Rotary Screw Air Compressors

Standard design rotary screw air compressors

Rotary screw compressors to 22 kW

Technical Specifications

Series: SX – ASK
Motor power: 2.2 to 22 kW
Delivery: 0.26 to 3.5 m³/min
Standard pressure: 8/11/15 bar(g)

Efficient KAESER V-belt drive

KAESER screw compressors with V-belt drive provide outstanding efficiency and reliability. KAESER was one of the first compressor manufacturers to introduce the V-belt drive system. The KAESER drive is characterised by an automatic tensioning device that ensures constant transmission efficiency and reduced maintenance costs. SX series models are equipped with a flat drive belt that does not require additional tensioning.
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Rotary screw compressors with 1:1 drive to 500 kW

Technical Specifications

Series: ASD to HSD
Motor power: 18.5 to 500 kW
Delivery: 2.09 to 86 m³/min
Standard pressure: 5.5 to 15 bar(g)

Why 1:1 drive?

In compressed air packages featuring 1:1 direct drive the motor drives the airend directly without transmission loss via a maintenance-free coupling. 1:1 direct drive rotary screw compressors provide outstanding performance and enable significant savings.
KAESER's comprehensive range of specially designed airends are manufactured and developed to meet every compressed air user’s needs.

Rotary screw compressors with refrigeration dryer

All-in-one rotary screw compressor systems - up to 22 kW

Technical Specifications

All-in-one system:

Series: SXC
Motor power: 2.2 to 5.5 kW
FAD: 0.26 to 0.8 m³/min
Standard pressures: 8/11/15 bar(g)
Equipped with SIGMA CONTROL BASIC

All-in-one system:

Series: Aircenter
Motor power: 2.2 to 15 kW
FAD: 0.26 to 2.2 m³/min
Standard pressures: 8/11/15 bar(g)

Version with refrigeration dryer only:

Series: SX T, SM T, SK T and ASK T
Motor power: 2.2 to 22 kW
FAD: 0.26 to 3.5 m³/min
Standard pressures: 8/11/15 bar(g)

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Space-saving combination of rotary screw compressor and refrigeration dryer

With KAESER's intelligent system design, the compressor and refrigeration dryer are both completely separate, independently functioning modules. This protects the dryer from exposure to heat from the compressor package thereby enhancing reliability.

Energy saving refrigeration dryers

The dryer shut-down feature, which can be selected via the compressor controller, is linked to compressor operation and significantly reduces energy consumption. All components are generously sized yet are easily accessible for maintenance and servicing work.

Aircenter and SXC – Compact compressed air systems

The KAESER AIRCENTER is a complete, turnkey system for the production of dry compressed air. The arrangement of a KAESER screw compressor with its highly efficient SIGMA-Profile airend, together with an energy-efficient refrigeration dryer mounted on an air receiver creates a compact and highly economical package. Furthermore, AIRCENTER and SXC units are far less work-intensive to install than conventional compressed air systems.
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Modular rotary screw compressors with refrigeration dryer - to 132kW

Technical Specifications

Series: ASD T to DSD T
Motor power: 18.5 to 132 kW
FAD: 2.09 to 23.8 m³/min
Standard pressures: 8/11/15 bar(g)

Innovative: ASD T to DSD T series

These advanced rotary screw compressors are versatile, reliable and highly efficient.
With an integrated refrigeration dryer module, these complete air systems provide a dependable source of quality compressed air.
As the air compressor and refrigeration dryer are installed in separate cabinets, the dryer is not exposed to heat from the compressor package.

Energy-saving refrigeration dryers

The dryer shut-down feature – which is linked to compressor operation – significantly reduces energy consumption.

Turnkey operation

Attached to the compressor unit, the refrigeration dryer module is delivered fully connected and ready for operation. The separate cabinet design allows the dryer components to be generously sized yet easily accessible and shields the dryer from exposure to heat arising from the compression process.
The optimised cooling system ensures reliable air package operation up to an ambient temperature of +45 °C.

Rotary screw compressors with variable speed drive

Rotary screw compressors with SIGMA FREQUENCY CONTROL

Technical Specifications

Series: SM SFC to HSD SFC
Motor power: 7.5 to 515 kW
Delivery: 0.30 to 86 m³/min
Standard pressure: 6 to 15 bar(g)

SFC = SIGMA FREQUENCY CONTROL

Exceptionally Efficient

SM SFC to HSD SFC series compressors from Kaeser are exceptionally efficient variable-speed rotary screw compressors. SM, SK and ASK SFC models use Kaeser’s minimal maintenance V-belt drive system, which features automatic belt tensioning to ensure optimum power transmission. Larger models from the ASD SFC upwards are equipped with the speed-controlled 1:1 direct drive.
The large, slow-speed KAESER airends with energy-saving SIGMA PROFILE rotors provide outstanding performance across the entire control range.
Every Kaeser SFC compressor model is capable of 100 percent duty cycles without any increase in maintenance requirement.
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