Toroidal Cores
Toroidal Cores
AEM Cores produces a wide range of Toroidal Cores.
The range of Toroidal Cores include:
- in both Grain Oriented Silicon Steel and Mumetal.
- Toroids are made to order.
- Lead times vary from between 3-7 working days.
Things you should know about the toroids we make:
- Toroids are individually coded, labeled and test data recorded on a spreadsheet
- We carry slit steel stock in standard sizes depending on material type and availability.
- If your requested strip width is not available we will recommend an alternative, or make up the stack with multiple strips.
- Toroidal cores can be stacked to achieve wide strips for large stacks over 152mm. Composite toroids with an inner core of Mumetal and an outer GOSS core is common, we recommend a 1mm gap between the outside diameter of the inner core and the inside diameter of the outer core.
- Toroids are supplied 'bare' with no paint, tape or insulation.
- Three manual winding machines to cater for small runs and/or very large cores.
- Automated winding machine for bulk orders and mass production.
Each Toroid is tested as per the specification outlined in the relevant pages for GOSS and Mumetal cores. Our Toroids are then individually coded, labeled and its test data recorded on a spreadsheet. Our customers can track the performance of their cores to ensure a consistent Quality Control / Quality Assurance procedure has been followed. This is vitally important for CT's requiring compliance with Australian and New Zealand Standards.
For more information on the Toroidal Cores, please click on the following links:
To contact AEM Cores about Toroidal Cores use Get a quote.
The range of Toroidal Cores include:
- in both Grain Oriented Silicon Steel and Mumetal.
- Toroids are made to order.
- Lead times vary from between 3-7 working days.
Things you should know about the toroids we make:
- Toroids are individually coded, labeled and test data recorded on a spreadsheet
- We carry slit steel stock in standard sizes depending on material type and availability.
- If your requested strip width is not available we will recommend an alternative, or make up the stack with multiple strips.
- Toroidal cores can be stacked to achieve wide strips for large stacks over 152mm. Composite toroids with an inner core of Mumetal and an outer GOSS core is common, we recommend a 1mm gap between the outside diameter of the inner core and the inside diameter of the outer core.
- Toroids are supplied 'bare' with no paint, tape or insulation.
- Three manual winding machines to cater for small runs and/or very large cores.
- Automated winding machine for bulk orders and mass production.
Each Toroid is tested as per the specification outlined in the relevant pages for GOSS and Mumetal cores. Our Toroids are then individually coded, labeled and its test data recorded on a spreadsheet. Our customers can track the performance of their cores to ensure a consistent Quality Control / Quality Assurance procedure has been followed. This is vitally important for CT's requiring compliance with Australian and New Zealand Standards.
For more information on the Toroidal Cores, please click on the following links:
To contact AEM Cores about Toroidal Cores use Get a quote.
AEM Cores makes toroidal cores to order from Grain Oriented Silicon Steel or Mumetal, supplied without paint, tape or insulation. Each core is tested, individually coded and labelled, with results in a spreadsheet so customers can track performance for quality assurance. Current transformer makers requiring Australian and New Zealand Standards compliance can specify strip width and request a composite core.
- Lead times vary from 3–7 working days
- Slit steel stock comes in standard sizes, depending on material type and availability
- Stacked toroids form wide strips for large stacks over 152 mm
- Composite cores commonly pair inner Mumetal with outer GOSS
- Three manual winders handle small runs and large cores; automation handles bulk orders
Source: listing by AEM Cores on IndustrySearch · Updated 2 Nov 2026
AI Overview is generated by artificial intelligence and may contain mistakes.
Written by AI from the listing by AEM Cores on IndustrySearch. It is meant to use only what that listing says, but it can still get details wrong, so check them with the supplier before you buy.
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