Transformer core:  (A series)

A round core wound by automatic machines with one continuous tape of CRGO silicon steel and annealed in a tunnel furnace under the protection of inert gases.

Material thickness: 0.30mm,  0.27mm,  0.23mm, 0.10mm,  0.08mm and 0.05mm

Transformer core: (B series)

 B round core wound by short silicon steel strips in 1 to 3 meters long, wounded with joints. They were annealed in vacuum furnace or tunnel furnace under protection of inert gases. The core posses the same advantages of A series, but the price was around 50-70% less than A series.

B series core commonly used as a replacement of EI and other toroidal transformers with lower magnetic loss requirement.

Material thickness: 0.30mm, 0.27mm, 0.23mm

 

Material Grade	Equivalent Grade	Bm (Gauss)
BI	M3-0.23mm	16500/17000
BII	M4-0.27mm/0.30mm	16000
BIII	M5-0.30mm	15500

Can produce according to customers' specification.

 

Toroidal core application:

Power transformer

Instrument transformer

Audio transformer

Voltage regulators

Inductor

Ballast