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Rotary screw compressors with impressive performance

Kaeser rotary screw compressors with V-belt drive provide outstanding efficiency and reliability. They feature the energy-saving SIGMA profile rotor and a Sigma Control 2 (or, optionally, Sigma Control Basic) controller.
AS 20 Model 20 Horsepower (hp) Nominal Motor Standard Version Rotary Screw Compressor
Unit of Measure
Items AS 20 Model 20 Horsepower (hp) Nominal Motor Standard Version Rotary Screw Compressor
1150
AS 20 Model 20 Horsepower (hp) Nominal Motor Standard Version Rotary Screw Compressor
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1151
AS 25 Model 25 Horsepower (hp) Nominal Motor Standard Version Rotary Screw Compressor
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1152
AS 30 Model 30 Horsepower (hp) Nominal Motor Standard Version Rotary Screw Compressor
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1153
AS 20 T Model 20 Horsepower (hp) Nominal Motor T Version Rotary Screw Compressor
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1154
AS 25 T Model 25 Horsepower (hp) Nominal Motor T Version Rotary Screw Compressor
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Description N/A Rotary screw compressors with impressive performance

Kaeser rotary screw compressors with V-belt drive provide outstanding efficiency and reliability. They feature the energy-saving SIGMA profile rotor and a Sigma Control 2 (or, optionally, Sigma Control Basic) controller.
Brands N/A Kaeser Compressors
Model N/A AS 20 N/A AS 25 N/A AS 30 N/A AS 20 T N/A AS 25 T
Working Pressure N/A 125 psi160 psi217 psi
Complete System Flow Rate at 125 Pound Per Square Inch (psi) Working Pressure N/A 99 acfm N/A 120 acfm N/A 141 acfm N/A 99 acfm N/A 120 acfm
Complete System Flow Rate at 160 Pound Per Square Inch (psi) Working Pressure N/A 85 acfm N/A 102 acfm N/A 122 acfm N/A 85 acfm N/A 102 acfm
Complete System Flow Rate at 217 Pound Per Square Inch (psi) Working Pressure N/A 64 acfm N/A 85 acfm N/A 100 acfm N/A 64 acfm N/A 85 acfm
Maximum Positive Pressure at 125 Pound Per Square Inch (psi) Working Pressure N/A 125 psi
Maximum Positive Pressure at 160 Pound Per Square Inch (psi) Working Pressure N/A 160 psi
Maximum Positive Pressure at 217 Pound Per Square Inch (psi) Working Pressure N/A 217 psi
Nominal Motor Output N/A 20 hp N/A 25 hp N/A 30 hp N/A 20 hp N/A 25 hp
Width N/A 32 in
Depth N/A 44 in N/A 44 in N/A 44 in N/A 58 in N/A 58 in
Height N/A 60 in
Compressed Air Connection Thread Size N/A 1-1/4 in
Compressed Air Connection Thread Type N/A National Pipe Thread (NPT)
Sound Pressure Level N/A 67 dBA N/A 69 dBA N/A 71 dBA N/A 67 dBA N/A 69 dBA
Weight N/A 1069 lb N/A 1113 lb N/A 1157 lb N/A 1279 lb N/A 1323 lb
Ambient Temperature N/A Up to +115 ºF
Additional Information N/A All series are available as standard models but also with
  • Integrated refrigerated dryer for high compressed air quality and/or
  • Speed-controlled motor for a large flow rate control range. (SM, SK and AS series)
We will gladly help you determine which model is the perfect solution for you.
Advantages N/A
  • Highly-efficient power transmission - The quality drive belt with automatic tensioning device ensures consistent transmission efficiency and excellent drive system reliability over the entire service life.
  • Easy maintenance - The housing is easily opened. All components are logically arranged and easy to access. Maintenance is quick and simple.
  • Exceptionally quiet - The soundproofed housing reduces operational noise to a minimum. Normal conversation can take place right next to the compressor.
Low Life Cycle Costs N/A Our comprehensive approach to life cycle cost management: Superior efficiency, easy operation, service-friendliness, and a global service and consulting network with fast response times.
Complete Unit N/A
  • Ready-to-run
  • Fully automatic
  • Super soundproofing
  • Vibration dampening
  • Powder-coated panels
  • Easy access to all service points
Airend N/A
  • Single stage with cooling fluid injection for optimal rotor cooling
  • Genuine Kaeser rotary screw airend with SIGMA Profile
  • Multi-ribbed, single belt drive
Drive N/A Multi-ribbed belt drive with automatic belt tensioning
Cooling Fluid and Air Circuit N/A
  • Dual flow fan and separate air flow channels for motor cooling, the fluid/compressed air cooler, the control cabinet and interior of the machine
  • Dry air filter
  • Pneumatic inlet and venting valves
  • Cooling fluid reservoir with
Heat Recovery (HR) (Option) N/A Optionally available with integrated heat recovery system (plate-type heat exchanger)
Integrated Refrigerated Dryer N/A N/A N/A N/A
  • CFC-free
  • R-513A refrigerant
  • Fully insulated
  • Hermetically sealed refrigerant circuit
  • Refrigerant compressor with energy-saving, cycling shut-down feature
  • Hot gas bypass control
  • Zero loss electronic co
N/A
  • CFC-free
  • R-513A refrigerant
  • Fully insulated
  • Hermetically sealed refrigerant circuit
  • Refrigerant compressor with energy-saving, cycling shut-down feature
  • Hot gas bypass control
  • Zero loss electronic co
Electric Motor N/A
  • Premium efficiency IE3
  • Totally enclosed fan-cooled motor (TEFC)
  • Class F insulation for greater power reserve
Electrical Components N/A
  • Control cabinet IP 54
  • Control transformer
  • Siemens frequency converter (SFC models)
  • Automatic wye-delta starter
  • Overload relays
  • Control cabinet ventilation
Sigma Control 2 N/A
  • Traffic-light" LED indicators show operational status at a glance
  • Plain text display
  • 30 selectable languages
  • Soft-touch keys with icons
  • Fully automated monitoring and control
  • Dual, Quadro, Vario, Dynamic, and Continuous control included as standard
  • Interfaces: Ethernet
  • Additional optional communications modules for: Profibus DP, Modbus, Profinet, DeviceNet, and EtherNet/IP
  • SD card slot for data-logging and updates
  • RFID reader
  • Web server
Refrigerated Dryer N/A N/A N/A N/A ABT 40 N/A ABT 40
Power Consumption N/A N/A N/A N/A 0.9 N/A 0.9
Pressure Dew Point N/A N/A N/A N/A 37 ºF N/A 37 ºF
Refrigerant N/A N/A N/A N/A R-513A N/A R-513A
Global Warming Potential N/A N/A N/A N/A 631 N/A 631
Refrigerant Volume N/A N/A N/A N/A 1.26 lb N/A 1.26 lb
Refrigerant Mass as CO2 Equivalent N/A N/A N/A N/A 0.4 t N/A 0.4 t
Note N/A The refrigerated dryer series contains fluorinated greenhouse gases. The refrigerant in all models has been switched from R-134a (GWP 1430) to R-513A (GWP 631) as of 2019.