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Technical Resource Library

//Technical Resource Library

Fifteen engineering and procurement guides written by our team — from preparing your first custom-magnet RFQ to Halbach array design. No signup, no gate.

Buying & Sourcing

How to Prepare an RFQ for Custom Magnets

Everything a complete magnet spec needs — dimensions, grade, direction, coating, quantities, quality docs — with a copy-paste checklist. Faster quotes, firmer pricing.

Magnet Pricing Explained

What actually drives NdFeB cost: rare earth markets, grade premiums, machining, tooling, MOQs, and volume breaks — plus seven ways to lower your magnet spend.

Shipping Magnets by Air: IATA Rules

When magnets become UN 2807 regulated cargo, the field-strength thresholds, and the packaging techniques that keep most shipments unrestricted.

RoHS, REACH & Conflict Minerals

The compliance paperwork behind magnet sourcing — what each regulation asks, where magnets have real exposure, and the exact documents to require from suppliers.

Engineering Reference

Neodymium Magnet Grades Chart

N35 through N55 with full properties, every temperature class, and the availability matrix showing which grade/class combinations actually exist.

NdFeB vs. SmCo vs. Ferrite vs. Alnico

The four magnet families compared on strength, temperature, corrosion, and cost — with selection tables by operating temperature and application.

Magnetization Directions & Pole Configurations

Axial, diametric, true radial, and multipole — how each works, how to call it out on a drawing, and why the direction can never be changed after manufacture.

Pull Force & Holding Force Explained

Why a 20 lb-rated magnet can fail to hold 5 lb: air-gap derating, thin-steel saturation, shear loading, and how to design with real safety factors.

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, jet milling, aligned pressing, sintering, grinding, coating, and magnetizing — and how each step explains lead times, MOQs, and tolerances.

Design & Assembly

Bonding & Mounting Magnets

Adhesive selection, surface prep by coating type, bond joint design, and mechanical retention — so your magnet stays put at temperature for the product's life.

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

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 Guide

Handling rules by magnet size, pacemaker precautions, safe separation technique, storage, and a complete workplace safety-program checklist.

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