High quality
The best materials, tested products and a certified quality system.
We build and repair toroidal transformers to customer specification, from 20 to 4000 VA, and autotransformers up to 5000 VA.


Trafco was founded in Belgrade in 1990. We build and repair toroidal transformers to customer specification, rated from 20 to 4000 VA, as well as autotransformers up to 5000 VA and output transformers for tube amplifiers.
Our aim is high product quality, low prices, short lead times, respect for customer requirements and keeping to contracts and agreements.
We develop our own software for tracking and managing production, meet technical requirements and standards, use the best materials, train our people and apply ISO standards. All of this keeps our long-standing and new business partners satisfied.
The rules we have worked by since day one, whether for a single customer or a full series.
The best materials, tested products and a certified quality system.
A competitive price at the same quality, for one unit or a full series.
We plan lead times in our own production tracking software.
We wind the transformer to your specification, not from a catalogue.
Contracts and agreements are binding: quantity, quality and delivery date.
Trained staff, technical requirements and ISO standards in everyday work.

Software is central to how Trafco works. To design transformers, we use RALE Engineering software alongside our own experience and expertise.
Since 1996 we have been developing in-house software for tracking and managing resources and production. It holds the complete archive and technical documentation for every transformer we have made and for every customer, and we can show it to you on request.
Companies, institutes and universities that have used our transformers or worked with us for years.
| Full name | “TRAFCO” d.o.o. |
|---|---|
| Tax ID (PIB) | 103892698 |
| Company No. (MB) | 20044462 |
| VAT registered | Yes |
| Registered office | Vlade Obradovića Kamenog 102, 11280 Progar (Surčin) |
| Business premises | Južni bulevar 43a, 11118 Belgrade (Vračar) |
| Invoices and deliveries | Južni bulevar 43a, 11118 Belgrade |
| Phone and fax | +381 11 244 91 04 +381 11 344 17 51 +381 11 344 00 72 +381 11 344 01 95 |
| office@trafco.rs trafcotorusi@gmail.com Invoices: invoice@trafco.rs | |
| Opening hours | Monday–Saturday, 09:00–16:00 |
| Founded | 1990 |
| Quality system | SRPS ISO 9001:2015, EVROCERT |
We are open Monday to Saturday, 09:00–16:00.