RQI, Inc. manufactures rotors and rotor parts for use in a specific style of rock crushing machine called an Impact Crusher, or an Impactor. Impactors use high speed collisions between the rock and both moving and stationary bars inside the machine, as well as rock on rock collisions. These collisions cause the rock to shatter into smaller pieces, ultimately passing through the machine once the desired size reduction is achieved. Impactors give excellent production rates, reduction ratios, and cubical product. The moving bars inside the machine are mounted in a rotating drum. This rotating drum is called a Rotor.