Silicon Steel Ei Lamination Toroidal Transformer Core

High Quality Cold Rolled non-Oriented Silicon Steel Toroidal Transformer Iron Core silicon steel ei lamination transformer core

Magnetic Properties

The magnetic properties of the product is featured by its low core loss, high permeability and excellent application performance

Thickness Tolerance

The good thickness tolerance is characterized by small difference in thickness in a direction parallel to the direction of rolling, small difference in thickness in a direction perpendicular to the direction of rolling, and high lamination factor.

Processing Properties

The product is suitable for punching and cutting with excellent dimensional tolerance.

Insulation Coating

The insulation coating has small color deviation, good adhesiveness and excellent resistance to heating and corrosion with high insulation coating resistance. There are several types of insulation coating available for production. According to the test results performed by the professional inspection organizations, the contents of hazardous substances comply with all the prevailing international and domestic environment protection laws and regulations including EU RoHS and REACH regulations.

E-type silicon steel sheet is also known as shell-type or Japanese-type silicon steel sheet. Its main advantage is that the primary and secondary coils share a wire frame and have a higher window space factor (space factor Km: net cross-sectional area and window of copper wire Area ratio); the silicon steel sheet forms a protective shell for the winding, making the winding less susceptible to mechanical damage; at the same time, the silicon steel sheet has a larger heat dissipation area and less magnetic field dispersion from the transformer. However, its primary and secondary leakage inductance is larger and the external magnetic field interference is also greater. In addition, because the average circumference of the winding is longer, under the same number of turns and core cross-sectional area, the EI-type core transformer uses more copper wire.

Jiangyin hengtong was found in 1989.it is a large scale , standardization, consideration, and information all constitute important factors in the development of steel managing enterprises. The company located in jiangyin city-the NO.1 of the TOP 100 cities in China ,faces the shanghai on the east and near the changjiang river on the north ,with the ascendant geographical location and convenient transportation makes goods reach to destination very quickly.

Now we have two companies, jiangyin hengtong ,jiangsu smart motor technology（jiangsu shuaijin） ,about 200 employees ,30% of them is professional and technical talents.jiangyin hengtong is as a window of the group . it got the ISO9001 ROHS SGS ISO14001 IATF16949 and the horner of jiangyin high-tech enterprise,jiangyin key enterprise . it covers about 1300 are and has two set of slitting machine , twelve sets of annealing equipment .more than 50 sets of punching machine and cutting machine. We can produce most of kinds EI type ,UI type and other silicon steel sheet in the market ,Contain the thickness 0.23mm 0.30mm 0.35mm 0.5mm etc .annual quantity is about 50000 ton.

In the past 20 years, jiangyin hengtong made a great achievement in the filed of transformer industry , Power tools industry, household appliances industry, welding industry, automobile manufacturing industry .well-known and trust by the domestic and foreign enterprises ,such as microtek ,luminous , leader,EAGTOP,GREE etc. The products has been sold to US, Brazil ,India ,EGYPT,RUSSIA AND POLAND. Jiangyin hengtong has been the most important punching company in the word .