Home › Magnetocaloric Cooling Materials

Magnetocaloric Cooling Materials

Solid-state cooling without refrigerants, backed by non-Chinese materials supply.

Gd · La-Fe-Si · Ho/ErN52 NdFeB Field SourcesF-Gas Ready27.7% CAGR Market

Magnetocaloric refrigerators replace vapor-compression entirely: a magnetocaloric material warms when it goes into a magnetic field and cools when it comes out, and a permanent-magnet regenerator turns that cycle into useful cold. No compressor lubricant, no HFC refrigerant, no leak path. It is the only cooling technology that is simultaneously refrigerant-free and high-efficiency, which is why regulators and appliance majors are betting on it.

The market is small but compounding fast: roughly $0.72B in 2025, projected to reach about $2.45B by 2030 — a ~27.7% compound annual growth rate. The EU F-Gas regulation and the US AIM Act are the accelerants: both force steep cuts in hydrofluorocarbon quotas, and magnetocaloric is one of the few drop-in paths that needs no refrigerant at all.

The materials behind the effect

An allied, China-free bill of materials

Magnetocaloric materials lean on the same critical supply chain as everything else in cooling: rare earths. About 90% of rare-earth refining happens in China, and a regenerator built to commercial spec still needs gadolinium, lanthanum, iron, silicon and high-energy NdFeB. We source each stream from allied partners — non-Chinese magnet producers, and mines and refineries such as Lynas, Serra Verde, Rainbow REE, Torngat and Ucore — with documented chain of custody your sustainability and compliance teams can file.

Who builds with us

Magnetocaloric startups and scale-ups (the space includes Magnotherm, Cooltech Applications and Magnoric), appliance R&D groups, academic refrigeration labs and cooling system integrators. We supply R&D quantities through pilot line and into early production.

Pair these materials with compressor-grade magnets for the transition period: Refrigeration & HVAC Magnets ›

Magnetocaloric Cooling Materials — Free Sourcing Review

Tell us the working temperature band and regenerator configuration — we will quote magnetocaloric material and field-source magnets with chain-of-custody docs.

[email protected]

Frequently asked questions

How does magnetocaloric cooling work?

A magnetocaloric material heats when magnetized and cools when demagnetized; a permanent-magnet regenerator turns that temperature swing into continuous refrigeration — no refrigerant gas at all.

Which materials do you supply?

Gadolinium, La-Fe-Si alloys, holmium and erbium for sub-ambient cascades, plus N52 NdFeB field-source magnets and assemblies.

Is the supply chain China-free?

Yes. We source from non-Chinese magnet producers and allied mines and refineries, with documented chain of custody on request.

Do you support prototype quantities?

Yes — from R&D batches through pilot line and early production, with lot-level material data for your regenerator design.