Silicon Steel Cores

Tape wound toroidal cores made from soft magnetic materials such as silicon steel, nanocrystalline, and amorphous alloys. These cores made by winding thin strips of grain oriented silicon steel tape or alloy tape around a core fore. The tape is tightly wound to create a toroidal shape, providing a closed magnetic circuit. The alloy consists of the tiny crystalline grains and disordered atomic structure, resulting in high magnetic permeability and low core loss. These cores are widely used in electrical applications. Let's explore their features, and applications: Features:1. High Efficiency: All three soft magnetic materials offer low core losses, enabling efficient energy transfer and reduced power losses. 2. Compact and Lightweight: The toroidal shape of the core provides a compact design, suitable for space-constrained applications. The use of thin tape also results in lightweight cores. 3. High Magnetic Flux Density: Silicon steel, nanocrystalline, and amorphous cores can handle high magnetic flux densities, allowing for high power density designs. 4. Low Electromagnetic Interference (EMI): The toroidal shape reduces electromagnetic radiation and minimizes EMI. Applications:1. Transformers: Tape wound toroidal cores made from these soft magnetic materials are commonly used in power transformers, audio transformers, and instrument transformers. Their high efficiency and low losses make them ideal for power distribution and voltage regulation. 2. Inductors: These cores find applications in inductors for filtering, energy storage, and power factor correction. The compact design and high magnetic flux density make them suitable for high-frequency applications. 3. Current Sensors: Tape wound toroidal cores are used in current transformers for measuring and monitoring electrical currents. The high accuracy and frequency response of these cores make them suitable for power quality monitoring and energy management systems. In summary, tape wound toroidal cores made from soft magnetic materials like silicon steel, nanocrystalline, and amorphous alloys offer high efficiency, compact design, and low losses. They find applications in transformers, inductors, and current sensors, playing a crucial role in various electrical systems.Email: sales@transmart.net Make sure to get notified: Check my website: https://www.transmart.netAdd me on Facebook: https://www.facebook.com/Transmart.Ind.Ltd  Add me on Youtube: https://www.youtube.com/c/TransmartIndustrialLtdAdd me on LinkedIn: https://www.linkedin.com/company/transmart-industrial-limited/  Everything you wanted to know please contact us immediately if you are interested in.

Unicore is developed by Australian engineer which has all the advantages of traditional C and E core but with much lower losses and excitation.

Distributed Gap Core, Wound Core, Unicore for Pole Mounted Transformers  A pole-mounted transformer is a type of distribution transformer that is mounted on a utility pole. It is used to step down the voltage of electrical power from high voltage transmission lines to a lower voltage suitable for distribution to homes, businesses, and other end-users. The pole-mounted transformer typically consists of a transformer unit, which includes the core and windings, mounted on top of a pole. Pole-mounted transformers are commonly used in rural areas or areas with distributed electrical infrastructure.Transmart Industrial offers another solution for distributed gap core. It is a Folded Octagonal Core or called Unicore. The core is folded by special design machines of great precision to achieve the best no-load losses.

Surface finish has a significant effect on the silicon steel core and nanocrystalline core.

Silicon steel CT CORES have good magnetic permeability, low cost, mature manufacturing processes, and are widely used in current transformers. Low magnetic saturation induction strength, and they have higher losses at high frequency.Due to their high magnetic permeability and low cost, silicon steel CT CORES are suitable for mass-produced current transformer products. The thermal stability of silicon steel CT CORES is excellent, allowing them to withstand high temperatures, and their low coefficient of thermal expansion maintains stability in shape and size even at high temperatures. This makes silicon steel CT CORES suitable for use in many high-temperature environments, such as transformers, motors, and other applications where they are widely employed.The shape of the silicon steel CT core can be rectangular or toroidal, with or without cutting, depending on the specific technical design and requirements.

Chamfered toroidal core also called edge-grinded toroidal core.Tape wound toroidal cores are with right-angled edges, which are very sharp and dangerous.The sharp edges will cut through insulation tapes and damage copper wires wound on the core.Transmart uses CNC machines to chamfer toroidal cores according to customer requests, radius from 1mm to 5mm, smooth edges finishing. Advantages of chamfer coresSmooth round edgesProtect insulation tapeProtect copper wiresShorter coil length ( less copper used, save money) 

Transmart Industrial Limited has been manufacturing wound cores with Domain-Refined Grain oriented Silicon Steel Grade 23JGSD085 for more than 10 years. Material characteristics:-        Domain-refined materials ( you can see clear lines on surface of the materials)-        Ultra-low iron loss: typical values 0.78W/Kg at 1.7 Tesla 50Hz-        High magnetic flux density: 1.88T at 800 A/m-        Heat resistant: materials can withstand annealing temperature up to 820℃, without affecting magnetic properties. Best applications: High quality tape wound cores for -        Current transformer cores-        Hall effect current sensor cores-        Current transducer cores Transmart is contributing its strength for the carbon peak in 2030 and carton neutral in 2060, by producing high quality magnetic cores with lower iron losses. Please contact us for your high quality cores, you will enjoy the benefits of energy savings! 

INSTRUMENT TRANSFORMER CORESTransmart Industrial manufacturer tape wound cores for current transformers and voltage transformers with the following materials:Grain oriented silicon steels: Thickness of 0.05mm, 0.08mm, 0.10mm, 0.20mm, 0.23mm, 0.27mm, 0.30mm and 0.35mm. Material width 5mm minimum.VARIOUS SHAPE CORES AVAILABLEToroidal core, oval core, rectangular core, cross-section core C cut core, Gap core.

O CORE: An ideal core for audio transformer require extremely low magnetic leakage, low noise and high efficiencyO core also known as O-core or OA-core.O core is a tape wound core in electrical steel, with circular cross section.The key point of manufacturing an O core is material slitting, which is called curve slitting, material is slit into a continuous strip from small to big, and then from big to small in width. After the cores are wound, they are put into vacuum furnace for stress relief annealing, so that the cores with the best electrical performance.Standard core sizes from 10VA to 2000VA.FeaturesCircular cross sectionClosed magnetic pathLow magnetic leakageLow noiseHigh efficiencyAPPLICATIONS1.High-end transformers in Audio system2.Elevator transformer3.Machinery transformerOA cores can be supplied epoxy coated, cut or uncut.

We manufacture Tape Wound Cores for Current Sensors with the following soft magnetic materials:-Grain oriented silicon steel 23JGSD085, 23JGH090 ( JFE Japan)-Grain oriented silicon steel 23ZDMH085, 23ZH090 ( Nippon steel Japan)-Grain oriented silicon steel B23P085 ( Baosteel)-Grain oriented silicon steel 23SQGD085, 23SQG090 ( Shougang)-Fe-based Nanocrystalline ribbon 1K107B-Fe-based Amorphous ribbon 1K101APPLICATIONS1.Current sensors for automotive industry2.Current sensors for automation control industry3.Current Transducers

Do you find the difference among the cores?Try and check ou the effect of laser scribing on grain-oriented silicon steel

Transmart Industrial manufactures a wide range of strip wound C-cores and E-cores, in standard ranges : Chinese, British, European and America.  All of which can be supplies to various electrical specifications. Customized sizes are welcome as Transmart is flexible to satisfy customer various demands.SERVICEC-coes and E-cores can be supplied with Stainless steel bands made specifically for each core.