The document describes an air knife/wipe/curtain system that can be made in India. It has one to eight input/output channels that can be selected and controlled. It uses compressed air at 2 to 6 bars, which is only 15% of normal nozzle consumption. The output is a diverged jet that can be straight or curved to magnify the air flow by 40-300%. It can be used to skim, dry, cool, clean and separate a variety of lightweight materials like oil, chemicals, water, glue, solutions, dust, and more in various industries.