NPK markets both secondary concrete crushers and material processors. The G-Series secondary crushers handle secondary demolition and recycling of concrete and are available for excavators with operating weights from 6.6 to 50 tons. The three material-processor models are designed to handle primary demolition of concrete, steel and rebar. Four interchangeable jaw assemblies are available: S for primary breaking; G for pulverizing; K for shearing; and C for a range of uses. NPK processors work with excavators in the 20- to 55-ton range.
