The world runs on magnets—literally. From electric motors to smartphones, MRI machines to satellites, magnetic materials are at the core of modern technology. Yet despite their ubiquity, many manufacturers still struggle with processing them efficiently.
In this article, we break down what magnetic materials are, where they’re used, and why cutting them right—especially with diamond wire saws—is more important than ever in today’s supply chain climate.
What Are Magnetic Materials?
Magnetic materials are substances that can generate or respond to magnetic fields. They’re generally categorized into four types:
- NdFeB (Neodymium Iron Boron) – The strongest known permanent magnet. Widely used in EV motors, wind turbines, medical devices, and robotics.
- SmCo (Samarium Cobalt) – High-temperature-resistant, corrosion-resistant. Used in aerospace, defense, and radar systems.
- Ferrite (Ceramic Magnets) – Cost-effective and stable. Common in speakers, sensors, microwave ovens.
- AlNiCo (Aluminum-Nickel-Cobalt) – Good temperature stability, used in meters, instruments, and magnetic separators.
Each of these magnetic materials has different mechanical properties and challenges during cutting or shaping.
Where Are Magnetic Materials Used?
You’ll find magnetic materials in nearly every sector:
- Automotive: Electric motors, sensors, fuel pumps
- Consumer Electronics: Speakers, phone vibration modules, hard drives
- Medical: MRI machines, surgical robotics, implant devices
- Energy: Wind turbine generators, maglev rails
- Defense: Missile guidance, navigation systems, stealth tech
As global demand grows, so does the need for localized, precise processing of these materials.
The Cutting Problem (and Why It Matters)
Despite their usefulness, magnetic materials are often:
- Hard and brittle
- Sensitive to heat
- Expensive to waste
Conventional cutting tools—like abrasive wheels, wire EDM, or band saws—often cause:
- Chipping and edge cracks
- Excessive dust or debris
- Uneven surfaces requiring more polishing
This directly affects final performance, yield, and production speed.
Diamond Wire Saw: The Smarter Way to Cut Magnetic Materials
Vimfun’s diamond wire saws solve this problem by using a high-precision endless diamond wire to slice through magnetic materials gently, cleanly, and efficiently.
Key advantages:
- Fast cutting speed with minimal pressure
- Smooth surface finish (often no secondary polishing needed)
- Very thin kerf (~0.35 mm) = higher material yield
- Wet cutting with filtered water = lower dust, safer workspaces
- Easy operation = faster learning curve for operators
Best of all, because the material is unmagnetized during cutting, there’s no interference with the wire motion.
