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Sierra Oil-Free 50-400 HP
Looking for a rugged and reliable oil-free air compressor? The SIERRA, Ingersoll-Rand’s oil-free rotary screw, is just the unit for you. With Ingersoll-Rand’s unmatched reputation for reliability and performance to count on, oil-free customers can enjoy the peace of mind so difficult to come by given their vital process and application needs.

Features
  • Advanced Compression Module Technology

    The two-stage compression module, with oil-free rotary screw technology, is the heart of the Sierra package. It makes the Sierra the toughest machine in the business. Stainless steel is used for critical sealing components, as well as for the high pressure rotor set. Combined with the use of the "ultracoating" process for the rotors and housing bores, this module design offers double protection against wear and the effects of corrosion.

  • Superior Rotor Coating Design

    Decades of oil-free rotary compressor experience have taught us how vital the rotor/housing coating is to initial and lasting compressor performance. As a result, "Ultracoat" was designed specifically for this oil-free compressor application, with its unmatched adhesion, durability, and temperature resistance properties the key selection criteria. But the real key for the customer is the optimum long term compressor performance, through minimized coating wear and efficiency degradation. In short, this means more compressed air for the operating cost dollar.

  • Ingersoll-Rand Packaging

    The Sierra’s packaging features were designed for optimum customer benefit. The 115 degree F ambient rating lessens the chance for nuisance shutdowns due to summer heat or dirty coolers. The package air flow materials of construction, stainless steel for cold-side piping, aluminum for the moisture separators, and the non-corrosive compression module components add to the compressor’s operating life and insure the delivery of clean compressed air.

  • Flexibility

    With Sierra, the choice is yours for an air or water-cooled package. Both have been designed for optimum performance. Also, wrapped around the many standard features are a variety of package options, available to meet special application needs. Outdoor modification, low ambient protection, and complete Nema 4 are just a few of the pre-engineered choices.



ModelDimensions inches (LxWxH)Weight lbs.Model L 100psig FAD (cfm)Model H 125 psig FAD (cfm)Nominal HPOutlet SizeModel HH 150 psig FAD (cfm)
Call for Pricing Sierra 50 88.5x54x75.4 5111 214 179 50 1.5" NPT -
Call for Pricing Sierra 60 88.5x54x75.4 5364 266 229 60 1.5" NPT -
Call for Pricing Sierra 75 88.5x54x75.4 5364 333 288 75 1.5" NPT 268
Call for Pricing Sierra 100 88.5x54x75.4 5500 419 407 100 1.5" NPT 378
Call for Pricing Sierra 125 106x62.5x93.3 6437 585 523 125 2" NPT 477
Call for Pricing Sierra 150 106x62.5x93.3 6452 690 690 150 2" NPT 565
Call for Pricing Sierra 200 106x62.5x93.3 7099 911 854 200 2" NPT 759
Call for Pricing Sierra 250 120x76x96 8820 1182 1070 250 4" ANSI Flange 905
Call for Pricing Sierra 300 120x76x96 9090 1398 1264 300 4" ANSI Flange 1112
Call for Pricing Sierra 350 120x76x96 9610 1600 1501 350 4" ANSI Flange 1330
Call for Pricing Sierra 400 120x76x96 9610 - - 400 4" ANSI Flange 1527
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