{"id":11152,"date":"2026-09-09T14:53:38","date_gmt":"2026-09-09T10:53:38","guid":{"rendered":"https:\/\/iesco.ge\/product\/ingersoll-rand-oil-free-screw-compressors\/"},"modified":"2026-09-12T19:01:15","modified_gmt":"2026-09-12T15:01:15","slug":"ingersoll-rand-oil-free-screw-compressors","status":"publish","type":"product","link":"https:\/\/iesco.ge\/en\/product\/ingersoll-rand-oil-free-screw-compressors\/","title":{"rendered":"Ingersoll Rand Oil-Free Screw Compressors"},"content":{"rendered":"

Ingersoll Rand oil-free screw compressors<\/strong> deliver ISO 8573-1 Class 0 air from 15 to 355 kW; IESCO is their authorised partner in Georgia.<\/p>\n

Ingersoll Rand<\/strong> is one of the world’s oldest manufacturers of oil-free compressors, with almost 150 years of history. IESCO is an authorised Ingersoll Rand partner in Georgia: we select, install and service the complete oil-free screw range, from 15 to 355 kW.<\/p>\n

What Class 0 means<\/h2>\n

ISO 8573-1 grades the oil content of compressed air into classes. Class 1 means 0.01 mg\/m\u00b3; Class 0 is stricter still: there is practically no oil in the air, because no oil enters the compressor at all. Ingersoll Rand oil-free compressors are certified Class 0 by T\u00dcV.<\/p>\n

This is the difference between oil-free air and filtered air. On an oil-injected compressor a filter can saturate or be changed late. On an oil-free compressor the risk is eliminated by design. That is why food, pharmaceutical, electronics and medical production have no other option.<\/p>\n

Ingersoll Rand oil-free screw compressors: series and range<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Series<\/th>\nPower<\/th>\nFlow<\/th>\nPressure<\/th>\nTechnology<\/th>\n<\/tr>\n<\/thead>\n
E15-37H<\/strong><\/td>\n15\u201337 kW<\/td>\n1.8\u20136.2 m\u00b3\/min<\/td>\n5\u201310 bar<\/td>\nSingle stage, water injected; fixed and variable speed<\/td>\n<\/tr>\n
Sierra 37-75<\/strong><\/td>\n37\u201375 kW<\/td>\n5.1\u201312.7 m\u00b3\/min<\/td>\n4.5\u201310 bar<\/td>\nTwo stage, dry screw; fixed speed<\/td>\n<\/tr>\n
Nirvana 37-75<\/strong><\/td>\n37\u201375 kW<\/td>\n2.6\u201312.3 m\u00b3\/min<\/td>\n4.5\u201310 bar<\/td>\nTwo stage, dry screw; variable speed (VSD)<\/td>\n<\/tr>\n
ES55-110ne<\/strong><\/td>\n55 and 110 kW<\/td>\n4.3\u201319.6 m\u00b3\/min<\/td>\n5\u201310 bar<\/td>\nDual drive, permanent magnet motors above IE5; oil and silicone free<\/td>\n<\/tr>\n
E75-160ne<\/strong><\/td>\n75\u2013160 kW<\/td>\n6.7\u201324.0 m\u00b3\/min<\/td>\n4\u201310 bar<\/td>\nDual drive, two stage, dry screw; VSD<\/td>\n<\/tr>\n
E90-160<\/strong><\/td>\n90\u2013160 kW<\/td>\nup to 28.3 m\u00b3\/min<\/td>\n4\u201310.7 bar<\/td>\nTwo stage, dry screw; fixed (IE4) and variable (IE5) speed<\/td>\n<\/tr>\n
E200-355<\/strong><\/td>\n200\u2013355 kW<\/td>\nup to 52.9 m\u00b3\/min<\/td>\n4\u201310.7 bar<\/td>\nTwo stage, dry screw; fixed and variable speed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Every series is available air cooled or water cooled. Flow is stated to ISO 1217 at 7 bar.<\/p>\n

Two technologies in one range<\/h2>\n

Water injected, single stage (E15-37H).<\/strong> Water instead of oil fills the gap between the rotors, cools them and seals the compression chamber. The result is oil-free air from a simple, compact machine, for small and medium plants.<\/p>\n

Dry, two stage (Sierra, Nirvana, E and ES series).<\/strong> The rotors never touch, and there is neither oil nor water in the chamber. Air is compressed in two stages with intercooling between them. This is the industrial standard for high flow and 24\/7 duty.<\/p>\n

Energy: where the savings come from<\/h2>\n

Electricity is roughly 70 percent of a compressor’s lifetime cost. Ingersoll Rand attacks it in three ways:<\/p>\n