Distributor of Compressed Air Products - Rockland, Massachusetts - Energy Machinery, Inc. Air Compressors, Compressed Air Products, Rockland, Massachusetts, Energy Machinery, Inc. Energy Machinery is a distributor of specialized compressed air equipment including oil lubricated and oil-free air comppressors, centrifugal air compressors, air dryers, compressed air filters, blowers, air receivers, closed loop coolers, and other compressed air accessories.