Tender For supply, installation, foundation work, and commissioning of air cooled electrically driven fixed speed with inlet modulation, oil lubricated screw type air compressor with acoustic enclosure. capacity -500 cfm, 10 kg/cm2 in accordance with attached technical specifications and scope of work..tolerance of 10% (+/- 10 %) in motor rpm may be accepted. hence speed of the main motor should be 1500 (+/- 10 %) rpm. [ warranty period: 30 months after the date of delivery ]