- 8th June 2026
In the motor industry, many still believe “High Performance = Rare Earth (NdFeB).” But facing volatile prices and supply chain risks, “Rare Earth-Free” solutions are already a commercial reality.
Here are 3 successful cases of Ferrite adoption that every engineer and purchaser should know:
1. The Cross-Industry Benchmark: Gree Kaibang
Back in 2010, they launched rare-earth-free synchronous reluctance motors, now used in over 100 million variable frequency air conditioners. More impressively, this tech has scaled to main drive motors for commercial EVs (40-200kW), achieving IE5 ultra-premium efficiency.
2. The “Hidden Champions” in HVAC Compressors
Giants like Panasonic Wanbao and Rechi have proven that for units under 1.5HP, Ferrite VFD compressors can fully meet Tier 1 energy efficiency standards. When rare earth costs spike, Ferrite is the ultimate stabilizer.
3. The Tech Roadmap from Japan
Proterial (formerly Hitachi Metals) has already prototyped EV motors using only Ferrite magnets that meet power requirements. This proves that with innovative magnet placement and circuit design, the performance boundaries of Ferrite are constantly being pushed.
💡 My Takeaway:
The core challenge is no longer “Can Ferrite work?” but “How do we optimize magnetic circuit topology (like SynRM designs) to maximize its cost-performance ratio?”
If you are exploring cost-down solutions or interested in Ferrite motor design, let’s connect!
#FerriteMagnet 话题标签RareEarthFree 话题标签ElectricMotor 话题标签CostReduction 话题标签SupplyChain 话题标签Engineering 话题标签HVAC 话题标签EV
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2) Size and shape, and magnet tolerances, normally International tolerance is +/-0.1mm
4) Magnetization direction
5) Quantities required.
6) Magnet application
