Medium-frequency heater applied in heat treatment processes.
This equipment is an industrial heating device integrating induction preheating and post-weld heat treatment (PWHT) functions, suitable for welding preprocessing and post-weld stress relief of various metal materials. Its core parameters and functional features are as follows:
| Model |
60KW Induction Preheating PWHT Machine |
| Input Voltage |
3 Phase 380V, 50HZ |
| Output Frequency |
5KHZ ~ 30KHZ |
| Output Power |
60 KW |
| Input Current |
0-90A |
| Cooling Type |
Air cooling |
| Heating Temperature |
Preheat 0 - 350 C |
| Temperature Control |
1 Channel or 4 Channel |
| Heating Pipe size |
Dia: 50 -1000 mm |
| Heating Coil |
Induction Coil, Heating Blanket, Clamp Induction Coil |
| Extend cable |
1-20 meter |
| Heating Blanket |
Induction heating blanket, High temperature tube |
| Alarm |
Over Voltage, Over Current, Over Temperature and so on |
I. Core Technical Parameters
- Power and Voltage: With an output power of 60KW, it adopts a 3-phase 380V, 50HZ power input, and the input current ranges from 0-90A, meeting the heating needs of medium and large workpieces.
- Adjustable Frequency: The output frequency is 5KHZ ~ 30KHZ, which can be flexibly adjusted according to different materials (such as carbon steel, alloy steel, stainless steel) and workpiece sizes to ensure heating efficiency and uniformity.
- Temperature Performance: The preheating temperature ranges from 0 - 350°C, equipped with 1-channel or 4-channel temperature control systems, which can accurately monitor and adjust the temperature of the heating area, with high control precision to avoid local overheating or insufficient temperature.
- Applicable Workpiece Specifications: It can heat pipes with a diameter of 50 - 1000mm, adapting to the heating needs of various industrial pipes, pressure vessels, and other cylindrical or tubular workpieces.
II. Structural and Configuration Advantages
- Cooling Method: Adopting an air-cooled design, it eliminates the need for an additional water-cooling system, simplifying equipment installation and maintenance. It can also adapt to complex working conditions such as -10°C ~ 40°C, making it particularly suitable for outdoor operations or environments lacking water resources.
- Diverse Heating Components: Equipped with various heating accessories such as induction coils, heating blankets, and clamp induction coils. It can be flexibly selected according to workpiece shapes (such as straight pipes, elbows, special-shaped parts) to improve adaptability. Among them, induction heating blankets and high-temperature tubes can achieve
conformal heating, reducing heat loss.
- Expansion Capability: Supports 1-20 meter extended cables, facilitating operators to heat large workpieces or complex scenarios (such as overhead pipe welding) at a long distance, improving operational flexibility.
III. Safety and Reliability
The equipment has a built-in comprehensive alarm system, which can real-time monitor abnormal conditions such as overvoltage, overcurrent, and overtemperature. Once a fault is triggered, it will automatically alarm and take protective measures to avoid equipment damage or workpiece heating defects, ensuring production safety and stability.
IV. Typical Application Scenarios
Widely used in fields such as electric power, petrochemical industry, and pipeline engineering, it can not only preheat workpieces before welding (to reduce welding cracks) but also perform heat treatment after welding (to eliminate residual stress). It is especially suitable for processing key components such as thick-walled pipes and pressure vessels, and is an important equipment to improve welding quality and workpiece mechanical properties.
Audited Supplier 
){kind=link}