Products with Real Added Value

No heavy rare-earth addition

HRE-Free Magnets

These high-performance magnets were developed to reduce the use of heavy rare earths such as Dy and Tb as far as possible. This lowers dependence on critical raw materials and sustainably strengthens supply-chain security, regardless of current export restrictions. The highest grade currently achievable is N48SH.

Reduced eddy-current losses

Laminated Magnets

A complete magnet is divided into multiple smaller, electrically insulated segments and bonded again with a specially selected adhesive. This lamination reduces eddy currents caused by motor harmonics and skin effects. Heat loss and magnet temperature are lowered, reducing the risk of irreversible demagnetization and improving motor operating safety.

High surface flux density

Multipole Ring Magnets

MULTI-POLE RADIAL RING MAGNET

• Compared with segmented magnets: surface flux density is increased by more than 20 %, with magnetic pole-peak deviation within 3 %.
• Extremely high dimensional accuracy significantly reduces the deviation between the geometric center and the center of gravity.
• Improved temperature resistance.
• Suitable for high-speed operation with low vibration and low noise.
• Sinusoidal magnetic-field distribution at the surface – particularly beneficial for motor design.

Flexible pole count and skew angle

Radially Magnetized Ring Magnets

High-precision radially magnetized ring magnets for motors, sensors, and generators. Uniform field distribution and high energy density in a compact design.

Precision for sensors and instrumentation

Low Magnetic Deviation Angle

Process capability and complete final inspection

In sensors and precision instruments, the deviation between the geometric and magnetic axes directly affects measurement accuracy. Targeted optimization of pressing, sintering and machining processes enables magnets for applications with particularly tight magnetic-deviation-angle requirements.

• Requirements below ±3° can be achieved for typical sensor applications; the exact specification is defined according to the magnet shape and dimensions.
• Optimized pressing and machining processes improve process capability and reduce scrap in high-volume production.
• A fully automated measurement system checks the magnetic deviation angle after magnetization and enables documented 100% final inspection.
• Angle control becomes more demanding as magnet dimensions decrease, so achievable tolerances are confirmed for each project.

HAST-verified reliability

Hast Test

Ultra-Low Weight Loss NdFeB

Specially developed NdFeB materials with very low weight loss are available for applications requiring high corrosion resistance and long-term reliability. They are particularly suitable where uncoated magnet surfaces are beneficial for secure bonding or assembly.

• Weight loss below 1 mg/cm² under HAST conditions for 168 hours with a suitable product design.
• Reference specimens: 10 × 10 × 10 mm or Ø 10 × 10 mm.
• Low material loss supports corrosion resistance, reliability and service life.
• Suitable for permanent-magnet motors, elevators, radar, wind energy, aerospace and other demanding industrial applications.