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History


Powder metallurgical processes are applied to manufacture the magnets.
The critical steps of the processes regarding quality and efficiency of the magnets are bowdlerizing the starting alloys, and the following compaction step. Since beginning of 1920s, world-wide scientist and engineers had innovated and learned to produce the magnets at consistent level. However, over the past 40 years since 1980s, the western world hailed the development and production of magnets. Instead, China has obtained the leadership with close to 80% market shares, due to the rich availability of Rare Earth minerals.

The founder of NKE has been engaged in the RE magnet technology from the beginning in 1970 in Research, Engineering and Manufacturing. In 1990 the German Nagel & Kroenert Engineering Company was founded. The focus of the company has always been on the development of powder preparation, storage and transportation technologies, and on the design of fully automatic powder compaction plants.

During the past 30 years when the rest of the world dropped out of the magnet industry, the activities of NKE were shifted in 2006 to China, in order to be close to the rapidly growing Chinese Rare Earth activities.

From 2021, the German activities have been reanimated and are now part of IBN Dr. Nagel Consultancy and Engineering.

Products with our unique NKE technology

RE Press technology General:

      CIP, Uniaxial, Hot deforming
       various technologies

NKE Technology:
       Automatic Line Powder-Press-loading/transport-Sinter



Over the past 30 years, in demands of our world's magnets, 80% relies on China.  It has developed well production equipment except the pressing process which has been the bottle neck technology.
However, thanks to their low-cost labor cost and slowly environmental regulations, they can manage by using the two steps pressing methods, which is that they use the dry simple press to make the shape for the first step then go into cold isostatic press to reach the density which is the second step. 4 operator staff must be involved to be able to finish the two steps pressing. Huge amount of cold isostatic oil and plastic bags consuming.

Magnetic powder has high orientation so to align in even direction at the same time to compact the powder into good shape with the high density is a challenging technology.
NKE press can make one step pressing to the perfect shape and accurate density. This is as well the key part to accomplish full automation in the whole production line.

The sophisticate magnetic system with precise exquisite mechanic design is our unique technology. Ferriot element calculation ensure the perfect mechanic supports. It was developed based on 50 years practical experience and high academic scientific theory.


Magnetic presses

The key for modern fully automatic production line

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