Transformer Corrugated Radiator
2. Material: steel plate.
3. Structure: corrugated radiator panels.
4. Cooling method: natural oil cooling.
5. Finish: painted or to specification.
6. Panel dimensions: to transformer design.
7.Lead Time: 7–10 working days
8.Customization: Flexible OEM/ODM options
Transformer Corrugated Radiator for Oil-Immersed Transformers — Custom-Engineered Cooling Solutions
Avantar's Transformer Corrugated Radiator is a passive cooling component for oil-immersed transformers operating in ONAN mode. The structure of the corrugated fins increases the surface area for heat exchange, which keeps the transformer oil at a safe temperature even when it is under heavy load all the time. Each unit is made to fit the rated capacity of your transformer and has height, width, and number of fins that can be changed. Products can be ordered as loose radiator panels or as units that are already put together. A single unit is required for a minimum order.
What Is a Transformer Corrugated Radiator?
A passive, fanless system in the product moves waste heat from the transformer oil to the air around it. The shape of the corrugated steel fins gives them a larger contact surface than a flat panel. This lets heat spread out more evenly without using any moving parts.
This radiator can be used on power transformers, oil-immersed distribution transformers, substation equipment, and step-up transformers for renewable energy. Since there are no moving parts, they require less upkeep and last longer in industrial or outdoor settings.
Key Product Features
Its main design feature is the corrugate fin structure. The steel surface is folded into a wave pattern for increased heat-dissipation area without adding considerable weight or bulk to the assembly.
Outdoor substations and industrial transformer rooms get mechanical robustness from steel plate construction. Anti-rust surface treatment enhances service life in humid or corrosion-prone situations.
Each unit is available either as separate radiator panels or as a fully pre-assembled radiator bank, depending on your installation requirements and site conditions.
Custom Design Options
Every product from Avantar is engineered to your project requirements. Dimensions and fin layouts are determined by your transformer's rated capacity and available installation space.
Customizable parameters include:
- Overall dimensions — height and width adjusted to your transformer housing
- Fin quantity and layout — configured for the required heat-dissipation surface area
- Surface finish — standard paint coat or anti-corrosion coating for harsh outdoor environments
- Delivery format — loose radiator panels for site assembly, or pre-assembled radiator banks for direct installation
To begin, provide your transformer capacity data, installation space constraints, and site environmental conditions. The engineering team will confirm fabrication drawings before production starts.
Technical Specifications
| Parameter | Details |
|---|---|
| Material | Steel plate |
| Radiator Type | Corrugated fin radiator |
| Cooling Method | Natural oil cooling (ONAN) |
| Surface Finish | Painted or as required |
| Size | Customized to transformer capacity |
| Design Format | Finned radiator panel |
| Delivery Format | Loose panels or pre-assembled units |
| MOQ | 1 unit per model |
| Production Lead Time | 15–30 working days after drawing approval |
Compliance & Certifications
The products are made in a way that meets ISO 9001, IEC 60076, and CE standards.
Each export shipment comes with a certificate of origin, material test reports, and pressure test records to help with clearing customs and putting in bids for renewable energy or substation projects.
On request, a third-party witness inspection can be set up. You can also get finished radiators inspected by video before they are sent out.
Applications
The Transformer Corrugated Radiator panel design is used across a range of transformer types and project scales:
- Oil-immersed distribution transformers
- Power transformers in substations
- Industrial transformer rooms
- Renewable energy step-up transformers (solar farms, wind power)
- Infrastructure power supply equipment
The custom engineering approach ensures each unit fits the specific thermal load and physical footprint of your equipment, whether you are sourcing a single replacement panel or specifying for a large-scale substation project.
How to Specify?
To receive a quotation and fabrication drawing, provide the following information:
- Transformer rated capacity (kVA or MVA)
- Required heat-dissipation area or temperature rise limit
- Available installation space — height, width, and depth constraints
- Site environment — indoor or outdoor, humidity level, corrosion exposure
- Surface finish preference — standard paint or special coating
- Delivery format — loose panels or pre-assembled units
- Preferred trade terms — EXW, FOB, or others
FAQ
Q: How does ONAN natural cooling work in a heater with ribs?
A: The steel fins let heat move freely from the oil inside the transformer to the air around it. The structure of the corrugated fins increases the contact surface area. This means that the transformer's temperature stays stable even when it is under steady load, without the need for fans or pumps.
Q: Does Avantar make things or just sell them?
A: Avantar is a direct manufacturer. Within our Guangdong plant, welds, tests under pressure, paints, corrugates, and cuts steel plates all by hand.
Q: What can be changed to fit different projects?
A: The overall size, number and arrangement of fins, type of surface coating, and delivery format can all be changed. Give the engineering team information about the site conditions and the amount of power your transformer can handle. They will then check the fabrication drawings before production starts.
Q: What kinds of certificates and test papers are included?
A: There is documentation for ISO 9001, IEC 60076, and CE compliance with every shipment. There is also a certificate of origin, material test reports, and pressure test records.
Q: What is the minimum order quantity (MOQ) and how long is the wait time?
As a general rule, the MOQ is one lot per model. After the drawing is approved, it takes 15–30 working days to start making the product. For shipping abroad, goods are put in wooden crates or pallets that don't absorb water and don't break easily.
Q: Is it possible to use these logistics and trade terms?
A: Freight both by sea and by land is supported. Quotes can be given under EXW, FOB, and other common international trade terms, and they come with all the necessary export paperwork.
Contact Us
Send your transformer specifications for the Transformer Corrugated Radiator to [email protected] and our engineering team will review your requirements and confirm next steps.
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