Corrugated Transformer Tank 50–1600kVA: Complete Guide for Distribution Transformer Manufacturers

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Updated: Jun 01, 2026
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Corrugated Transformer Tank 50–1600kVA for Distribution Transformer Applications

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.

What Is a Corrugated Transformer Tank?

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:

  • Compensate for transformer oil expansion and contraction
  • Dissipate heat generated during transformer operation

Unlike conventional transformer designs that require conservators and separate cooling radiators, corrugated tanks simplify the structure while reducing maintenance requirements.

Main Benefits

  • Maintenance-free operation
  • Excellent cooling efficiency
  • Reduced oil oxidation
  • Compact footprint
  • Lower manufacturing costs
  • Enhanced mechanical strength
  • Long service life

Typical Capacity Range

Radiastar manufactures corrugated transformer tanks suitable for a wide range of distribution transformer ratings.

Standard Capacity Range

Transformer RatingTypical Application
50kVARural Distribution
100kVACommercial Buildings
200kVASmall Factories
315kVAIndustrial Distribution
500kVAUtility Networks
630kVAManufacturing Plants
800kVAInfrastructure Projects
1000kVAIndustrial Facilities
1250kVAUtility Substations
1600kVALarge Distribution Systems

Technical Specifications

Corrugated Transformer Tank Specifications

ItemSpecification
Capacity Range50–1600kVA
Voltage Class6kV–35kV
Frequency50Hz / 60Hz
Tank MaterialCarbon Steel
Plate Thickness2.5–6mm
Surface TreatmentShot Blasting
Coating SystemEpoxy Primer + Polyurethane
Cooling TypeONAN
Corrosion ProtectionC3–C5
Leak Test100% Pressure Tested
Design StandardIEC 60076

Why Transformer Manufacturers Choose Corrugated Tanks

1. Improved Cooling Performance

The corrugated fins significantly increase the heat dissipation area, allowing transformer oil to cool naturally without requiring additional cooling equipment.

2. Reduced Maintenance Costs

Because the corrugated wall expands and contracts with oil volume changes, there is no need for a conservator tank in many designs.

3. Lower Manufacturing Cost

Compared with radiator-equipped transformer tanks, corrugated tanks reduce component count and assembly time.

4. Higher Reliability

The fully sealed design prevents moisture ingress and minimizes oil contamination.

Manufacturing Process

At Radiastar, every transformer tank undergoes a strict manufacturing and inspection process.

Production Steps

  1. CNC Steel Cutting
  2. Corrugated Fin Forming
  3. Automatic Welding
  4. Tank Assembly
  5. Surface Preparation
  6. Shot Blasting
  7. Anti-Corrosion Painting
  8. Pressure Testing
  9. Final Inspection
  10. Packing and Shipment

Each tank is pressure tested before delivery to ensure zero leakage.

Applications

Corrugated transformer tanks are widely used in:

Utility Power Distribution

  • Urban power networks
  • Rural electrification projects
  • Utility substations

Industrial Facilities

  • Manufacturing plants
  • Mining operations
  • Steel mills
  • Petrochemical plants

Renewable Energy Projects

  • Solar power plants
  • Wind farms
  • Energy storage systems

Commercial Infrastructure

  • Shopping malls
  • Hospitals
  • Airports
  • Data centers

International Standards and Certifications

Radiastar manufactures transformer tanks in accordance with internationally recognized standards.

Compliance Standards

StandardDescription
IEC 60076Power Transformers
ISO 9001Quality Management
ISO 14001Environmental Management
ISO 45001Occupational Health & Safety
EN 50216Transformer Accessories
CE RequirementsEuropean Market Compliance

OEM Transformer Tank Manufacturing

Radiastar provides complete OEM and custom manufacturing services.

Available Customization Options

  • Customer drawings
  • Customized dimensions
  • Special steel grades
  • Hot-dip galvanized structures
  • Marine coating systems
  • Tropical climate protection
  • Utility-specific designs

Whether you require a single prototype or large-volume production, our engineering team can support your project requirements.

Global Export Experience

Radiastar transformer tanks are exported to:

  • Saudi Arabia
  • UAE
  • Oman
  • Qatar
  • Indonesia
  • Vietnam
  • Thailand
  • South Africa
  • Kenya
  • Egypt
  • Turkey
  • Brazil

Our products are trusted by transformer manufacturers, EPC contractors, and utility companies worldwide.

Why Choose Radiastar?

More Than 60 Years of Manufacturing Experience

Established in 1958, Radiastar has become a trusted supplier of transformer tanks and transformer cooling components.

Factory Direct Supply

  • Competitive pricing
  • Stable quality control
  • Fast delivery times

Engineering Support

  • Drawing review
  • Structural optimization
  • OEM customization

Global Export Capability

  • Professional export packaging
  • International logistics support
  • Technical documentation assistance

Frequently Asked Questions

What is the capacity range of corrugated transformer tanks?

Radiastar manufactures corrugated transformer tanks from 50kVA to 1600kVA for oil-immersed distribution transformers.

Can you manufacture according to customer drawings?

Yes. OEM and drawing-based production are available.

Which standards do your transformer tanks comply with?

Our transformer tanks are manufactured according to IEC 60076, EN 50216, and ISO quality standards.

Are all tanks pressure tested?

Yes. Every transformer tank undergoes leakage and pressure testing before shipment.

Request a Quote Today

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.

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