J. Lanfranco self-locking nuts are used in cement plants, on mills (SAG & Ball Mill) and for engines. Diameters bigger than M20 are chosen for their resistance to vibration and impact.
One of the biggest challenges for cement plant maintenance personnel is to solve the failures related to screwed assemblies, due to loosening when vibration, extreme temperatures, nuts with cracks, loss of tension in the screw.
Diameters M30-33-36 fine pitch are mostly used in cement plants. ESL Lanfranco ESL nuts for Mill like “Ball Mill” have eliminated the failures of nylon insert nuts, nut-against-nut method, cracked nuts, and welded nuts