Rated to 100°C (212°F), “Medium” Heat Resistance
We offer Custom M (Medium) Series Neodymium Magnets.
They can reliably work at temperatures up to 100°C.
Standard magnets (N-Grade) typically start losing strength around 80°C.
Some applications run just a little bit too hot for standard magnets.
One example can be an LED light fixture or a battery housing.
Then you don’t need to overpay for industrial motor magnets.
The M-Series is the perfect bridge.
It handles the extra heat while keeping costs low.
Why Choose M Grade?
It is the smart choice for “warm” environments.
1. The “Safety Buffer” (80°C vs 100°C):
The Problem:
Standard magnets are rated for 80°C, but that is their limit.
If your device runs at 75°C, the magnet is on the edge of failure.
The Solution:
Switching to M-Grade gives you a safety limit of 100°C.
It ensures your magnet stays strong even if the device gets a little hotter than expected.
2. Save Money (Don’t Over-Engineer):
The Logic:
H-Grade (120°C) and SH-Grade (150°C) contain expensive heavy rare-earth elements (Dysprosium).
The Benefit:
M-Grade uses a simpler formula.
It is only slightly more expensive than standard magnets.
But still much cheaper than the high-temp industrial options.
3. High Power Options:
The Capability:
M-Grade doesn’t require as many additives as the very high-temp grades.
We can still make them extremely strong.
We can supply grades up to 50M or 52M, giving you N52-level power with 100°C protection.
Available Grades (M Series)
We can cut M-Series material into blocks, discs, rings, or custom shapes.
35M: The standard choice. Good strength, lowest cost.
40M / 42M: A popular upgrade for holding latches and sensors.
45M / 48M: High performance. Used when you need strong holding force in a small space.
50M: The strongest widely available M-Grade. Maximum power density.
Coating Options
Since these magnets are often used in commercial products, appearance and durability matter.
Nickel (Ni-Cu-Ni): The standard shiny silver finish.
Zinc (Blue/White): Good for gluing and offers better corrosion protection than Nickel in some environments.
Black Epoxy: Recommended if the magnet is used outdoors or in humid conditions.
Ideal Applications
LED Lighting: Magnetic mounts for lights (LEDs generate heat that kills standard magnets).
Consumer Electronics: Magnets inside laptops or battery packs that get warm during charging.
Industrial Sensors: Equipment that runs slightly above room temperature.
Holding Latches: Latches on machinery enclosures.
Ordering Guide
To get a quote, please tell us:
1). Dimensions: Length x Width x Thickness (or Diameter x Thickness).
2). Grade: e.g., “N35M” (Standard) or “N48M” (High Power).
3). Coating: Nickel, Zinc, or Epoxy?
4). Application: “What is the maximum temperature this magnet will reach?” (We double-check to make sure 100°C is enough for you).
