WHAT SIZE ROCK CAN IT HANDLE?
This depends on what the rock is. The harder the rock, the better it is if it is smaller than larger. Even two pieces of the same host rock can crush differently, depending on existing cracks, inclusions or impurities. Things like marble and caliche` can crush very easily, where quartz with little impurities or inclusions will crush harder. As a general rule of thumb, rocks crushed should be the size of, or less than the size of a standard ice cube. It’s easier to crush just a couple at a time with the jaws ½ way open, and then re run the material a 2nd or 3rd time, until the desired size is achieved.
