loading
Professional Toroidal Cores
Manufacturer since 1995

Professional Toroidal Cores Manufacturer since 1998

no data

Excellent Quality & Widely Used

* Range of dimension:

Strip width: minimum 3mm; Inside diameter: minimum 5mm; Outside diameter: minimum 8mm, maximum 1100mm

* Optional treatments of finished core:

1. Uncut, non-impregnated.

2. Uncut, lightly impregnated with epoxy varnish.

3. Cut, fully impregnated with epoxy resin.

4. Multiple-cut, fully impregnated with epoxy resin.

5. Assembled with plastic cases [PP, maximum working temperature 110℃, thickness 0.4~0.8mm].

6. Green epoxy coating [maximum working temperature 180℃, thickness 0.20~0.50mm].

7. Black epoxy painting.

* Material:

High-quality CRGO steels with the characteristics of low iron-loss and high permeability in thickness of 0.05mm, 0.23mm, 0.27mm, and 0.3mm.

* Characteristic:

It is toroidal and wound in the same direction of closed flux path. No magnetic flux leakage. It has the best magnetic performance. It is easy and high-efficiency for coil winding with the toroidal winding machine.

no data
Application

The toroidal core is widely used in 50Hz and 400Hz transformers, current transformers, reactors, chokes, and other magnetic components of electronic equipment.

no data
Why Choose Transmart

Top Manufacturer of toroidal Cores in China since 1995

* Transmart Industrial Limited is an one stop solution provider for magnetic cores and chokes, supplying various magnetic cores in nanocrystalline, amorphous and silicon steels etc., which has over 25 years experience of researching, developing and manufacturing toroidal cores.

* We are a professional manufacturer for world-famous brands. Serving for more than 10000 famous enterprise like RITZ, solaredge, VERIS Industries, TRAFOMEC, FLUKE, ECRIEE-TAMURA, CRRC, BYD etc.

* Our company has more than 300 professional employees and over 38000 sqm modern factory area.   

* Our products own many patents and quality system certifications like RoHS, REACH, ISO9001, IATF16949.

* We have professional R&D team, advanced complete production lines research and develop advanced professional equipment independently for high-precision slitting, automatic winding, vacuum annealing, and multi-wire cutting; implement intelligent production system and lean management mode, monthly output are more than 1000,000 pieces, exported to over 140 countries, like USA, UK, Canada , Australia, New Zealand, Netherlands and other Europe countries.

* Our company attended Canton Fair, CWIEME Berlin exhibition, ELECRAMA New Delhi, China International Industry Fair, China Electronics Fair, Middle East Electricity DUBAIUAE, CWIEME Shanghai, Top 10 Expos of Transformer Industry, Hong Kong Electronics Fair, HANNOVER MESSE, PCIM Europe etc.

* All of our toroidal cores are 100% eco-friendly and 100% strict quality control.

no data
Ask Custom Service & Free Samples or Get E-Specification
Copyright © 2026 TRANSMART INDUSTRIAL LIMITED | Sitemap  | Privacy Policy
Customer service
detect