Our rectangular transformer cores are manufactured using cold-rolled oriented silicon steel (CRGO), which has extremely low losses (≤ 0.8 W/kg); they are also made from cold-rolled non-oriented silicon steel (CRNGO), offering both cost-effectiveness and reliability. Additionally, we offer advanced options such as amorphous alloy rectangular cores and nanocrystalline rectangular cores, which can reduce losses by up to 70%. These are ideal choices for high-frequency rectangular transformer cores in the renewable energy and industrial drive sectors.
The reasons why our customers choose for bulk purchasing are:
Stable quality: The production process has been certified by ISO, ensuring that the quality of each rectangular transformer core remains consistent.
Customized service: Materials, thickness (0.23–0.35 mm) and coating can be customized according to customer requirements to create a unique rectangular iron core.
Flexible supply: Both standard and customized rectangular transformer cores can enjoy bulk discounts and flexible minimum order quantities (MOQ).
Our rectangular magnetic cores adopt a laminated structure and are connected by interlocking joints, which minimizes air gaps and leakage flux, thereby ensuring low loss and high efficiency performance.
We are a professional manufacturer of transformer cores, equipped with an automated high-speed stamping line, a precise lamination system and a controllable annealing process. Our production system is designed to support continuous large-scale orders.
Our structured production plan guarantees stable delivery times and reliable batch consistency.
Each rectangular transformer core is made of high-quality cold-rolled oriented silicon steel sheets. The thickness of the laminations can be controlled, and the insulation coating is uniform.
Technical Highlights:
Controllable hysteresis loss and eddy current loss
Each batch of products undergoes size inspection and magnetic performance verification to ensure that the magnetic flux density remains stable during operation and the temperature rise is minimized.
Technical data sheets and test reports can be provided for engineering evaluation purposes.
We offer flexible customized services to meet your transformer design requirements.
Customization capability:
Special packaging suitable for automated assembly lines
Our engineering team will work directly with your technical department to meet the requirements of the existing drawings or to support the development of new transformer products.
| Industry | Use Cases |
| Power Generation | – High-voltage rectangular cores for grid transformers (10 kV–500 kV) – Low-loss rectangular cores for solar/wind inverters |
| Industrial | – High-efficiency rectangular cores for motor drives – Rugged rectangular cores for welding machines |
| Consumer Electronics | – Compact rectangular cores for SMPS – Fast-response rectangular cores for EV chargers |
| HVAC | – Energy-saving rectangular cores for compressor drives – Quiet-operation rectangular cores for AC units |
Step 1: Provide drawings or parameters
The customer uploads CAD drawings or specifies dimensions, materials, quantities, and purposes.
Step 2: Engineering assessment
Engineers quickly review and confirm feasibility, providing an accurate quote.
Step 3: Sample confirmation
A production sample is provided for the customer to test and install for verification.
Step 4: Mass production
After sample confirmation, start standardized mass production.
Step 5: Global delivery
After completing quality inspection, packaging, and arranging logistics, global export and distribution are arranged.
