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Unmatched Service & Support

Rogers Machinery cares. We go above and beyond – every time – to keep your facility running smoothly and on schedule.

 Let us treat you like family.
High Performance Products that Stand the Test of Time

Our robust, American-made air compressors and vacuum pumps lead the industry in longevity and durability. You’ll be impressed with our large selection of efficient and reliable compressed air system products. We guarantee it!

 Find out why our premium-quality systems are the most dependable on the market.
The Right Solution for Your Application… No Matter What

No cookie-cutter systems here. We have a large selection of products and the flexibility to create highly customized systems. Rogers Machinery serves a wide variety of industries and facilities – including ones like yours.

 Let’s talk. We’d love to discuss what we can do for your facility.
Regional Accessibility with National Reach

We call the Pacific Northwest home, but we serve many domestic and international customers. Our reputation precedes us wherever we go, and we meet our customers wherever they are.

 Learn more about our Pacific Northwest compressors and our locations nationwide.
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We are now offering free shipping on all Assembly Orders shipped to Georgia.

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Rogers started as a locally grown, family-owned business, building air compressor solutions right here in the USA, and has been for over 70 years.

 We are proud to be a locally grown and American made company.
    Home / Products / Rogers - KNW Series Oil-Free Rotary Screw Air Compressor
    Rogers KNW Series Oil-Free Rotary Screw Air Compressor 0-24HP, 0-99PSIG, 100-124PSIG, 100-199HP, 100-199SCFM, 1100+SCFM, 125-149PSIG, 150-199PSIG, 200-299PSIG, 200-499HP, 200-499SCFM, 25-49HP, 50-99HP, 50-99SCFM, 500+HP, 500-799SCFM, 800-1099SCFM, a/c, air compressor, fixed, ind_aerospace, ind_automotive, ind_electronics, ind_food&bev, ind_glass&plastics, ind_manufacturing, ind_medical, ind_municipalities, ind_package, ind_petrochem, ind_power-gen, ind_water-treatment, ind_wood-products, knw-series, oil-fr
    Rogers KNW Series Oil-Free Rotary Screw Air Compressor 0-24HP, 0-99PSIG, 100-124PSIG, 100-199HP, 100-199SCFM, 1100+SCFM, 125-149PSIG, 150-199PSIG, 200-299PSIG, 200-499HP, 200-499SCFM, 25-49HP, 50-99HP, 50-99SCFM, 500+HP, 500-799SCFM, 800-1099SCFM, a/c, air compressor, fixed, ind_aerospace, ind_automotive, ind_electronics, ind_food&bev, ind_glass&plastics, ind_manufacturing, ind_medical, ind_municipalities, ind_package, ind_petrochem, ind_power-gen, ind_water-treatment, ind_wood-products, knw-series, oil-fr
    Rogers KNW Series Oil-Free Rotary Screw Air Compressor 0-24HP, 0-99PSIG, 100-124PSIG, 100-199HP, 100-199SCFM, 1100+SCFM, 125-149PSIG, 150-199PSIG, 200-299PSIG, 200-499HP, 200-499SCFM, 25-49HP, 50-99HP, 50-99SCFM, 500+HP, 500-799SCFM, 800-1099SCFM, a/c, air compressor, fixed, ind_aerospace, ind_automotive, ind_electronics, ind_food&bev, ind_glass&plastics, ind_manufacturing, ind_medical, ind_municipalities, ind_package, ind_petrochem, ind_power-gen, ind_water-treatment, ind_wood-products, knw-series, oil-fr
    Rogers KNW Series Oil-Free Rotary Screw Air Compressor 0-24HP, 0-99PSIG, 100-124PSIG, 100-199HP, 100-199SCFM, 1100+SCFM, 125-149PSIG, 150-199PSIG, 200-299PSIG, 200-499HP, 200-499SCFM, 25-49HP, 50-99HP, 50-99SCFM, 500+HP, 500-799SCFM, 800-1099SCFM, a/c, air compressor, fixed, ind_aerospace, ind_automotive, ind_electronics, ind_food&bev, ind_glass&plastics, ind_manufacturing, ind_medical, ind_municipalities, ind_package, ind_petrochem, ind_power-gen, ind_water-treatment, ind_wood-products, knw-series, oil-fr
    Rogers KNW Series Oil-Free Rotary Screw Air Compressor 0-24HP, 0-99PSIG, 100-124PSIG, 100-199HP, 100-199SCFM, 1100+SCFM, 125-149PSIG, 150-199PSIG, 200-299PSIG, 200-499HP, 200-499SCFM, 25-49HP, 50-99HP, 50-99SCFM, 500+HP, 500-799SCFM, 800-1099SCFM, a/c, air compressor, fixed, ind_aerospace, ind_automotive, ind_electronics, ind_food&bev, ind_glass&plastics, ind_manufacturing, ind_medical, ind_municipalities, ind_package, ind_petrochem, ind_power-gen, ind_water-treatment, ind_wood-products, knw-series, oil-fr
    Rogers KNW Series Oil-Free Rotary Screw Air Compressor 0-24HP, 0-99PSIG, 100-124PSIG, 100-199HP, 100-199SCFM, 1100+SCFM, 125-149PSIG, 150-199PSIG, 200-299PSIG, 200-499HP, 200-499SCFM, 25-49HP, 50-99HP, 50-99SCFM, 500+HP, 500-799SCFM, 800-1099SCFM, a/c, air compressor, fixed, ind_aerospace, ind_automotive, ind_electronics, ind_food&bev, ind_glass&plastics, ind_manufacturing, ind_medical, ind_municipalities, ind_package, ind_petrochem, ind_power-gen, ind_water-treatment, ind_wood-products, knw-series, oil-fr
    Rogers KNW Series Oil-Free Rotary Screw Air Compressor 0-24HP, 0-99PSIG, 100-124PSIG, 100-199HP, 100-199SCFM, 1100+SCFM, 125-149PSIG, 150-199PSIG, 200-299PSIG, 200-499HP, 200-499SCFM, 25-49HP, 50-99HP, 50-99SCFM, 500+HP, 500-799SCFM, 800-1099SCFM, a/c, air compressor, fixed, ind_aerospace, ind_automotive, ind_electronics, ind_food&bev, ind_glass&plastics, ind_manufacturing, ind_medical, ind_municipalities, ind_package, ind_petrochem, ind_power-gen, ind_water-treatment, ind_wood-products, knw-series, oil-fr
    Rogers KNW Series Oil-Free Rotary Screw Air Compressor 0-24HP, 0-99PSIG, 100-124PSIG, 100-199HP, 100-199SCFM, 1100+SCFM, 125-149PSIG, 150-199PSIG, 200-299PSIG, 200-499HP, 200-499SCFM, 25-49HP, 50-99HP, 50-99SCFM, 500+HP, 500-799SCFM, 800-1099SCFM, a/c, air compressor, fixed, ind_aerospace, ind_automotive, ind_electronics, ind_food&bev, ind_glass&plastics, ind_manufacturing, ind_medical, ind_municipalities, ind_package, ind_petrochem, ind_power-gen, ind_water-treatment, ind_wood-products, knw-series, oil-fr
    Rogers KNW Series Oil-Free Rotary Screw Air Compressor 0-24HP, 0-99PSIG, 100-124PSIG, 100-199HP, 100-199SCFM, 1100+SCFM, 125-149PSIG, 150-199PSIG, 200-299PSIG, 200-499HP, 200-499SCFM, 25-49HP, 50-99HP, 50-99SCFM, 500+HP, 500-799SCFM, 800-1099SCFM, a/c, air compressor, fixed, ind_aerospace, ind_automotive, ind_electronics, ind_food&bev, ind_glass&plastics, ind_manufacturing, ind_medical, ind_municipalities, ind_package, ind_petrochem, ind_power-gen, ind_water-treatment, ind_wood-products, knw-series, oil-fr
    Rogers KNW Series Oil-Free Rotary Screw Air Compressor 0-24HP, 0-99PSIG, 100-124PSIG, 100-199HP, 100-199SCFM, 1100+SCFM, 125-149PSIG, 150-199PSIG, 200-299PSIG, 200-499HP, 200-499SCFM, 25-49HP, 50-99HP, 50-99SCFM, 500+HP, 500-799SCFM, 800-1099SCFM, a/c, air compressor, fixed, ind_aerospace, ind_automotive, ind_electronics, ind_food&bev, ind_glass&plastics, ind_manufacturing, ind_medical, ind_municipalities, ind_package, ind_petrochem, ind_power-gen, ind_water-treatment, ind_wood-products, knw-series, oil-fr
    Rogers KNW Series Oil-Free Rotary Screw Air Compressor 0-24HP, 0-99PSIG, 100-124PSIG, 100-199HP, 100-199SCFM, 1100+SCFM, 125-149PSIG, 150-199PSIG, 200-299PSIG, 200-499HP, 200-499SCFM, 25-49HP, 50-99HP, 50-99SCFM, 500+HP, 500-799SCFM, 800-1099SCFM, a/c, air compressor, fixed, ind_aerospace, ind_automotive, ind_electronics, ind_food&bev, ind_glass&plastics, ind_manufacturing, ind_medical, ind_municipalities, ind_package, ind_petrochem, ind_power-gen, ind_water-treatment, ind_wood-products, knw-series, oil-fr
    Rogers KNW Series Oil-Free Rotary Screw Air Compressor 0-24HP, 0-99PSIG, 100-124PSIG, 100-199HP, 100-199SCFM, 1100+SCFM, 125-149PSIG, 150-199PSIG, 200-299PSIG, 200-499HP, 200-499SCFM, 25-49HP, 50-99HP, 50-99SCFM, 500+HP, 500-799SCFM, 800-1099SCFM, a/c, air compressor, fixed, ind_aerospace, ind_automotive, ind_electronics, ind_food&bev, ind_glass&plastics, ind_manufacturing, ind_medical, ind_municipalities, ind_package, ind_petrochem, ind_power-gen, ind_water-treatment, ind_wood-products, knw-series, oil-fr

    Rogers Machinery

    Rogers - KNW Series Oil-Free Rotary Screw Air Compressor

    Rogers KNW Series Oil-Free Air Compressors  (formerly Kobelco KNW) are designed, manufactured, assembled and tested to be the longest lasting and most energy efficient oil-free, rotary screw air compressors in the world.

    • Fixed Speed or VFD
    • Air or Water-Cooled
    • 20 - 500 HP
    • 72 - 2400 SCFM
    • 40 - 150 PSIG

    For more information, please visit our Rogers Oil-Free section.

    • This product price is available on request only

      Request a Quote
    Manufactured in Portland, Oregon USA
    Need help? Call us:  1 503 639 0808

    Product details

    The Rogers KNW Series is our oil-free rotary screw air compressor that is designed, engineered and assembled in Portland, Oregon.

    • Proven TechnologyOver 65 years of field experience in all industries has proven that the ROGERS KNW Series (formerly Kobelco KNW) rotary screw design is the preferred choice for reliability, energy efficiency and serviceability.
      Two Stage DesignHeavy duty, two-stage compression module with thrust balancing for long bearing life in each stage. Designed, tested and manufactured in the USA. No other oil-free compressor manufacturer has made that commitment to the North American market.
      Coated RotorsASTM 1144 steel rotors with exclusive PTFE coating on rotors and shafts for maximum efficiency and corrosion protection. Gears and bearings are lubricated by a unique motor driven oil pump that provides positive lubrication prior to start-up, through operation and after shutdown. This is an especially important feature for VFD models and not available on competitive offerings.
      Unique Design Features

      Key design features ensure long air end life. All features may not be available on competitive models.

      • Non contact maintenance free air and oil seals
      • Thrust balance compensation
      • Cooling jackets
      • Dual vents to atmosphere ensure oil-free air
      • Vacuum degassed thrust and radial bearings
      • Premium AGMA rated gears
      • All models meet the requirements of NFPA 99 for use as a medical air compressor
    • Flow (SCFM)72 - 2,400
      Power (HP)20 - 500
      Pressure (PSIG)40 - 150
    • Rogers KNW Brochure
      Rogers KNW Brochure (Spanish)
    • Rogers KNW Brochure
      Rogers KNW Brochure (Spanish)
    Description
    Proven TechnologyOver 65 years of field experience in all industries has proven that the ROGERS KNW Series (formerly Kobelco KNW) rotary screw design is the preferred choice for reliability, energy efficiency and serviceability.
    Two Stage DesignHeavy duty, two-stage compression module with thrust balancing for long bearing life in each stage. Designed, tested and manufactured in the USA. No other oil-free compressor manufacturer has made that commitment to the North American market.
    Coated RotorsASTM 1144 steel rotors with exclusive PTFE coating on rotors and shafts for maximum efficiency and corrosion protection. Gears and bearings are lubricated by a unique motor driven oil pump that provides positive lubrication prior to start-up, through operation and after shutdown. This is an especially important feature for VFD models and not available on competitive offerings.
    Unique Design Features

    Key design features ensure long air end life. All features may not be available on competitive models.

    • Non contact maintenance free air and oil seals
    • Thrust balance compensation
    • Cooling jackets
    • Dual vents to atmosphere ensure oil-free air
    • Vacuum degassed thrust and radial bearings
    • Premium AGMA rated gears
    • All models meet the requirements of NFPA 99 for use as a medical air compressor
    Specifications
    Flow (SCFM)72 - 2,400
    Power (HP)20 - 500
    Pressure (PSIG)40 - 150
    Resources
    Rogers KNW Brochure
    Rogers KNW Brochure (Spanish)
    Brochures
    Rogers KNW Brochure
    Rogers KNW Brochure (Spanish)

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    503.639.0808

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