Rectangular Silicon Steel Sheet Laminations Cut Core
Oct 22, 2025
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A silicon steel sheet lamination cut core is a laminated magnetic core for transformers and inductors, made by cutting thin, insulated sheets of silicon steel into specific shapes, like 'E' and 'I' pieces. This lamination process is crucial because it creates a core with low energy loss from hysteresis and eddy currents, which are significantly reduced by the insulation between the thin sheets of steel. The core can be manufactured using various methods, such as laser cutting for precision and efficiency.
Benefits of using laminated cores
- Lower energy loss: The insulation between the laminations significantly reduces energy loss due to eddy currents, leading to higher efficiency.
- Higher performance: It enables smaller, more efficient, and reliable magnetic components.
- Reduced noise: Laminations can also reduce noise and vibration (magnetostriction) in the finished product.
- Durability: The use of laminations extends the service life of electrical equipment.
laminated core Manufacturing and types
Shapes:
The most common shapes for cut cores are EI (E-shaped and I-shaped pieces) and C-cores, with both oriented and non-oriented silicon steel available depending on the application.
Manufacturing methods:
Cutting can be done using methods like die cutting or more precise methods like laser cutting.
Assembly:
The individual laminations are either stacked or welded together, with specialized cuts available to improve performance and ease of assembly.
Customization:
Cores can be customized for specific applications, including the thickness of the steel, the material grade, and the dimensions.
Silicon Steel specification
| Material | Cold-Rolled Oriented Silicon Steel/Non-Oriented Silicon Steel |
| CRGO: 20ZDKH75, B20P075, B20P070, B18R070 B23G110, B23G100, B23P100, B23R095, B23R090, 23ZH90, 23QG090 B23R080 27Q120, 27QG100, 27QG095, B27P120, B27P100, B27P095 30Q130, 30Q120, 30QG105; B30G130, B30G120, B30P120, B30P105 35Q155, B35G155, 35Z155 |
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| CRNGO: B35A270, B35A250, B35A230, B35A300, 35WW270, 35WW250, 35WW230 B50A Grade 800, B50A600, B50A470, B50A400, B50A310, B50A290, B50A250, B50A1300, B50A1000 |
|
| Form | Annealed / Non-Annealed / Rectangular/ Three Phase / Single Phase |
| Dimension | Width: 3-300mm; Length: 3-2500mm |
| Thickness | 0.1mm, 0.18mm, 0.20mm, 0.23mm,0.27mm,0.30mm,0.35mm, 0.5mm |
GNEE Featured Products
Gnee provides premium iron cores to the world. Our cores can be selected in a wide range of materials, shapes, applications, manufacturing techniques, etc., to meet customers' diverse demands. Explore our wide product range now~
Manufacturing Process
1. Raw Material Sourcing
2. Slitting
3. Punching
4. Laminating
5. Core Forming
6. testing
GNEE EC
Founded in 2008 and located in Anyang in China, Gnee Electric is a high-tech enterprise specializing in researching and manufacturing iron core products.
The company currently occupies over 20,000 square meters and employs more than 200 people, including over 80 professionals. After more than 18 years of development, we have built our own magnetic material production base and independently develope, produce, and sell various kinds of iron cores. The common types include silicon steel cores, motor cores, transformer cores, toroidal iron cores, special-shaped cores, custom cores, and others. Our cores are widely applied in different sectors including transformers, motors, mutual inductors, voltage stabilizers, welding machines, magnetic amplifiers, and instrumentation, providing diverse core solutions to global customers.
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Why Choose GNEE EC?
GNEE EC was founded in 2008, which is a National High-tech Enterprise & Famous Brand Enterprise in China, developing into a professional manufacturer and supplier of high-quality iron cores.
18+
Over 18 years of success in the iron core industry;
National High-tech Enterprise & Famous Brand Enterprises in China;
200+
Over 200 employees;
The R&D team has more than 80 experienced engineers and the production team has more than 100 skilled staffs;
35+
Annual turnover up to 35 million dollor per year;
Owns many sets of highly automatic winding, annealing, and assembling machines;
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Over 1000 customers in domestic and overseas markets;
core Products are exported to more than 70 countries in the world;
Gnee Iron Core Factory Overview
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CEO
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Industries Served
Automobile Industry
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Transformer Applications
Our Mission
Strive To Create world-class Iron core brand
With 18 Years of industry experience, we focus on the research, development, and manufacturing of high-quality iron cores for electricity, industrial control, new energy, and automotive markets