N45SHSKU 2046 · Neodymium
Neodymium N45SH Magnet 0.25" x 0.11811"
- Size
- Diameter 0.25 in × Thickness 0.11811 in / Diameter 6.35 mm × Thickness 3 mm
- Max temp
- 300°F / 149°C
Rare earth magnet specialists since 2001
Magnets that holdwhen the heat doesn't quit
N45SH neodymium and Sm2Co17 samarium cobalt, stocked in 55 sizes and shipped the same day. Engineered for motors, couplings, sensors and separation equipment that run hot.
No pricing games — tell us the part and quantity and you get a written quote, usually the same business day.
550°F / 288°C
Max operating temp in stock
Same day
Shipping on stocked items
±0.002 in / 0.05 mm
Typical dimensional tolerance
24 hrs
Typical quote turnaround
Shop by shape
Four geometries, one spec sheet each
29 products
High Temp
Holds flux where the heat is
Samarium cobalt and SH/UH-grade neodymium built for continuous duty at elevated temperature — motors, generators, sensors and downhole assemblies that never cool down.
Shop High Temp12 products
Round & Disk
The workhorse geometry
Axially magnetized discs and cylinders in tight diameter tolerances — the default choice for couplings, holding fixtures, encoders and rotor packs.
Shop Round & Disk13 products
Rectangle & Block
Maximum flux per footprint
Blocks and bars that pack the most magnetic material into a flat mounting surface — linear motors, magnetic separation, latching and clamping.
Shop Rectangle & Block1 product
Sphere
Omnidirectional pull
Precision-ground neodymium spheres for lab work, prototyping, and rotating-field demonstrations where orientation must stay free.
Shop SphereSame-day shipping
Stocked orders placed before 2:00pm ET leave the same business day.
US stock, US support
Real inventory in our warehouse and application support from experienced engineers.
High-temp specialists
SH-grade neodymium and Sm2Co17 held in depth, not special-ordered.
Quote in one business day
Written pricing with lead time and freight, no account required.
Best sellers
High temperature magnets
SH-grade neodymium holds coercivity to 300°F / 149°C; samarium cobalt keeps going to 550°F / 288°C without plating. Both are stocked, not special-ordered.
N45SH
N45SHSKU 2032A · Neodymium
Neodymium N45SH Magnet 0.375" x 0.25" x 0.25"
- Size
- 0.375 in × 0.25 in × 0.25 in / 9.52 mm × 6.35 mm × 6.35 mm
- Max temp
- 300°F / 149°C
N45SHSKU 2036 · Neodymium
Neodymium N45SH Magnet 0.375" x 0.375" x 0.375"
- Size
- 0.375 in × 0.375 in × 0.375 in / 9.52 mm × 9.52 mm × 9.52 mm
- Max temp
- 300°F / 149°C
N45SHSKU 2064 · Neodymium
Neodymium N45SH Magnet 0.5" x 0.25"
- Size
- Diameter 0.5 in × Thickness 0.25 in / Diameter 12.7 mm × Thickness 6.35 mm
- Max temp
- 300°F / 149°C
Engineered for the application
Tell us the job, not just the size
High-performance motors & generators
Rotor and stator assemblies that run hot need coercivity, not just remanence. SH-grade neodymium and Sm2Co17 hold flux through thermal cycling.
N45SH · N42SH · Sm2Co17
Sensors, encoders & position feedback
Tight dimensional tolerance and consistent magnetization angle keep Hall-effect and magnetoresistive signals repeatable across a production run.
N42 · N45 · Sm2Co17
Magnetic couplings & bearings
Sealed, contact-free torque transfer through a barrier wall. Disc and block stacks sized for the gap and the torque curve you actually need.
Sm2Co17 · N45SH · N52
Holding, latching & fixturing
Blocks and discs for weld fixtures, tooling plates, jigs and access panels — where repeatable pull force beats maximum pull force.
N42 · N45 · Ceramic Grade 8
Magnetic separation & filtration
Tramp metal capture in bulk material flows. High-temp grades survive dryers, extruders and bake-out cycles that destroy standard neodymium.
Sm2Co17 · N45SH · Ceramic Grade 8
RF, microwave & scientific instruments
Samarium cobalt's low reversible temperature coefficient keeps field strength stable inside travelling-wave tubes, circulators and beam optics.
Sm2Co17
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