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Toroidal Nanocrystalline Core With Stainless Steel Protection for Power Transformers
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Toroidal nanocrystalline core with durable stainless steel protection for power transformers. Ultra-high permeability (≥80,000) and low core losses improve efficiency by up to 30%. Customizable sizes, corrosion-resistant, and suitable for frequencies up to 100 kHz. Backed by 20+ years of manufacturing experience and global export reliability.
Negotiable
MOQ: 1 Piece (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, Nanocrystalline + Stainless Steel
Application:
Other, Power Transformers
shape:
Toroidal
Payment & Shipping
Payment Methods:
Port of Shipment:
tianjin shanghai qingdao
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Nanocrystalline + Stainless Steel
Application
Other, Power Transformers
shape
Toroidal
permeability
High (e.g., >100,000)
core_loss
Low (e.g., <10 W/kg)
size
Customizable
protection
Stainless Steel Coating
finish
Rust-resistant
operating_temperature
-40°C to +150°C
winding
Optional (upon request)
As a trusted manufacturer with over 20 years of experience in the wire mesh and magnetic core industry, Anping County Boli Hardware Wiremesh Products Factory proudly presents our Toroidal Nanocrystalline Core with Stainless Steel Protection for Power Transformers. These cores are engineered to deliver exceptional magnetic performance while resisting environmental corrosion, making them ideal for high-efficiency power transformers. Our stainless steel encapsulation not only shields the core from moisture and mechanical damage but also ensures long-term reliability in demanding applications. With an annual export value of US$5–10 million and a global customer base, we are committed to providing high-quality, customizable solutions that meet the rigorous standards of modern power electronics.
Key Features & Technical Advantages
- Superior Magnetic Properties: Nanocrystalline material offers ultra-high permeability (up to 100,000+) and extremely low core losses, significantly improving transformer efficiency and reducing energy waste.
- Stainless Steel Protection: A robust, corrosion-resistant stainless steel jacket encases the core, preventing rust, oxidation, and physical damage during handling and operation.
- Toroidal Shape: The closed-loop toroidal geometry minimizes electromagnetic interference (EMI) and leakage flux, ensuring stable performance in power transformer applications.
- Wide Operating Temperature Range: Suitable for environments from -40°C to +150°C, maintaining consistent magnetic characteristics across various thermal conditions.
- Customizable Dimensions: Available in a wide range of outer diameters, inner diameters, and heights to fit specific transformer designs and power ratings.
- Low Hysteresis & Eddy Current Losses: The amorphous-nanocrystalline structure reduces hysteresis and eddy current losses, enabling higher frequency operation (up to 100 kHz) without overheating.
- Eco-friendly & Durable: No harmful substances; long service life reduces replacement frequency and maintenance costs.
Typical Specifications (Reference Values)
| Parameter | Value |
|---|---|
| Initial Permeability (μi) | ≥ 80,000 (typical) |
| Saturation Flux Density (Bs) | 1.2 – 1.4 T |
| Core Loss (at 50 kHz, 200 mT) | |
| Curie Temperature | > 600°C |
| Protection Layer Thickness | 0.3 – 1.5 mm (customizable) |
| Operating Frequency Range | 50 Hz – 100 kHz |
| Available Outer Diameter (OD) | 20 mm – 200 mm (custom) |
Benefits for Your Application
- Higher Efficiency: Reduced core losses directly translate to lower energy bills and cooler operation, ideal for green energy transformers and UPS systems.
- Longer Lifespan: Stainless steel protection prevents rust, especially in humid or harsh environments, extending the core's service life by years.
- Compact Design: High permeability allows smaller core sizes for the same power rating, saving space in your equipment.
- Noise Reduction: The toroidal shape and nanocrystalline material significantly reduce audible noise and vibration compared to traditional laminated cores.
- Easy Integration: Pre-assembled with optional winding support, our cores are ready for direct installation into your transformer housing.
Why Choose Boli Hardware?
Since our establishment in 1998, we have been dedicated to manufacturing high-quality magnetic components. Our factory in Hengshui, Hebei, China, is equipped with advanced production lines and rigorous quality control systems. With an annual export value of US$5–10 million, we serve clients across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and more. Our team offers fast sample delivery, competitive pricing, and full customization support. We also provide OEM/ODM services to meet your specific requirements. Contact us today to request a quotation or discuss your custom toroidal nanocrystalline core needs. Let us help you power your transformers with reliability and efficiency.
Frequently Asked Questions (FAQ)
-
Q: What is the main advantage of stainless steel protection over standard epoxy coating?
A: Stainless steel offers superior mechanical strength, corrosion resistance, and thermal conductivity. It protects the nanocrystalline core from physical damage, moisture, and oxidation, especially in harsh industrial or outdoor environments. -
Q: Can I get custom dimensions for my transformer design?
A: Absolutely. We offer fully customizable outer diameter, inner diameter, and height. Please provide your required dimensions and tolerance, and we will produce cores to your exact specifications. -
Q: What is the typical permeability of your nanocrystalline cores?
A: Our toroidal nanocrystalline cores typically have an initial permeability (μi) of 80,000 or higher, with some grades reaching 100,000+. The exact value depends on the specific material composition and heat treatment. -
Q: Are these cores suitable for high-frequency transformers (e.g., 50 kHz)?
A: Yes. Nanocrystalline cores are designed for medium to high-frequency applications, including 50 kHz. The low core loss and high saturation flux density make them excellent for switch-mode power supplies and inverters. -
Q: Does the stainless steel protection affect magnetic performance?
A: The stainless steel jacket is non-magnetic (austenitic grade) and does not interfere with the magnetic flux path. It acts as a mechanical shield without adding significant eddy current losses. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes, MOQ is typically 100 pieces. For custom designs, please contact us to discuss your quantity requirements. We can accommodate both small trial orders and large production runs. -
Q: How long does it take to ship samples?
A: Sample production usually takes 7–15 working days, depending on the complexity. We ship via express (DHL, FedEx, UPS) or as per your preferred logistics. Our port of shipment includes Tianjin, Qingdao, Shanghai, and Foshan. -
Q: Do you provide any warranty?
A: We offer a 12-month warranty against manufacturing defects. Our quality control team ensures every core is tested for permeability, dimensional accuracy, and visual appearance before shipment.
Send Inquiry to This Supplier
Mr. Geng Xiaozhong
Sales Manager
2Yrs
Hengshui, Hebei, China
2Yrs
Business Type
Manufacturer
Year Established
1998
Annual Export Value
US$5 Million - US$10 Million
Port of Shipment
Tianjin, Qingdao, qingdao, shanghai, foshan
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