Transformer radiators play a critical role in maintaining the safe operating temperature of oil-immersed transformers. Efficient cooling improves transformer performance, extends service life, and reduces maintenance costs. Whether for distribution transformers, power transformers, rectifier transformers, or electric furnace transformers, selecting the right radiator is essential for reliable operation.
As a professional transformer radiator manufacturer in China, we supply OEM and custom-designed radiator panels for customers across the Middle East, Southeast Asia, Central Asia, South America, and Europe. Our products comply with IEC standards and are widely used in substations, renewable energy projects, industrial plants, and utility power systems.
A transformer radiator is a heat dissipation component installed on oil-filled transformers. It transfers heat generated by the transformer windings and core into the surrounding air through natural or forced oil circulation.
The radiator works as part of the transformer cooling system, ensuring that insulating oil remains within the optimal operating temperature range. Proper cooling prevents insulation aging, improves efficiency, and increases transformer lifespan.
Common transformer types using radiators include:
Corrugated radiators feature wave-shaped cooling fins that increase heat dissipation area while reducing weight.
Advantages:
Pressed steel radiators are manufactured by stamping steel plates and welding them into radiator panels.
Advantages:
Detachable radiators simplify transportation, installation, and maintenance.
Suitable for:
Transformer oil absorbs heat generated by the windings and magnetic core. As the oil temperature rises, hot oil flows into the radiator through the upper pipe.
Inside the radiator, heat transfers through steel panels into ambient air. The cooled oil then returns to the transformer tank via the lower pipe.
Depending on transformer capacity, different cooling methods are used:
Selecting the correct radiator depends on several technical parameters.
Available for:
Popular center distances include:
Standard heights:
Typical design pressure:
Each radiator undergoes pressure and leakage testing before shipment.
| Item | Specification |
|---|---|
| Material | High-quality carbon steel |
| Surface Treatment | Powder coating |
| Cooling Type | ONAN / ONAF |
| Center Distance | 250–520 mm |
| Height | 1000–2500 mm |
| Pressure Test | 1.0 MPa |
| Leak Test | 100% Tested |
| Standard | IEC 60076 |
| OEM Service | Available |
Every transformer radiator is manufactured under strict quality control.
Production steps include:
Automated production lines ensure consistent quality and dimensional accuracy.
Each radiator passes comprehensive inspections before delivery.
Tests include:
This ensures long-term reliability under demanding operating conditions.
Our transformer radiators are widely used in:
With years of export experience, we provide complete radiator manufacturing solutions.
Our advantages include:
With proper installation and maintenance, a high-quality radiator can operate reliably for more than 25 years.
Yes. We provide full OEM and custom manufacturing based on technical drawings or samples.
Our products are manufactured according to IEC 60076 and relevant international quality standards.
Yes. Every radiator undergoes a 100% hydraulic pressure and leakage test before shipment.
We use durable powder coating with excellent corrosion resistance for outdoor environments.
Our radiators are supplied to customers in the Middle East, Southeast Asia, Central Asia, South America, Europe, and Africa.
Choosing the right transformer radiator is essential for improving transformer cooling efficiency, extending equipment life, and reducing operating costs. Whether you require standard radiator panels or fully customized OEM solutions, selecting a reliable manufacturer ensures long-term performance and dependable operation.
As a trusted transformer radiator manufacturer, we are committed to delivering high-quality products, strict quality control, competitive pricing, and professional technical support for customers worldwide.
Looking for a reliable transformer radiator manufacturer?
Contact our engineering team today to receive:
Get in touch now to discuss your transformer cooling project and receive a tailored solution.
