Metalink Toroidal Core
High-Efficiency Low-Loss Industrial Toroidal Core
Low leakage flux, minimal core loss, quiet operation, closed magnetic circuit design. METALINK is a reliable toroidal core manufacturer and direct factory supplier, focusing on R&D and mass production of high-quality silicon steel, amorphous, and nanocrystalline toroidal cores. Perfectly matching transformers, CTs, reactors, and new energy power equipment.
Premium Toroidal Core Overview
At Metalink , we specialize in designing and manufacturing high-performance toroidal cores for a wide range of power and magnetic applications. With decades of expertise and advanced production facilities, we deliver cores that maximize efficiency, minimize losses, and fit seamlessly into your most demanding designs.
The METALINK Toroidal Core is a high-performance closed-loop soft magnetic component manufactured by integral continuous winding without air gaps, serving as the optimal industrial magnetic core for various electrical and electronic equipment.
Compared with traditional stacked iron cores, our custom Toroidal Core features a fully closed magnetic circuit, ultra-low flux leakage, and low temperature rise during long-term continuous operation.
Adopting high-grade oriented silicon steel, amorphous alloy and nanocrystalline raw materials, each METALINK Toroidal Core comes with high magnetic permeability, stable magnetic performance and extended service life.
Our low loss Toroidal Core adapts perfectly to both power frequency and high-frequency working conditions, widely applied in power distribution, industrial automation, medical precision equipment, new energy charging and rail transit industries.
METALINK supplies ready-to-ship standard Toroidal Core and full-size non-standard custom Toroidal Core to meet all industrial soft magnetic supporting requirements
——Why Choose Our Toroidal Core?
4 Core Advantages of Our Custom Toroidal Core
Ultra-Low Flux Leakage
Adopting an integral one-piece winding structure, each METALINK Toroidal Core eliminates magnetic circuit breakpoints, effectively reducing flux leakage and improving the overall energy efficiency of supporting equipment.
High Magnetic & Low Core Loss
Our premium Toroidal Core is produced with high-quality raw materials featuring low coercivity and ultra-low power loss. Under full-load working conditions, the Toroidal Core heats evenly and slowly without magnetic performance attenuation at high temperatures, effectively avoiding equipment overheating, operational failures and unexpected shutdowns for all power and industrial control systems.
Low Vibration & Quiet Operating
Reduced magnetostriction and excellent structural integrity result in virtually silent performance, perfect for medical equipment, audio systems, and residential installations.
Compact & Lightweight
Our compact Toroidal Core simplifies equipment miniaturization and integrated installation, effectively saving internal space for compact industrial and new energy equipment design and assembly.
——Toroidal Core by Material Type
- METALINK covers all industrial soft magnetic requirements.
Silicon Steel Toroidal Core
Cost-effective general-purpose core for power frequency transformers and instrument transformers.
Amorphous Toroidal Core
Ultra-low loss energy-saving core for new energy and high-end power transmission.
Nanocrystalline Toroidal Core
High-frequency high-performance core for precision testing instruments and medical power supplies.
——Custom Sizes for Toroidal Cores
Available from OD 5mm up to 1200mm. Custom OD/ID/height/stacking factor, rapid prototyping and volume production.
Model | OD （mm） | ID (mm) | H (mm) |
|---|---|---|---|
TC6 | 6 | 3 | 3 |
TC8 | 8 | 4 | 4 |
TC10 | 10 | 6 | 3 |
TC20 | 20 | 10 | 6 |
TC30 | 30 | 18 | 10 |
TC45 | 45 | 25 | 15 |
TC60 | 60 | 35 | 35 |
TC85 | 80 | 50 | 35 |
TC110 | 110 | 65 | 45 |
TC140 | 140 | 78 | 50 |
TC160 | 160 | 90 | 60 |
TC200 | 200 | 110 | 70 |
TC300 | 300 | 170 | 90 |
TC400 | 400 | 330 | 35 |
TC700 | 700 | 600 | 20 |
TC1000 | 1000 | 950 | 12 |
——Production Process of Toroidal Core
From raw material inspection, precision winding, edge passivation, vacuum annealing, and insulation curing to final product testing, every toroidal core complies with ISO 9001, RoHS, and IEC international standards.
Our Fully Automated Winding Process VS. other companies' semi-automated methods.
Our Vacuum Annealing, compared to conventional annealing, enhances the performance of toroidal cores and prevents sintering.
The smooth round structure of METALINK Toroidal Core is fully compatible with automatic winding machines for high-efficiency mass production.
——Gallery of Toroidal Core
- All Toroidal Core for transformers undergo professional vacuum impregnation and epoxy resin coating reinforcement, with reliable insulation, outstanding moisture-proof, anti-corrosion and anti-aging properties.
- Our Toroidal Core is packaged in waterproof, moisture-resistant packaging for long-term sea transportation.
- The sturdy construction withstands frequent loading and unloading during transport.
Committed To 100% Customer Satisfaction
- All Toroidal Core for transformers undergo professional vacuum impregnation and epoxy resin coating reinforcement
- Reliable insulation, outstanding moisture-proof, anti-corrosion and anti-aging properties.
- Surface roughness Ra≤0.6μm by laser burring technology
Trust and Worth
Our Partners
Our Shows
SMART ENERGY
Tokyo, JP
POWER EXPO
Atakent, KZ
ENERGY NEXT
Sydney, AU
ELECTRIC & POWER
Ho Chi Minh, VN
What Our Clients Say
Testimonials
Distributor
Spriha Baid
"My customers require a variety of transformer cores, and Metalink's one-stop service always allows me to respond to customers quickly."
Manufacturing Plant Manager
Sushant Shekhar
"The automated slitting lines and maintenance training programs from your team transformed our production line. Downtime reduced by 30%, and our team is more skilled than ever!"
European Transformer OEM
Slivina
"Their CRGO coils reduced our core loss by 25%, and their ISO-certified logistics ensured on-time delivery every time. This partnership has been a game-changer for our renewable energy projects."
Power Grid Engineer
Anastasiia
"Your IEC 60404-8 certified silicon steel coils met the strict standards of our utility grid. The data sheets and compliance reports were a breeze to integrate into our procurement process."
Get Your Ideal Toroidal Core Solution Today
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Frequently Asked Questions
Standard off-the-shelf METALINK Toroidal Core for fast global delivery; non-standard custom METALINK Toroidal Core with customized inner diameter, outer diameter, core width and stack thickness as requested, about 15 days.
Power & Energy: Toroidal transformers, isolation transformers, autotransformers, and reactors.
Power Electronics: SMPS transformers, output chokes, DC link inductors, and common-mode chokes.
Renewable Energy: Solar inverters, wind turbine converters, and energy storage system magnetics.
Medical & Laboratory: Low-leakage isolation transformers for patient safety and precision instruments.
Audio & Instrumentation: Ultra-quiet, low-noise power supplies for high-fidelity audio and sensitive measurement equipment.
Measurement & Protection: High-accuracy current transformers (CTs) and Rogowski coils for metering and protective relaying.
METALINK provides one-stop professional custom Toroidal Core solutions according to customers’ special technical parameters, installation space and actual working condition demands. Our professional engineers offer free technical selection and magnetic parameter calculation for all Toroidal Core projects. We support drawing customization, sample reproduction and new product prototype development, with short production cycles and fast bulk global delivery. Complete technical guidance and after-sales support are provided to solve all your Toroidal Core selection and customization problems.