Large-Diameter D300 Halbach Magnetic Assembly for Micro-MRI Systems

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Description

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Large-Diameter D300 Halbach Magnetic Assembly for Micro-MRI Systems

This ø300 mm permanent magnetic system delivers a stable and high-field output of 8930Gs, enabling reliable and uniform magnetic performance for compact MRI imaging platforms and advance scientific research applications.

Overview

uOuter Diameter: Ø300 mm

uHeight: 95 mm

uCentral Surface Magnetic Field: 8930 Gauss

uHigh field uniformity across working area

uStable magnetic output for long-term operation

Applications / 应用

The system is based on a multi-pole Halbach-style magnetic configuration, designed to enhance magnetic flux density on

working surface while minimizing magnetic leakage on the opposite side. This magnetic assembly is widely used in:

uDesktop Micro-MRI systems

uPortable MRI devices

uLow-field MRI research platforms

uCompact scientific magnetic systems

MANUFACTURING & ASSEMBLY CHALLENGES / 制造与装配能力

Due to the large diameter structure and complex multi-directional magnetization design, this project presents significant manufacturing and assembly challenges.

The key difficulty lies in:

uPrecision control of large arc magnets

FAIZEAL used a splicing method to solve the difficulty of processing large magnetization direction magnets.

uMagnetic interference during assembly

With over a decade of industry assembly experience, FAIZEAL designs and manufacturers customized assembly fixtures that enable workers to perform magnetic assembly safely and efficiently.

uAssemble magnets under strong magnetic forces

By using specialized assembly fixtures, the assembly workers with experiences to fit the powerful magnets into the shell. This not only needs more courage, but also meticulousness and a strong knowledge base.

To ensure reliability, dedicated assembly fixtures and controlled magnetic assembly procedures are developed, enabling safe and repeatable production under high magnetic field conditions.

Engineering Capability / 工程能力

Halbach's capabilities include:

uMagnetic circuit design;

uStrong capacity for manufacturing large-sized magnetic components; e

uExpertise in magnetic assembly engineering;

uThe ability to develop customized magnetic systems.

Conclusion / 结论

In this customized project, the entire process—from early-stage technical evaluation and quotation, to the structural design of assembly fixtures and magnetic material manufacturing planning, and finally to the magnetized precision assembly and system-level validation—systematically demonstrates FAIZEAL Magnetics’ comprehensive engineering capability in magnetic circuit design, complex magnet system implementation, and high-difficulty magnetic assembly processes.

In particular, during the engineering realization of the large-diameter magnetic structure, optimized magnetic circuit design combined with appropriate manufacturing process selection effectively addressed key challenges such as large magnet fabrication difficulties, complex magnetization orientation control, and structural consistency management.

During the final magnetized assembly stage, dedicated tooling fixtures and proven assembly expertise enabled controlled and repeatable assembly under strong magnetic interference conditions, ensuring both product performance and structural stability.

The successful delivery of this project not only validates our engineering capability in high-performance magnetic assemblies, but also demonstrates our full-process expertise—from magnetic design and manufacturing to precision assembly integration.

This project is not only a product delivery, but also a complete validation of our capability in complex magnetic system engineering.