KAM snap presses are made of solid cast iron and are industrial grade. That means they should last decades at least when used and cared for properly.
Occasionally though, your press may have an accident and crack at the base. This could happen if the press has been dropped or isn't placed on a completely flat and smooth surface, which would cause uneven distribution of pressure.
But even a broken base can be worked with.
Photo courtesy of Melody G
Photo courtesy of April G
Photo courtesy of Carolyn K