As global demand for energy-efficient distribution transformers continues to grow, transformer manufacturers require durable, leak-proof, and cost-effective tank solutions. The corrugated transformer tank has become the preferred choice for oil-immersed distribution transformers ranging from 50kVA to 1600kVA due to its compact structure, excellent cooling performance, and maintenance-free operation.
Radiastar specializes in manufacturing corrugated transformer tanks for transformer OEMs, utilities, EPC contractors, and transformer repair companies worldwide. With decades of manufacturing experience, we provide custom-built transformer tanks based on customer drawings and technical specifications.
A corrugated transformer tank is a sealed transformer oil tank equipped with corrugated steel fins integrated into the tank walls. These corrugations serve two critical functions:
Unlike conventional transformer designs that require conservators and separate cooling radiators, corrugated tanks simplify the structure while reducing maintenance requirements.
Radiastar manufactures corrugated transformer tanks suitable for a wide range of distribution transformer ratings.
| Transformer Rating | Typical Application |
|---|---|
| 50kVA | Rural Distribution |
| 100kVA | Commercial Buildings |
| 200kVA | Small Factories |
| 315kVA | Industrial Distribution |
| 500kVA | Utility Networks |
| 630kVA | Manufacturing Plants |
| 800kVA | Infrastructure Projects |
| 1000kVA | Industrial Facilities |
| 1250kVA | Utility Substations |
| 1600kVA | Large Distribution Systems |

| Item | Specification |
|---|---|
| Capacity Range | 50–1600kVA |
| Voltage Class | 6kV–35kV |
| Frequency | 50Hz / 60Hz |
| Tank Material | Carbon Steel |
| Plate Thickness | 2.5–6mm |
| Surface Treatment | Shot Blasting |
| Coating System | Epoxy Primer + Polyurethane |
| Cooling Type | ONAN |
| Corrosion Protection | C3–C5 |
| Leak Test | 100% Pressure Tested |
| Design Standard | IEC 60076 |
The corrugated fins significantly increase the heat dissipation area, allowing transformer oil to cool naturally without requiring additional cooling equipment.
Because the corrugated wall expands and contracts with oil volume changes, there is no need for a conservator tank in many designs.
Compared with radiator-equipped transformer tanks, corrugated tanks reduce component count and assembly time.
The fully sealed design prevents moisture ingress and minimizes oil contamination.
At Radiastar, every transformer tank undergoes a strict manufacturing and inspection process.

Each tank is pressure tested before delivery to ensure zero leakage.
Corrugated transformer tanks are widely used in:
Radiastar manufactures transformer tanks in accordance with internationally recognized standards.
| Standard | Description |
|---|---|
| IEC 60076 | Power Transformers |
| ISO 9001 | Quality Management |
| ISO 14001 | Environmental Management |
| ISO 45001 | Occupational Health & Safety |
| EN 50216 | Transformer Accessories |
| CE Requirements | European Market Compliance |
Radiastar provides complete OEM and custom manufacturing services.
Whether you require a single prototype or large-volume production, our engineering team can support your project requirements.
Radiastar transformer tanks are exported to:
Our products are trusted by transformer manufacturers, EPC contractors, and utility companies worldwide.
Established in 1958, Radiastar has become a trusted supplier of transformer tanks and transformer cooling components.
Radiastar manufactures corrugated transformer tanks from 50kVA to 1600kVA for oil-immersed distribution transformers.
Yes. OEM and drawing-based production are available.
Our transformer tanks are manufactured according to IEC 60076, EN 50216, and ISO quality standards.
Yes. Every transformer tank undergoes leakage and pressure testing before shipment.
Looking for a reliable Corrugated Transformer Tank Manufacturer?
Radiastar provides:
✓ Corrugated Transformer Tanks 50–1600kVA
✓ OEM & Drawing-Based Production
✓ IEC 60076 Compliant Designs
✓ Fast Delivery & Competitive Pricing
✓ Worldwide Export Support
Contact Radiastar today to receive a technical consultation and quotation for your transformer tank project.











