Semi-finished products - EI silicon steel lamination

02 · EI Lamination Center

EI silicon steel lamination is a type of magnetic material made by laminating thin sheets of silicon steel to create a core for electrical transformers and other electromagnetic devices. The EI designation refers to the shape of the core, which consists of two E-shaped pieces and one I-shaped piece.

The key advantage of EI silicon steel laminations is their high magnetic permeability, which allows them to efficiently transfer electrical energy between two coils. They also have lower core losses, which means that they save more energy as heat during operation.

Price of EI lamination varies depending on factors such as steel raw material quality, production volume, and market competition.

Here are specifications of regular EI lamination in stock:

Part 1 - Single phase EI sheet

No.	Product name	Total height(mm)	Total length(mm)	Foot length(mm)
1	EI-28	25	28	21
2	EI-30	25	30	20
3	EI-35	29.5	35	24.5
4	EI-38.4	32	38.4	25.6
5	EI-41	33	41	27
6	EI-41-2H/4H	33	41	27
7	EI-42-4H	35	42	28
8	EI-48	40	48	32
9	EI-48-2H/4H	40	48	32
10	EI-54	45	54	36
11	EI-57	47.5	57	38
12	EI-57-2H/4H	47.5	57	38
13	EI-60-4H	50	60	40
14	EI-66	55	66	44
15	EI-66-2H/4H	55	66	44
16	EI-75-4H	62.5	75	50
17	EI-76.2-4H	63.5	76.2	50.8
18	EI-78-4H	65	78	52
19	EI-84-4H	70	84	56
20	EI-85.8-4H	71.5	85.8	57.2
21	EI-96-4H	80	96	64
22	EI-101-4H	82.5	101	66.5
23	EI-114-4H	95	114	76
24	EI-105-4H	87.5	105	70
25	EI-120-4H	100	120	80
26	EI-133.2-4H	111	133.2	88.8
27	EI-150-4H	125	150	100
28	EI-152.4-4H	127	152.4	101.6
29	EI-162-4H	135	162	108
30	EI-168-4H	140	168	112
31	EI-180-4H	150	180	120
32	EI-190.5-4H	158.75	190.5	127
33	EI-228.6-4H	190.5	228.6	152.4
Remark: 1. Pattern and naming: no hole(EI-XX); Single Middle-punched(EI-XX-2H); 4 holes(EI-XX-4H) 2. Tolerance: ±10mm.

Part 2 - three phases EI sheet

No.	Product name	Total height(mm)	Total length(mm)	Foot length(mm)
1	EI-three phase-30CORE-150	135	150	105
2	EI-three phase-38.1CORE-190.5	171.45	190.5	133.35
3	EI-three phase-45.8CORE-228.6	205.7	228.6	160
4	EI-three phase-50CORE-250	250	250	200
5	EI-three phase-60CORE-300	300	300	240
Remark: 1. Pattern and naming: Unpunched(EI-XX) 2. Tolerance: ±10mm.