stress relief heat treatment with induction

MYD series of induction preheat welding machines are used for post welding, bending, piping, heat treatment stress relieving,coating, fitting, stress relief, pre-weld heat and post-weld heat treatment.

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SKU: 100 sets Category:

stress relief heat treatment with induction,stress relieving after welding,preheating for welding,induction post welding,welding preheat blankets,induction preheating metal before welding,post welding heat treatment

MYD series of induction heating system for pipeline heating, pre-welding heating and post-welding heating treatment

Model: MYD-20KW, MYD-30KW, MYD-40KW, MYD-60KW, MYD-80KW,MYD-100KW,MYD-120KW

• Input voltage: 380V, 3 phase, 4 Wire, 50/60HZ
• Output frequency: 2KHZ ~ 36KHZ
• Cooling type: air cooled
• Output Power: 2KW ~ 20KW, 2KW-30KW,2KW ~ 40KW,2KW ~ 60KW,4KW ~ 80KW,4KW ~ 100KW,4KW-120KW
• Heating Speed: 5-400°C per minute
• Heating temperature range: -10°C-1100°C
• Heating parts size range: 10-6000mm or equal
• Induction coil: 10-45meters long high temperature cable with air cooled
• Temperature recorder:6Channels for temperature controlling, 6Channels for showing
• Thermocouple: K Type (5-45 Meters long link cable)

Induction heating benefits

Compared to conventional preheating and stress relieving methods, induction heating offers numerous advantages, including improved heat uniformity and quality, reduced cycle time, and lower consumables costs. Induction heating is also safe, reliable and easy to use, and scores higher than alternative technologies .in power efficiency and versatility.

Features of DSP control induction system

• Air cooling: Convenience to install.
• Temperature recorder: Recording the whole heating curve and print it
• Soft induction coil: Easy to wind on different working piece.
• Temperature Controller: Keep the heating process same with PWHT requirement .
• PLC touching screen: Intuitive to see and easy to operate.
• Induction heating power: High heating speed and heating efficiency, electrical energy Saving
• Quickly heating speed. Can reach 300 degree C within 10 Min. Save heating times
• Electrical Power Saving: Can save more than 50% electrical power compare compared to conventional preheating and stress relieving methods

Applications and main using fields

MYD series induction heating system are air-cooling induction heating equipment with DSP system. Their main applications are pipeline heating, pre-heating of welding, post-welding heat treatment, stress relief, annealing, etc.
Coating heating, Shrink fitting
Weld preheating, Post-weld Heating Treatment, Stress relieving,Annealing
The industries involved are petrochemical, oil and gas pipelines, aerospace, shipbuilding, steel, boilers, pressure vessels, cylinders, metal structure, spatial structure, railway bridges, electricity water, mine construction, vehicle manufacturing, nuclear power, mining, plastics processing.

The induction heating equipment including

1. Induction heating power
2. Induction coil (Clamp induction coil) or (Soft induction coil)
3. Connection cable for the convenient to link the coil and the heating power
4. Temperature controller
5. PLC touch screen
6. Temperature recorder with printer
7. K type thermocouple&connection cable
8. insulation Blanket
9. And other part.

Choose part

1. K type thermocouple
2. Thermocouple Welder
3. Insulation Blanket
4. And so on








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

Thermocouple Connection cable