ToroidCore MagneticsCore & Magnetic Component Manufacturer
Direct Manufacturer · Built to Your Drawing

Precision Cores & Magnetic Components

Silicon steel, nanocrystalline and ferrite cores for transformers, reactors, sensors and power electronics — custom engineered to your drawings with ±0.1 mm precision.

12+
Years of Export
500+
Custom Models
30+
Countries Served
98%
Repeat Orders
01 · About

Engineering the Core of Power

Founded in 2012, we focus on magnetic cores — silicon steel wound cores (toroidal, C-cut, stepped JTR and Unicore), nanocrystalline cores and ferrite cores — serving transformers, reactors, sensors and power electronics. We cover the complete process from slitting, winding and annealing to varnish impregnation, cutting and inspection, all under in-house control. From a single sample to container-level production, we deliver consistent magnetic performance and dimensional accuracy.

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02 · Products

Product Range

Click any product to view photos and full specifications — every dimension is customised to your drawing.

Home›Products
6 products
Silicon Steel Toroidal Core
OD-Core
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Silicon Steel Toroidal Core
Grain-oriented silicon steel toroidal cores for instrument transformers, power transformers and reactors.
C-Core
CD-Core
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C-Core
Cut cores for single-phase transformers & reactors, easy coil assembly.
Silicon Steel Sensor Core
SENSOR-C
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Silicon Steel Sensor Core
Precision C-type cut cores for sensors — machined to tight tolerance, low residual magnetism, any size made to your drawing.
Stepped Core (JTR Type)
JTR / C-JTR
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Stepped Core (JTR Type)
Multi-step lamination cores, JTR type. Cut version is C-JTR. Optional two-component black paint, custom sizes to your drawing.
Unicore Core
UNICORE
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Unicore Core
Unicore type rectangular-window wound cores in grain-oriented silicon steel, secured with green banding tape, sized to your drawing.
Three-Phase 3D Wound Core
TRI-3D
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Three-Phase 3D Wound Core
Three-phase three-column 3D wound core with symmetrical magnetic path and low no-load loss, for oil-immersed and dry-type distribution transformers.
03 · Process

How We Manufacture

From drawing to shipment — ten controlled steps covering silicon steel, nanocrystalline and ferrite cores.

01

Drawing Review

Confirm drawing, material (silicon steel / nanocrystalline / ferrite) and lead time within 24 hours.

02

Incoming Inspection

Inspect incoming strip and powder: grade, thickness, width, core loss and batch consistency.

03

Material Preparation

Slitting of silicon steel / nanocrystalline strip; batching and granulation of ferrite powder.

04

Forming

Winding for wound cores; pressing for ferrite cores — formed to the dimensions on your drawing.

05

Heat Treatment

Hydrogen annealing for silicon steel / nanocrystalline, sintering for ferrite — stress relief and stable magnetic properties.

06

Varnish Impregnation

Vacuum varnish impregnation and curing where required — rust-proof, insulating and structurally rigid.

07

Machining

Cutting and grinding of cut faces and air gaps; ferrite cores ground to tolerance.

08

Cleaning & Drying

Clean residue from surfaces and cut faces, then dry before inspection.

09

Sorting & Inspection

Full inspection of dimensions, appearance and magnetic performance, core by core.

10

Packing & Shipping

Moisture-proof, rust-proof packing and shipment on schedule.

04 · Custom OEM

Custom Core Manufacturing

Send us your PDF or CAD drawing and our engineers will review it within 24 hours. We support custom dimensions, materials, annealing processes and surface treatments for both prototypes and mass production.

Supported formats
PDFDXFDWGSTEPSTPIGESZIP
  1. 01Upload drawing
  2. 02Engineering review
  3. 03Quotation & sample
  4. 04Mass production

Upload Your Drawing

Drag & drop your drawing here, or click to browse
PDF · DXF · DWG · STEP · STP · IGES · ZIP — up to 20 MB
05 · Contact

Get in Touch

Have a question or a drawing to discuss? Leave a message and we will reply within 24 hours.

Address
No. 88 Industrial Park, Foshan, Guangdong, China
We reply within 24 hours

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