Introducing the KAESER SK.3 Series

From improved performance, reduced operating costs, and intelligent connectivity: the redesigned SK Series of rotary screw compressor packages has been re-imagined by KAESER from proven technology.

The compact, stationary, fluid-injected systems deliver flow rates of up to 2.81 m³/min at pressures of up to 15 bar, combining high performance with maximum energy efficiency.

Energy costs can account for up to 80 percent of the total expenditure over the lifetime of a compressor, so KAESER’s primary focus during development of this impressive new SK Series was on comprehensive optimisation of efficiency.

At the heart of the new SK Series is a redesigned screw compressor block featuring the flow-optimised SIGMA Profile. Together with highly efficient IE3 Premium Efficiency motors and reduced internal pressure losses, it generates significantly more compressed air while consuming less power.

An additional 9 kW power stage (fixed speed only) has been added to the traditional 11 and 15 kW SK Series model options. Six pressure variants of 6.0, 7.5, 8.5, 10, 12, and 15 bar are now available for fixed speed compressor packages. This allows for better adaptation to the customer’s line pressure to provide more compressed air and improved performance.

Flexibility Through a Modular Design Concept

Thanks to their vertical, space-saving design, SK Series compressors integrate perfectly even into confined operating environments. With its modular concept, the series offers tailored solutions for a wide variety of requirements and applications:

• Basic version: Fixed-speed machine with the highest possible energy efficiency
• T model: Equipped with an integrated, thermally separated refrigeration dryer to ensure consistent compressed air quality and a stable pressure dew point
• SFC version: Optionally available with a variable frequency drive for stepless speed control (for 11 kW and 15 kW models), ensuring maximum energy efficiency even when compressed air demand fluctuates
• AIRCENTER: A turnkey complete station integrating the compressor, refrigeration dryer, and a 350-litre compressed air receiver mounted underneath. Thanks to its ease of installation concept, only the electrical connection and connection to the compressed air network are required for commissioning

Intelligent Control and Quiet Operation

The innovative technology of the integrated SIGMA Control 3M compressor controller ensures optimal monitoring and system integration. Featuring a high-resolution touchscreen and intuitive menu navigation, it clearly displays live operating data in real time. Via an Ethernet interface, the system can be seamlessly integrated into the KAESER SIGMA Network and higher-level management systems such as SIGMA Air Manager 4.0. This enables predictive maintenance and automatically adjusts compressed air generation to actual air demand and production processes.

The new SK Series also impresses in terms of ergonomics and serviceability. A newly developed cooling-air system with a dual-flow fan not only lowers operating temperatures but also significantly reduces noise levels. With a sound level of 66 dB (A), normal conversation and active work stations are easily possible directly beside the compressor package while it’s operating. All maintenance points are accessible from one side through the easily removable left housing panel, minimising downtime.

Energy-saving Heat Recovery System Option

Virtually 100% of the electrical energy supplied to a rotary screw compressor is converted into heat energy and up to 96%* of this energy can be recovered and reused for heating purposes using air compressor heat recovery systems.

Heat recovery systems are optionally available for all SK Series models. Mounting of the system is external and retrofitting is possible (if prepared ex-works). A robust stainless steel heat exchanger can:

• Help reduce consumption of fuels like oil or gas
• Help reduce heating costs and a businesses CO2 footprint
• Help generate heating or process water of up to 70° C

* applies to the use of warm exhaust air and depends on the operating conditions.

ABOUT US:

Award-winning compressed air and fluid power specialists in Scotland for over 45 years and 5 Star Rated on Google; we provide expert, professional assistance and advice for all makes and types of air compressors, compressed air equipment, on-site nitrogen generator systems and fluid power products.

Our established regional Sales & Service Centres in GLASGOW, PERTH, ABERDEEN, and INVERNESS contribute to our success as a respected and trusted supplier of reliable compressed air systems and services. Each Centre offers a diverse range of high-quality compressed air products, professional services, and innovative solutions, delivering low compressed air costs with maximum availability.

Our systems and installations can be found throughout Scottish businesses and industries. Our excellent team of specialist compressed air engineers are multi-skilled, factory-trained, and have comprehensive experience installing, servicing, and maintaining compressed air and nitrogen systems.

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