Fontijne Grotnes shrinkers compress parts into new dimensions and shapes. Shrinking is primarily used to size parts requiring outside diameter accuracy. The shrinking process is exactly opposite to the expanding process. ......Fontijne Grotnes shrinkers compress parts into new dimensions and shapes. Shrinking is primarily used to size parts requiring outside diameter accuracy. The shrinking process is exactly opposite to the expanding process. The part is positioned in the shrinker, its outer diameter facing the shrinker tooling. The dies are forced inward and press the metal part beyond its yield point and form it to the desired size and shapeApplications Fontijne Grotnes shrinkers are used in many forming and sizing applications, such as: Pipe couplings Jet engine parts Motor frames Conveyer pulleys Bearing races