Thin Gauge FeSi Core

Ultra Thin Silicon Steel Core

      Conventional silicon steels are 3% silicon which are produced to the thickness of 0.35mm, 0.30mm, 0.27mm, 0.23mm, 0.20mm and 0.18mm, which are widely used for electrical power transformers and electrical components, and they are operated at industrial frequencies.

      However, thin gauge silicon steels have advantages for applications at higher frequencies, which keep eddy current losses to a minimum level.

Application

      WACORES produces C-core, Toroidal Core, Block Core in 0.10mm and 0.05mm thickness thin gauge silicon steels. 0.10mm thickness cores commonly for frequencies below 1KHz, and 0.05mm thickness cores for higher frequencies. The main core applications are :

      - Power transformers

      - Instrument transformers

      - Reactors

      - High-voltage direct current ( HVDC) transmission system

      - Welding equipment

      -  Medical equipment

Advantages

Very low core losses

      Compared with conventional thick electrical steels, thingauge electrical steel strips have very low core losses because of very small eddy current occurrence.  The advantages of thingauge electrical steel strips are apparent at high frequencies, and they assist in energy saving and down-sizing high-frequency reactors, transformers, and motors.

High saturation flux density

      Thin gauge electrical steel strips contribute to downsizing of high frequency reactors and transformers due to high saturation flux density. 

High permeability

      Thin-gauge electrical steel strips have high permeability, which allows use in shields.

Excellent insulation coating

      Thin gauge electrical steel strips have inorganic insulation coating. The inorganic coating allows excellent insulation, which enables the best stress relief annealing.

Quality & Reliability

RoHs compliance

Material

Grain Oriented ultra thin silicon steel grades: GT-100, GT-080, GT-050 from Japan.

Ultra-thin: 0.05mm, 0.08mm, 0.10mm thickness.

Supplier: Nikkindenji Japan.

Download Magnetic properties of thin-guage silicon steel strips

Capability

Limit dimensions:

      Min. width:5mm;

      Max width: 300mm;

Main processes:

      Slitting -> Winding -> Annealing->varnishing->cutting->Polishing->testing

Optional finishes:

      - Varnish;

      - Epoxy coating;

      - Black paint;

      - Chamfered or radiused edge;

      - C-core with single or multiple cuts

      - E-core with single or multiple cuts

      - Toroidal core cut in half;

      - Gapped to meet your inductance requirements

      - Block core

Standards

      The cores can be produced according to IEC60635, other country standards and also customized requirements.

Quality control

      - On magnetic and mechanical quality of silicon steel;

      - On physical dimension control of wound cores;

      - On annealing process;

      - On magnetic and dimensional values of finished cores;

      - On packaging.