Reliable Rotary Screw Compressors That Help Cut Energy Use

With service centers nationwide and our 24-hour emergency parts guarantee, Kaeser customers can rely on the best after-sales support in the industry. From global corporations to intelligent trades businesses; from food production to aerospace: Our customers benefit day in, day out, from the quality, safety, and cost efficiency that a Kaeser compressed air supply brings. the Kaeser success story Learn about our development from a machine shop to one of the world's most successful manufacturers of compressed air systems. Rotary screw compressors with quality you can count on Our industrial rotary screw air compressor collection powers production processes with a reliable supply of quality compressed air in countless industrial , trade, and workshop applications . It is the preferred choice for users requiring constant pressure for extended periods of time. To ensure that our screw compressors operate as efficiently as possible, we developed our own special rotor profile. Our SIGMA profile rotors provide energy savings of up to 15% compared to other conventional rotor profile designs. Our precision-machined and generously sized roller bearings help give our SIGMA profile airends an exceptionally long service life. All of this, combined with our state-of-the art in-house manufacturing processes and strict manufacturing tolerances deliver the exceptional level of quality synonymous with the KAESER name. Note about Kaeser fluids PFAS are a diverse group of synthetic chemicals used in a wide range of consumer and industrial products. These “forever chemicals” have been shown to accumulate in the environment and human bodies, and are linked to adverse health effects. While some industrial lubricants contain PFAS, KAESER does not sell any lubricants containing these compounds! Compressed Air Stations Space-saving combinations that include a rotary screw compressor, air receiver, and refrigerated dryer Convenient control with SIGMA CONTROL KAESER rotary screw compressors with belt drive provide outstanding efficiency and reliability. Series: SX, SM, SK, AS Available with optional refrigerated dryer, variable-speed control and/or air receiver Intuitive control with SIGMA CONTROL Powerful and energy-efficient: Mid-sized rotary screw compressors ensure a dependable supply of compressed air for workshops and industrial operations. Series: ASD, BSD, and CSD Available with refrigerated dryer and/or variable-speed control Large, low-speed airends save additional energy. Rotary screw compressors up to 3143 cfm for large-scale industrial operations. Series: DSD, ESD, FSD and HSD HSD: Two independent compressor units within a single compact housing SIGMA CONTROL controllers precisely match operation to actual compressed air demand. The technology behind every rotary screw air compressor delivers a steady, pulse-free air supply at constant pressure, ideal for processes that run for long shifts or around the clock. The design maintains performance under varying loads, so tools, instrumentation, and automation run consistently without pressure dips. Other advantages include: High Efficiency by Design Our screw compressor elements use an optimized rotor profile and tight manufacturing tolerances to reduce internal leakage and compression losses. The result: lower specific power and reduced energy spent over the unit's lifetime. Efficient airends paired with right-sized drive systems and optional variable speed control help match output to demand and cut off-load waste. Long Service Life, Low Lifecycle Cost Precision-machined, generously sized bearings and rigid housings support the rotors and minimize wear. Thoughtful component layout simplifies access, shortens service routines, and helps keep maintenance budgets predictable. Over time, the combination of durable airends and straightforward service translates into a lower total cost of ownership. Clean, Dry Air Quality ntegrated rotary screw compressor packages can include dryers, filtration, drains, and controls to deliver the air quality your process requires. Properly conditioned air protects downstream equipment, reduces scrap and rework, and helps maintain consistent product quality. Quiet, Compact, and Easy to Integrate A rotary screw air compressor operates with low vibration and sound levels compared to many alternatives. Compact footprints and enclosure options make installation flexible on the plant floor or in dedicated compressor rooms with straightforward ducting and ventilation.<.p> Intelligent Controls and Connectivity Advanced controllers monitor temperature, pressure, load/unload conditions, and service intervals to protect the machine and optimize performance. Connectivity options enable remote monitoring, trend analysis, and coordination of multiple machines to balance run hours and efficiency. Heat Recovery Opportunities A significant portion of input energy becomes heat. With optional heat recovery , that thermal energy can be repurposed for space heating, process water preheating, or other facility needs, which turns waste into measurable savings. Built for Reliability in Real-World Conditions Robust cooling systems, efficient separation of air and lubricant, and protective filtration help the rotary screw air compressor handle dusty, hot, or humid environments. Consistent performance under these conditions supports uptime targets and production schedules. Environmental Stewardship Because we do not sell lubricants containing PFAS compounds, we can help facilities meet internal sustainability goals while reducing potential environmental risk tied to "forever chemicals." Scalable Solutions for Any Demand Profile From single, fixed-speed units to coordinated, variable-speed systems, rotary screw compressor packages scale with your facility's growth. Modular options, ancillary air treatment, and master controls make it simple to expand capacity without compromising efficiency or air quality. Kaeser Rotary Screw Air Compressor Applications We engineer each Kaeser rotary screw air compressor to perform across numerous industries , powering everything from precision manufacturing to heavy industrial processes. Their reliable, energy-efficient design and consistent air delivery make our compressors indispensable wherever uptime and quality are critical. No matter the application, we design every Kaeser rotary screw air compressor for efficiency and long service life. With intelligent controls and flexible configurations, Kaeser systems adapt to the specific air requirements of each industry, delivering dependable performance day after day. The Story of Kaeser Compressors Discover where we got our start and learn how KAESER builds dependability and durability into every rotary screw air compressor. Frequently Asked Questions Why choose an oil-free vs. a non-oil-free compressor? The choice depends on your air quality requirements. Oil-free compressors are ideal for industries where even trace oil contamination could affect product integrity or compliance, such as food processing, pharmaceuticals, and electronics manufacturing. They use specially coated compression elements and do not introduce lubricants into the compression chamber. Is a rotary screw air compressor better than other types? For most continuous-duty industrial applications, yes. A rotary screw air compressor delivers a steady flow of compressed air at constant pressure with minimal pulsation. It is quieter, more efficient, and more reliable for long-term operation compared to a piston (reciprocating) compressor. Does a rotary screw air compressor need an air tank? An air receiver tank is not always required, but it often improves system performance. The tank provides air storage and pressure stability, allowing the compressor to cycle less frequently and maintain consistent pressure during peak demand. It also helps remove condensate and can buffer the system when multiple tools or machines start at once. We can configure systems with or without integrated air receivers, depending on your application, control strategy, and demand profile. Find the Right Rotary Screw Air Compressor Every facility has unique air demands, and Kaeser's experts can help you identify the most efficient, reliable solution for your operation. Contact us today to discuss your compressed air needs and learn how a Kaeser rotary screw compressor can improve productivity and uptime across your operation. Request a Quote We can help you optimize your compressed air installation. Contact us for a quote or to talk to a Kaeser representative about our products. Important Alert We are aware of two e-commerce websites that are falsely advertising KAESER products online. Search by HP Search by CFM Kaeser's engineered solutions are customized to your specifications. Let us help you design a compressed air solution that works for you. What our customers say “The Gray Solutions Innovation Center now has a proper compressed air supply system! Many thanks to Kaeser Compressors for the efficient and quiet SK 20 AIRCENTER. No more noisy, point-of-use piston compressors for us.” Andy Thompson Kaeser Talks Shop Our blog features articles on current topics in the compressed air industry. Our experts clarify common misconceptions and current industry buzz words in short, concise, easy to follow entries. For a limited time take advantage of unbeatable pricing on a pair of SM 10 hp or SM 15 hp units, with an optional air treatment package!