



High-Performance Core Manufacturing Expert
Nanocrystalline · Amorphous · Silicon Steel · Custom Magnetic Cores
Professional magnetic solutions for global customers
Complete Production Process
From raw materials to finished product, 13 precision steps ensure exceptional quality.

Raw materials preparation
Raw Material Preparation
Select high-performance soft magnetic alloy materials and verify their composition and properties to ensure compliance.

Strip Processing
Strip Treatment
Stress-relief annealing of the strip to enhance its soft magnetic properties and formability.

Cut
Shearing
Slit the coil into strips of the required width, ensuring dimensional accuracy and surface quality.

Stamping
Stamping
Form the initial shape of the core by stamping strip material through a die.

Deburr
Deburring
Remove burrs after stamping, improve core surface finish, and prevent performance issues.

Winding/Stacking
Stacking/Winding
Assemble or wind the C-shaped stamped laminations according to process requirements to form the core blank.

Heat Treatment
Heat Treatment
Anneal the core to relieve internal stresses, improving magnetic performance and stability.

Dip-coated insulation
Varnish Insulation
Immerse the core in insulating varnish to enhance insulation and reduce magnetic losses.

Dry and cure
Drying/Curing
Dry and cure the varnished core to ensure complete curing of the insulation varnish.

finishing
Precision Machining
Precision machining of core dimensions to ensure dimensional accuracy and flatness requirements.

Performance Testing
Performance Testing
Inspect the magnetic properties, dimensions, and appearance of the core to ensure compliance with standards.

Packaging Inbound
Packaging/Storage
Protect qualified products, apply labels, store in inventory, and await shipment.
Our Product Line
Three Core Magnetic Core Product Lines: Nanocrystalline · Amorphous · CRGO Silicon Steel, Covering All Power and Energy Efficiency Applications
1. Nanocrystalline Cores

Ring core
High permeability, low loss – ideal for current transformers and precision measurement applications
View details →
C-type core
Easy to assemble and disassemble for winding; widely used in high-frequency transformers and power electronic equipment.
View details →
E-type core
Classic structure design for switch-mode power supplies and inductors
View details →
U-shaped core
Superior magnetic performance, optimized for EMI filters and photovoltaic inverters.
View details →
Cut the core
High-precision cutting process meets customized magnetic circuit design requirements.
View details →
Block Core
Compact and stable design for high-power, high-frequency power electronics applications.
View details →
Custom Cores
Supports customization of specifications, dimensions, and performance to meet special application requirements.
View details →Main Applications:
Current Transformers · Precision Instrument Transformers · Photovoltaic Inverters · High-Frequency Transformers · EMI Filters · Power Electronics
II. Amorphous Cores

Ring core
Ultra-low core loss and high permeability for energy-efficient transformers and instrument transformers.
View details →
C-type core
Flexible, easy-to-assemble structure; widely used in distribution transformers and power electronics.
View details →
Cut the core
Precision cutting and machining to meet customized magnetic circuit and installation requirements.
View details →
Transformer Core
Designed for energy-efficient transformers to significantly reduce no-load losses.
View details →
Custom Cores
Supports custom specifications and dimensions to fit diverse specialized application scenarios.
View details →Main Applications:
Distribution Transformers · Energy-Efficient Transformers · Current Transformers · Power Electronics
3. CRGO Silicon Steel Core
India Market Focus / For India MarketCommon Grades:M4 · M5 · 23ZH90| Common Thickness:0.23mm · 0.27mm

Ring core
Features grain-oriented silicon steel winding for superior magnetic performance, compatible with various transformers and instrument transformers.
View details →
C-type core
Stable structure, easy to assemble; widely used in distribution transformers and power equipment.
View details →
Cut the core
Precision cutting process, low magnetic circuit loss, tailored to custom design requirements.
View details →
Winding transformer core
Professional winding process, optimized for power and distribution transformers.
View details →
Transformer core laminations
High-precision punching and stacking; full range of specifications for oil-immersed and dry-type transformers
View details →
Custom Cores
Full customization for grade, thickness, and dimensions to meet special project requirements.
View details →Main Applications:
Power Transformers · Distribution Transformers · Oil-immersed Transformers · Dry-type Transformers · Current Transformers
IV. Industrial Furnace Series

Magnetic Annealing Furnace
Magnetic Field Annealing Furnace
Anneal in a magnetic field to optimize the magnetic domain structure.
View details →
Atmosphere Protective Annealing Furnace
Protective Atmosphere Furnace
Inert gas protection to prevent oxidation and decarburization
View details →
Vacuum annealing furnace
Vacuum Annealing Furnace
High-vacuum environment, pure annealing process
View details →
Continuous Mesh Belt Furnace
Continuous Mesh Belt Furnace
Automated continuous production with a daily capacity of 5-15K pcs
View details →
Pusher Furnace
Pusher Plate Furnace
Reliable Batch Heat Treatment Solution
View details →
Box-type resistance furnace
Box Resistance Furnace
Universal heat treatment equipment with simple operation
View details →
Bell-type Annealing Furnace
Bell-Type Annealing Furnace
Heat treatment for medium to large-sized workpieces
View details →
Vertical Annealing Furnace
Pit-Type Annealing Furnace
Vertical loading saves space
View details →
Induction Heating Furnace
Induction Furnace
Energy-efficient, heats up fast
View details →Why Choose Wansheng Ferrite Cores
Leading technology, reliable quality—delivering the optimal magnetic material solutions for you.
Core Magnetic Products: Key Advantages
High magnetic permeability
≥100,000
Excellent initial permeability
Ultra-low core loss
≤0.3 W/kg
Low energy consumption with significant savings
Precision Manufacturing
±0.05mm
Precise Dimensional Tolerance Control
Exceptional Stability
-40℃~+130℃
Stable operation over a wide temperature range
RoHS Environmental Certification
100% Compliant
Eco-friendly materials, meeting international standards
Core Advantages of Industrial Electric Furnaces
Precise Temperature Control
High-precision temperature control system ensures stable heat treatment temperatures.
Even heating
Optimize the heating system and furnace structure to improve temperature uniformity.
Process-controlled
Supports programmable control for heating, holding, and cooling cycles.
Performance boost
Optimize heat treatment processes to improve magnetic core performance consistency.
Energy-efficient
Optimized heating and insulation structure to reduce heat loss and energy consumption
Specializing in magnetic core heat treatment processes, providing stable and reliable heat treatment equipment for amorphous, nanocrystalline, and other magnetic materials.
Application Areas
Magnetic cores are widely used in power, energy, electrical equipment, and power electronics to deliver efficient and reliable magnetic solutions for customers.

Power and Smart Grid
Provides high-performance magnetic cores and customized core solutions for power transmission, distribution, metering, and smart grid equipment.

New Energy and Power Electronics
Designed for new energy power generation, energy storage, and high-frequency power electronic equipment to meet demands for high efficiency, low loss, and high reliability.

Industrial and Electrical Equipment
Providing stable, reliable magnetic components and custom cores for industrial automation, motors, inductors, and electrical equipment.

EMC and Precision Electronics
Delivers reliable magnetic solutions for EMI suppression, precision measurement, and electronic equipment using cores with high permeability, low loss, and excellent stability.
Nanocrystalline core
Current Transformer · Precision Transformer · Smart Meter · Photovoltaic Inverter · High-Frequency Transformer · EMI Filter · Power Electronics
Amorphous Core
Distribution Transformers · Energy-Saving Transformers · Current Transformers · Power Equipment
CRGO Silicon Steel Core
Power Transformer · Distribution Transformer · Oil-Immersed Transformer · Dry-Type Transformer · Current Transformer · Motor Core
Need specialized applications? We offer custom cores based on your drawings, dimensions, and technical specifications.
Ready to get started?
Contact our expert team now for product quotes and technical support.