GEF wheels are a representative product of our company. This product was developed by dramatically improving the polishing ability of abrasive wheels, which were previously used only for smoothing and/or light polishing. Our products made it possible to use a polishing wheel in a rough grinding process, which could previously only be achieved with a grinding wheel.
My father wrote in his memoirs that he came up with the idea one summer day when he was opening and closing a hand fan. The placement of paper between the ribs that radiate out increases the surface area and means that the upper half of this hand fan is stiff. He thought that if he could make a wheel like this fan, then it would be possible to make the outside of the wheel hard like a grinding wheel, even if it was made of abrasive cloth, so this would improve the polishing ability.
However, my father was not able to fully commercialize this idea by himself, and his idea was left neglected for ten years. Later on, when I began to help with the business as his eldest son, I was using CAD to adapt some of the old model drawings. By chance, I was able to create a model that commercialized my father's idea. That was in 1989.
On the prototype product we produced, the peripheral surface was just as hard as a grinding wheel. However, that was achieved with abrasive cloth as the material, so it fitted to the item to be polished better than a grinding wheel and the finish has no facets. The motion of the blades is that they stroke the surface to be polished, so the polishing performance is more than three times that of a general abrasive cloth wheel. Furthermore, there is no wasteful motion at the blade tips, so the lifespan of the product was also extended to more than three times that of a general abrasive cloth wheel. In addition, it is possible to adjust the hardness of the product in response to customer requirements, and it can be made (trimmed) to fit the shape of the item to be polished.
The high density of GEF wheels means that they tend to accumulate heat, so in principle they are only used for wet applications. However, we have recently developed an air-cooled type that has proven results in use in dry applications.
Abrasives are essential in the processing of metals. There is no product equivalent to our GEF wheels and they truly are products that are "One and Only in the world."