Unicore cores belong to the family of magnetic cores, and there are more than 10 different types of them. UNICORE is one of the new cores for magnetic circuits, and its technology was developed only in 1997 with the aim to simplify the manufacture technology and to reach better parameters of transformers. Thanks to their construction UNICORE cores are able to replace almost all classical stacked cores. Because of their simplified construction there is no need for time- and cost- consuming production process, and therefore favourable price and short delivery time are achieved. At assembly the existing types of coil forms can be used, and therefore there are no changes in transformer construction needed.

 Types of Unicore:

  • DUO, DG - with a split gap
  • UNCUT - cores without a dividing gap
  • BUTT - produced as C cores

Cores have a corner of 30°, 45° or 90°. New Types of Unicore cores are permanently developed, see our catalogue.

Material of any quality of grain-oriented steel of thickness from 0.10 mm – up to 35 mm is used. It is also possible to use non grain-oriented steel. Unicore cores can weigh up to 1500 kg with a maximum height of 300 mm.

Unicore and its advantages:

Therefore it is possible to economize on both the weight of magnetic circuits and amount of copper used. Advantages of Unicore cores: low specific losses, smaller amounts of copper used, simple assembly, favourable price, core banding is not necessary, short delivery time.

Cores can be delivered annealed and unannealed . Subsequent annealing of the cores reduces the losses by 10 to 30 % according to the core dimension. 

Guarantee of quality is a prerequisite for success and therefore a systematic inspection of the Unicore production is performed.

Unicore is defined by the following parameters:

Window length (WL)     Window width (WW)

Strip width (SW)              Built up (BU)

Strip thickness (ST)  

Corner angle