Magnetic core since 1995

Core Professional, Core International


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Trade Mark
SG-, HWR-, FA-, SU-, SE-, SM-, CD/XCD-Series; Customized Dimensions
Delivery time
Samples: 8~10 days; Batches: 8~30 days
Payment term
TT or L/C


High-quality CRGO steels with characteristics of low iron-loss and high permeability in thickness of 0.05mm, 0.08mm, 0.1mm, 0.23mm, 0.27mm, 0.3mm, and 0.35mm.


A closed flux path with an open structure can be formed by combining the two halves together. The bobbin and core can be produced separately and then place the core in the bobbin, which can effectively reduce production time.

All cores, unless otherwise stated, are individually tested to guarantee that they quailfy national standards and specifications. Special tests can be conducted by customer's requests.


C-core comes in various specifications and is widely used in 50Hz and 400Hz transformers, current transformers, reactors, chokes, and other magnetic components of electronic equipment.

Specifications of Standard C Cores:


Sony Thomas

Currently, we are in need of a Transformer with input AC 115 VAC ,0.6A, 400 Hz.Output is a single winding with taps at 6.58 VAC, 7.27 VAC, 7.96 VAC.The output current rating is 7.5A. Total four C Cores used for the transformer construction. Can U Plz. let us know whether you can support us in developing this transformer ?.
2017-11-07 20:24:42


Hello, I am looking for Hi-B C cores (0.27 mm, M4 quality) HWR 50/32 and HWR 70/32. Are these available? Thanks
2017-07-31 02:25:01


Hello Paolo, thanks for your inquiry. The HWR50/32 and HWR70/32 are standard sizes that we've been produced a lot. We will contact you later soon by email for your more details. Johnny Zhou from NICORE.
2017-10-25 10:43:02


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2017-05-08 08:25:25


Please provide the drawing dimensions which tells the Notations used in dimension table.
2016-12-06 16:20:39

Edward Nina

I was wondering if I could get a sample drawing? The dimensions are stated but there is no mention of what it is in relation to. For example, is the D dimension the thickness?
2016-11-17 02:49:47
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