Magnets 101 — The Complete Guide to Magnetics
The beginner-to-engineer introduction: domains, poles, and flux; material families; grade decoding; BH curves; magnetization directions; temperature; coatings; and applications by industry.
Start Here foundations — 3
Magnets 201 — Advanced Magnetics Engineering
The full mathematical treatment: load-line analysis, permeance coefficients, circuit modeling, demagnetization physics, and design calculations for working engineers.
Magnet Terminology Glossary
Every term you'll meet on a datasheet or drawing — Br, Hc, (BH)max, coercivity, permeance, and more — with live search and plain-language definitions.
Interactive Tools hands-on — 3
Search Our Inventory
Dimension-aware search across 10,000,000+ stock magnets — type sizes in inches or millimeters, fractions or decimals, with grades, shapes, and coatings understood natively.
Magnet Configurator
Design a magnet interactively: choose shape, dimensions, grade, and coating, and get performance estimates as you go.
first time? read the how-to guide
Maggie — AI Magnet Search Companion
Describe your application in plain English and Maggie searches live inventory, calculates pull force, and routes RFQs straight to our team.
Buying & Sourcing procurement — 4
How to Prepare a Magnet RFQ
The specification checklist that gets accurate quotes back fast — dimensions, grade, coating, magnetization, tolerances, and the details suppliers actually need.
Magnet Pricing Explained
What actually drives magnet cost — material content, tooling, tolerances, coating, order volume — and where a spec change saves real money.
Shipping Magnets by Air
UN 2807 classification, IATA field-strength limits, shielding and packaging methods, and how to keep magnet shipments unrestricted.
Magnet Compliance Guide
RoHS, REACH, conflict minerals (CMRT/EMRT), Prop 65, and IMDS — what applies to NdFeB magnets and which documents to request from your supplier.
Engineering Reference specification — 10
Neodymium Magnet Grades Chart
The N35–N55 property table, temperature-class suffixes decoded, and the grade/class availability matrix — including why "N52SH" doesn't exist.
Magnet Material Comparison
NdFeB vs. SmCo vs. alnico vs. ferrite — strength, temperature, corrosion, and cost, side by side, with guidance on when each one wins.
Magnetization Directions Explained
Axial, diametric, radial, and multipole — how orientation is set during manufacturing and how to choose the right direction for your application.
Magnetization Patterns & Drawing Callouts
Multipole patterns, the anisotropy constraint, and the five drawing callouts that remove spec ambiguity before it reaches the RFQ stage.
Pull Force Explained
Air-gap derating, thin-steel saturation, shear vs. normal loads — and a worked example showing how a 20 lb rating becomes a 1.2 lb design load.
Electromagnets vs. Permanent Magnets
Field control versus zero power: the real trade-offs, where each technology wins, and the electro-permanent hybrids in between.
How Neodymium Magnets Are Made
Strip casting through inspection — and how each process step explains the lead times, MOQs, and tolerances you see when buying.
Neodymium Magnet Coatings Guide
NiCuNi, zinc, epoxy, parylene, and more — corrosion protection, thickness, adhesion behavior, and how to pick the right finish for the environment.
Magnets & Temperature
Reversible vs. irreversible losses, maximum operating temperatures by grade class, and how to design for hot (and cryogenic) environments.
Magnets for Sensors
Hall, TMR/AMR, and reed sensor magnet selection: the five sensing configurations, field-at-gap design, and encoder ring specification.
Design & Assembly integration — 4
Bonding & Mounting Magnets
Adhesive selection, surface prep by coating type, bond joint design, and mechanical retention — so your magnet stays put for the product's life.
Magnet Fastening & Adhesives
Adhesive families compared, Ni-plating surface prep, shear-vs-peel joint design, and the pre-production checklist before you commit to a bond.
Magnetic Assemblies Guide
Pot, channel, countersunk, and rubber-coated formats — how steel cups multiply pull force 2–4×, and which assembly fits which job.
Halbach Arrays Explained
One-sided flux, dipole cylinders, and rotor rings — how the rotating magnetization pattern works and what it takes to actually build one.
Quality & Safety verification — 4
How Magnets Are Tested & Measured
Hysteresisgraph, Helmholtz coil, gaussmeter, pull tests, and pole scanning — what each instrument proves, and how to write acceptance criteria that hold up.
Magnet Handling & Safety
Handling rules by magnet size, pacemaker precautions, safe separation technique, storage, and a complete workplace safety-program checklist.
Why Magnets Lose Strength
The demagnetization mechanisms — heat, opposing fields, corrosion, shock — with the physics of the BH-curve knee and how to design margin against each one.
Magnet Failure Analysis
The four failure families with a symptom → cause → verification diagnostic table — for when a magnet in the field has already lost performance.
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