Specify by the job it has to do

Applications

A magnet spec that ignores the circuit is a guess. These are the applications we support most often, with the grades that survive them.

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.

Design driver
Continuous duty above 250°F with minimal irreversible loss
Grades we recommend
N45SHN42SHSm2Co17
Industries
Automotive · Industrial Automation · Energy Production

Sensors, encoders & position feedback

Tight dimensional tolerance and consistent magnetization angle keep Hall-effect and magnetoresistive signals repeatable across a production run.

Design driver
Predictable field geometry and lot-to-lot consistency
Grades we recommend
N42N45Sm2Co17
Industries
Industrial Automation · Medical Equipment · Robotics

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.

Design driver
Torque density across a fixed air gap
Grades we recommend
Sm2Co17N45SHN52
Industries
Pumps & Fluid Handling · Chemical Processing · Marine

Holding, latching & fixturing

Blocks and discs for weld fixtures, tooling plates, jigs and access panels — where repeatable pull force beats maximum pull force.

Design driver
Repeatable clamp force and easy release
Grades we recommend
N42N45Ceramic Grade 8
Industries
Manufacturing · Fabrication · Tooling

Magnetic separation & filtration

Tramp metal capture in bulk material flows. High-temp grades survive dryers, extruders and bake-out cycles that destroy standard neodymium.

Design driver
Sustained gauss at process temperature
Grades we recommend
Sm2Co17N45SHCeramic Grade 8
Industries
Food Processing · Plastics · Recycling

RF, microwave & scientific instruments

Samarium cobalt's low reversible temperature coefficient keeps field strength stable inside travelling-wave tubes, circulators and beam optics.

Design driver
Field stability over temperature and time
Grades we recommend
Sm2Co17
Industries
Telecom · Industrial Instrumentation · Scientific Research

Science, education & laboratory projects

Stocked discs, blocks and spheres support classroom demonstrations, university experiments, makerspaces and laboratory prototypes. We can help match the grade and geometry to the field, temperature and handling requirements.

Design driver
Repeatable field strength with a size appropriate for supervised handling
Grades we recommend
N42N45SHCeramic Grade 8
Industries
Education · Universities · Research Laboratories

Something more unusual?

We tool multi-pole rings, arc segments, keepered assemblies and bonded shapes. Describe the circuit and we will engineer to it — or call 574-633-0061.