Transformer cores are a key component in electrical transformers, facilitating efficient energy conversion. Manufactured from high-grade Grain-Oriented (GO) and Non-Grain-Oriented (NGO) Silicon Steel and Electrical Steel, our product range includes EI, Toroidal, C-cores, and other shapes based on customer specifications.
These cores are designed for High Magnetic Permeability and Low Core Loss, which reduces hysteresis and eddy current losses. This design contributes to a transformer’s operational efficiency, controlled temperature rise, and stability.
We provide customization services based on technical drawings and performance requirements to produce core solutions that align with specific application needs.
Why Choose Us
1. Consistent Quality – Quality is Our Lifeline
With great majority of raw materials from Baosteel, we ensure full in-house production control. Complete testing of mechanical properties with guaranteed thickness/width tolerance compliance.
2. Export Specialists – We Handle the Complexities
As 10+ years serving major overseas manufacturers, we can professionally handle the requirements of compliance, documentation, and shipping with proven track record.
3. Convenient Resources – As Easy As Local Supply
Flexible orders from small batches to large volumes. Multiple shipping options(LCL, FCL, Bulk Carrier) with dedicated after-sales support and regular customer visits.
4. Low Minimum Order & Sample Availability
We accept small orders starting from 0.5–5 tons and provide samples for evaluation, helping you verify quality before bulk purchasing.
Product parameters
| Application | Electronic devices | Phase | Single Phase |
| Coil Structure | Electronic devices | Model Number | 50w470,50w350,35w440,35w330,30w230, |
| Place of Origin | Guangdong, China | Input Voltage | 220V |
| Model Number | High Frequency Transformer | Product name | Ferrite Core Transformer |
| Output Voltage | 12V, 24V, 36V, 48V | Product type | Chopper Transformer |
| Frequency | High Frequency | Core material | MnZn Power Ferrite Magnet |
| Winding material | 100%Copper | Model | Electronic Transformer |
| Ambient Temperature | -40℃ ~ 125℃ |
| Grade | Nominal Thickness (mm) | Theoretical Density (kg/dm³) | Core Loss P1.5/50 (W/kg) | Magnetic Induction B50 (T) | Lamination Factor (%) | ||
|---|---|---|---|---|---|---|---|
| Guaranteed Value | Typical Value | Guaranteed Value | Typical Value | ||||
| 50W470 | 0.5 | 7.7 | ≤3.30 | 2.70-3.00 | ≥1.70 | 1.7 | ≥97 |
| 35W440 | 0.35 | 7.7 | ≤3.00 | 2.50-2.70 | ≥1.70 | 1.7 | ≥96 |
| 30W230 | 0.3 | 7.6 | ≤0.25 | 2.10-2.20 | ≥1.65 | 1.67 | |
Grade Equivalent Chart
| Chinese Standard (GB) | POSCO | JIS | ASTM | EN | DIN |
|---|---|---|---|---|---|
| 50W470 | 50PN470 | 50A470 | M330-50A | M470-50D | V470-50 |
| 35W440 | 35PN470 | 35A440 | M290-50A | M440-50D | V440-50 |
| 30W230 | 30PN230 | 30A230 | M230-35A | M230-35A | V230-35A |
The details above are for our standard parts. For any specific or custom requirements, please feel free to contact us. We also provide tailored solutions.
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Factory certificates & Product Test
To guarantee benchmark quality, every coil undergoes our “inspect-and-retain” protocol:
• Individual samples are taken from each coil and rigorously tested for corrosion resistance, elongation/yield strength, magnetic flux density, core loss, hardness, insulation resistance, and lamination factor—only coils passing all criteria are released.
• Each retained sample is sealed by coil ID and archived for full traceability.
• A digital dossier is created for every coil; scanning its QR code instantly reveals original test data, production batch, and process parameters—true “one coil, one code, lifetime traceability.”
Trust by foreign customers
With over 10 years of export experience, we have delivered thousands of tons to customers in more than 20 countries and earned widespread acclaim.
