High Speed Press Stamping Large EI Sheet，Rectangular connector high-speed stamping，High speed stamping of high quality battery connectors

   EI transformers are categorized according to size, and generally the big category is according to the length of silicon steel sheet. For example, the commonly used EI-19, EI-28, EI-35, EI-41, EI-48, EI-57, EI-66, EI-76.2, EI-86, EI-96, EI-114 and so on. The 28, 35, 41 of these refer to the length of the silicon steel sheet.
    Detailed classification should also consider the total stack thickness of the silicon steel sheet, some transformers above the label EI-48 * 20, the 20 is the total stack thickness of the silicon steel sheet is 20mm, so the transformer is EI-48, subdivided under the EI-48 * 20.
    Some places there are in accordance with the width of the silicon steel sheet shekou classification, shekou refers to the E piece of the middle of the protruding part, specifically as shown in the figure mark A, some say EI-16 * 20, of which 16 refers to the shekou width of 16 transformers, check the table to learn that the shekou width of the EI-48 transformer is 16, so the EI-16 * 20 transformer is the EI-48 * 20 transformer.