Profile: Process Machinery, Inc. is a full service provider to the crushed stone, sand & gravel, asphalt producers, concrete, rubble & asphalt recycling industries and other minerals processing efforts. We also manufacture products like crusher, feeder, screens, hydraulic breakers, pugmills and many more. Our Nordberg NP Series impact crushers feature a unique combination of heavy rotor design, wear material and crushing chamber design. NP Series impact crushers are characterized by a unique hammer fixing system providing a higher degree of hammers reliability. NP Series impact crushers have been designed to minimize maintenance and improve all adjustment operations.