Toroidal Cores (Rings)

Toroidal Cores (Rings)

Cosmo Ferrites is the leading manufacturer & exporter of Toroidal Cores across the world. We manufacture ferrite toroids in a wide range of sizes, using high grade materials to serve the needs of our customers.

Toroid cores are small MnZn-based soft ferrite cores, also known as ferrite rings or toroidal ferrite cores. They offer the benefit of high magnetic efficiency & high resistance to any external magnetic fields applied. Their cross-section area is uniform and they can have different coatings. We produce these toroid cores in lightweight and with an enclosed loop core. Owing to their small size, ferrite toroids acquire lesser space when used in transformers. Their round shape allows the magnetic flux to escape easily. Hence, they radiate less electromagnetic interference (EMI) making them ideal for the environment. Ferrite rings also have a lower impedance which helps them increase the efficiency & electrical performance of various applications.  

Our Quality & Technology

Cosmo Ferrites is committed to offering high-quality ferrite toroid cores to our customers and sticking to a customer-centric approach. Our technical capabilities & expertise have earned us accreditations for ISO 9001:2015, ISO 14001:2015 & IATF 16949. Our materials comply with RoHS norms as per EU standards and epoxy coating material is UL94 V-0 approved.

Our manufacturing process is integrated with the R&D division. Here, modern & advanced technological improvements are ensured throughout the production of ferrite rings. 

Toroidal Cores Advantages:

  • High magnetic efficiency
  • The cross-section area is uniform
  • The coating on toroidal ferrite cores provides a high breakdown voltage
  • Low impedance 
  • Lightweight & small size 
  • Acquires lesser space 

List of Cores Products

List of Toroidal Cores (Rings) Products


  • EMI/ EMC filter choke
  • Current sensors
  • Clamp meters
  • Transformers
  • Power Amplifiers
  • Low Magnetic Flux Leakage
  • Lighting
  • Mobile Equipment
  • Induction Heating
  • Automotive
  • Solar
  • Power Conditioning
  • Welding Machine
  • Energy Meter