INDUSTRY COMPONENT

Magnet Core

Magnet core is a ferromagnetic component that concentrates and directs magnetic flux in bending magnets for particle beam control.

Component Specifications

Definition
A magnet core is the central ferromagnetic structure within a bending magnet that provides a low-reluctance path for magnetic flux, enabling precise control of charged particle trajectories in accelerators, synchrotrons, and beamlines. It consists of laminated silicon steel sheets or solid ferrite blocks shaped to create a uniform magnetic field across the gap where particles pass.
Working Principle
The magnet core operates on electromagnetic principles: when current flows through surrounding coils, it magnetizes the core material, creating a concentrated magnetic field. The core's geometry (typically C-shaped or window-frame) shapes this field to bend charged particles via the Lorentz force, with field strength proportional to current and core permeability.
Materials
Cold-rolled grain-oriented (CRGO) silicon steel (M-5, M-6 grades), non-oriented electrical steel, or soft ferrite (Mn-Zn, Ni-Zn) for high-frequency applications; laminated to reduce eddy current losses; insulated with phosphate or oxide coatings.
Technical Parameters
  • Cooling Air or water-cooled, depending on power
  • Core Loss <1.5 W/kg at 1.5 T, 50 Hz
  • Gap Length 10-100 mm (adjustable for field uniformity)
  • Permeability 1500-5000 μr
  • Operating Frequency DC to 10 kHz
  • Saturation Flux Density 1.8-2.0 T (silicon steel), 0.4-0.5 T (ferrite)
Standards
ISO 683-17, DIN EN 10107

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Magnet Core.

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Magnetic saturation leading to field distortion
  • Core overheating due to eddy currents
  • Mechanical stress from magnetic forces
  • Demagnetization over time
FMEA Triads
Trigger: Excessive current or high frequency operation
Failure: Core saturation and reduced magnetic field strength
Mitigation: Use higher-grade materials (e.g., M-6 steel), implement current limiting, and monitor temperature
Trigger: Poor lamination insulation or manufacturing defects
Failure: Increased eddy current losses and overheating
Mitigation: Quality control on coating uniformity, regular thermal inspections, and adequate cooling systems
Trigger: Mechanical vibration or misalignment
Failure: Core deformation and field non-uniformity
Mitigation: Secure mounting, vibration damping, and alignment checks during maintenance

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.1 mm on critical dimensions, ±2% on magnetic field uniformity
Test Method
Hall probe mapping for field uniformity, Epstein frame for core loss, and thermal imaging for hotspot detection

Buyer Feedback

★★★★☆ 4.9 / 5.0 (28 reviews)

"The technical documentation for this Magnet Core is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Magnet Core so far."

"Testing the Magnet Core now; the technical reliability results are within 1% of the laboratory datasheet."

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Frequently Asked Questions

What is the primary function of a magnet core in a bending magnet?

To concentrate magnetic flux and create a uniform field that bends charged particle beams via the Lorentz force, enabling precise trajectory control in accelerators.

Why are magnet cores laminated?

Lamination reduces eddy current losses by insulating layers, improving efficiency and preventing overheating in AC or pulsed applications.

How does material choice affect magnet core performance?

Silicon steel offers high saturation flux for strong fields, while ferrite provides low losses at high frequencies; selection depends on operating frequency and field strength requirements.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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