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Screw compressors with superior efficiency

Kaeser's direct drive rotary screw compressors range from 25 hp - 650 hp and deliver outstanding performance. Kaeser uses oversized airends specifically selected to produce the required output in flow and pressure. Compared to compressors using small, high speed, gear-driven airends, the one-to-one drive provides significant savings. With Kaeser's one-to-one drive, the airend is directly connected to the motor via a maintenance-free coupling that eliminates transmission losses.
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ASD 25 Model 25 Horsepower (hp) Nominal Motor Output Standard Version Rotary Screw Air Compressor
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ASD 30 Model 30 Horsepower (hp) Nominal Motor Output Standard Version Rotary Screw Air Compressor
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ASD 40S Model 40 Horsepower (hp) Nominal Motor Output Standard Version Rotary Screw Air Compressor
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ASD 40 Model 40 Horsepower (hp) Nominal Motor Output Standard Version Rotary Screw Air Compressor
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ASD 25 T Model 25 Horsepower (hp) Nominal Motor Output T Version Rotary Screw Air Compressor
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Description N/A Screw compressors with superior efficiency

Kaeser's direct drive rotary screw compressors range from 25 hp - 650 hp and deliver outstanding performance. Kaeser uses oversized airends specifically selected to produce the required output in flow and pressure. Compared to compressors using small, high speed, gear-driven airends, the one-to-one drive provides significant savings. With Kaeser's one-to-one drive, the airend is directly connected to the motor via a maintenance-free coupling that eliminates transmission losses.
Brands N/A Kaeser Compressors
Model N/A ASD 25 N/A ASD 30 N/A ASD 40S N/A ASD 40 N/A ASD 25 T
Working Pressure N/A 125 psi N/A 125 psi145 psi175 psi N/A 125 psi145 psi175 psi217 psi N/A 125 psi145 psi175 psi217 psi N/A 125 psi
Complete System Flow Rate at 125 Pound Per Square Inch (psi) Working Pressure N/A 112 acfm N/A 132 acfm N/A 162 acfm N/A 125 acfm N/A 112 acfm
Complete System Flow Rate at 145 Pound Per Square Inch (psi) Working Pressure N/A N/A 111 acfm N/A 130 acfm N/A 145 acfm N/A
Complete System Flow Rate at 175 Pound Per Square Inch (psi) Working Pressure N/A N/A 110 acfm N/A 127 acfm N/A 175 acfm N/A
Complete System Flow Rate at 217 Pound Per Square Inch (psi) Working Pressure N/A N/A N/A 106 acfm N/A 217 acfm N/A
Maximum Positive Pressure at 125 Pound Per Square Inch (psi) Working Pressure N/A 125 psi
Maximum Positive Pressure at 145 Pound Per Square Inch (psi) Working Pressure N/A N/A 175 psi N/A 175 psi N/A 175 psi N/A
Maximum Positive Pressure at 175 Pound Per Square Inch (psi) Working Pressure N/A N/A 175 psi N/A 175 psi N/A 175 psi N/A
Maximum Positive Pressure at 217 Pound Per Square Inch (psi) Working Pressure N/A N/A N/A 217 psi N/A 217 psi N/A
Nominal Motor Output N/A 25 hp N/A 30 hp N/A 40 hp N/A 40 hp N/A 25 hp
Width N/A 58 in N/A 58 in N/A 58 in N/A 58 in N/A 70 in
Depth N/A 35 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 66 dBA N/A 67 dBA N/A 67 dBA N/A 69 dBA N/A 66 dBA
Weight N/A 1345 lb N/A 1369 lb N/A 1574 lb N/A 1499 lb N/A 1,554 lb
Weight at 125 Pound Per Square Inch (psi) Maximum Positive Pressure N/A
Weight at 175 Pound Per Square Inch (psi) Maximum Positive Pressure N/A
Weight at 217 Pound Per Square Inch (psi) Maximum Positive Pressure N/A
Ambient Temperature N/A Up to +115 ºF
Additional Information N/A Our fluid-injected rotary screw compressors are the perfect choice for industrial compressed air applications. Not sure which model you need? We're happy to help you determine the right solution.
Advantages N/A
  • Exceptional efficiency - IE3 and IE4 motors with premium efficiency performance provide additional energy savings.
  • Longer service life - Electronic thermal management dynamically controls the fluid temperature of our ASD - HSD series for increased energy efficiency. The ETM prevents internal condensation build up, eliminating a common cause of lubricant degradation.
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 screw compressor airend with energy-saving SIGMA Profile
  • 1:1 drive
Drive N/A
  • Directly coupled without gears
  • High-flex, maintenance-free coupling
Cooling Fluid and Air Circuit N/A
  • Dry air filter
  • Pneumatic inlet and venting valves
  • Cooling fluid separator tank with three-stage separator system
  • Safety relief valve
  • Minimum pressure/check valve
  • ETM Electronic Thermal Management and eco flu
Heat Recovery (HR) (Option) N/A
  • Optionally available with integrated fluid/water plate-type heat exchanger and additional fluid thermostatic valve
  • External connections
Integrated Refrigerated Dryer N/A N/A N/A N/A N/A
  • CFC-free
  • R-513A refrigerant
  • Fully insulated
  • Hermetically sealed refrigerant circuit
  • Refrigerant compressor with energy-saving shut-down feature
  • Hot gas bypass control
  • Zero loss ECO-DRAIN electronic c
Electric Motor N/A
  • IE4 super premium efficiency motor
  • IP 55
  • Totally enclosed fan-cooled motor (TEFC)
  • Class F insulation for greater power reserve
  • Pt100 winding temperature transducer for motor monitoring
  • Regreasable bearings
Electrical Components N/A
  • Control cabinet to IP 54
  • Control transformer
  • Siemens frequency converter with synchronous reluctance motor with IES2 provides improved efficiency to the entire drive (SFC models)
  • Control cabinet ventilation
  • Automatic wye-delta starter
  • Overload relays
Sigma Control 2 N/A
  • Traffic-light LEDs for at-a-glance operational status
  • Easy-to-read display
  • 30 selectable languages
  • Soft-touch keys with icons
  • Fully automatic monitoring and control
  • Dual, Quadro, Vario, Dynamic, and Continuous control modes included as standard
  • Interfaces: Ethernet
  • Additional optional communication 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 N/A ABT 60
Power Consumption N/A N/A N/A N/A N/A 1.3
Pressure Dew Point N/A N/A N/A N/A N/A 37 ºF
Refrigerant N/A N/A N/A N/A N/A R-513A
Global Warming Potential N/A N/A N/A N/A N/A 631
Refrigerant Volume N/A N/A N/A N/A N/A 1.65 lb
Refrigerant Mass as CO2 Equivalent N/A N/A N/A N/A N/A 0.5 t
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