to link the coil and the heating power

 Temperature controller

 PLC touch screen

 Temperature recorder with printer

 K type thermocouple&connection cable

 Insulation Blanket

 And other part


MYD series induction heater to compare the resistant heat



 High Speed

 Energy Saving: 30-80%




 Air cooling: working well at -10℃-40℃

 Induction heating power: To heat the work job with insulation blanket around it. High heating speed and heating efficiency with little energy lost.

 PLC touching screen: Intuitive to see and easy to operate.

 Soft induction coil: Easy to wind on different work piece.

 The Removable opening Induction coil: easy to operate and move.

 Temperature recorder: Record the whole heating curve.

 Temperature Controller: Heating according to the heating requirement details with the ±3℃ tolerance.


Applications&using fields


Our MYD series heating system are air-cooled induction heating equipment with DSP system.

Their main applications are pipeline heat, pre-weld heat, post-weld heat treatment, stress relief, injection mold heating, annealing, etc.

 Pre-heat:for coating, bending, fitting&unfitting, weld.

 Post-weld heat treatment: tank, boiler or other metal jobs

 Heating: mold heating, shipboard, zinc bath, large& irregular metal parts

 Pipeline heat: pipeline oil, pipeline gas, pipeline water, pipeline petrochemical and other pipeline material

The using fields involved are petrochemical, oil and gas pipelines, aerospace, shipbuilding, steel, tanks, boilers, vessels, pressure vessels, cylinders, metal structure, spatial structure, railway bridges, electricity water, mine construction, vehicle manufacturing, nuclear power, mining, plastics processing, energy saving process, mold, screw barrel industries,etc. 





Some field heating samples:


1. Hot fitting and unfitting heating




2.  Post weld heat treatment










3. Pre-weld heat







4. Heat for coating and painting





5. Pipeline materials heating




Packing details:


Packing size: 900*660*1560mm, Gross weight: 155kg.