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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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DSD 125 Model 125 Horsepower (hp) Nominal Motor Output Standard Version Rotary Screw Air Compressor
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DSD 150 Model 150 Horsepower (hp) Nominal Motor Output Standard Version Rotary Screw Air Compressor
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DSD 175 Model 175 Horsepower (hp) Nominal Motor Output Standard Version Rotary Screw Air Compressor
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DSD 125 T Model 125 Horsepower (hp) Nominal Motor Output T Version Rotary Screw Air Compressor
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DSD 150 T Model 150 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 DSD 125 N/A DSD 150 N/A DSD 175 N/A DSD 125 T N/A DSD 150 T
Working Pressure N/A 110 psi125 psi N/A 110 psi125 psi175 psi N/A 110 psi125 psi175 psi217 psi N/A 110 psi125 psi N/A 110 psi125 psi175 psi
Complete System Flow Rate at 110 Pound Per Square Inch (psi) Working Pressure N/A 600 acfm N/A 721 acfm N/A 888 acfm N/A 600 acfm N/A 721 acfm
Complete System Flow Rate at 125 Pound Per Square Inch (psi) Working Pressure N/A 595 acfm N/A 717 acfm N/A 882 acfm N/A 595 acfm N/A 717 acfm
Complete System Flow Rate at 175 Pound Per Square Inch (psi) Working Pressure N/A N/A 568 acfm N/A 695 acfm N/A N/A 568 acfm
Complete System Flow Rate at 217 Pound Per Square Inch (psi) Working Pressure N/A N/A N/A 544 acfm N/A N/A
Maximum Positive Pressure at 110 Pound Per Square Inch (psi) Working Pressure N/A 130 psi N/A 125 psi N/A 125 psi N/A 130 psi N/A 125 psi
Maximum Positive Pressure at 125 Pound Per Square Inch (psi) Working Pressure N/A 130 psi N/A 125 psi N/A 125 psi N/A 130 psi N/A 125 psi
Maximum Positive Pressure at 175 Pound Per Square Inch (psi) Working Pressure N/A N/A 175 psi N/A 175 psi N/A N/A 175 psi
Maximum Positive Pressure at 217 Pound Per Square Inch (psi) Working Pressure N/A N/A N/A 217 psi N/A N/A
Nominal Motor Output N/A 125 hp N/A 150 hp N/A 175 hp N/A 125 hp N/A 150 hp
Width N/A 97 in N/A 97 in N/A 97 in N/A 108 in N/A 108 in
Depth N/A 68 in
Height N/A 85 in
Compressed Air Connection Thread Size N/A 2-1/2 in
Compressed Air Connection Thread Type N/A American National Standards Institute (ANSI) Class 150
Sound Pressure Level N/A 71 dBA N/A 73 dBA N/A 75 dBA N/A 71 dBA N/A 73 dBA
Weight at 125 Pound Per Square Inch (psi) Maximum Positive Pressure N/A N/A 6834 lb N/A 7562 lb N/A N/A 7430 lb
Weight at 130 Pound Per Square Inch (psi) Maximum Positive Pressure N/A 6812 lb N/A N/A N/A 7408 lb N/A
Weight at 175 Pound Per Square Inch (psi) Maximum Positive Pressure N/A N/A 6900 lb N/A 6989 lb N/A N/A 7496 lb
Weight at 217 Pound Per Square Inch (psi) Maximum Positive Pressure N/A N/A N/A 7055 lb N/A 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
  • Service-friendly design: External lubrication for fan motor and drive motor bearings
  • 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 energy-saving SIGMA profile
  • 1:1 Direct drive
Drive N/A
  • Directly coupled without gears
  • High-flex, maintenance-free coupling
Cooling Fluid and Air Circuit N/A
  • Dry air intake filter with pre-filtration
  • Inlet silencer
  • Pneumatic inlet and venting valves
  • Cooling fluid separator tank with three-stage separation system
  • Safety relief valve
  • Minimum pressure check valve
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
  • CFC-free
  • R-513A refrigerant
  • Zero loss ECO-DRAIN electronic condensate drain
  • Fully insulated
  • Hermetically sealed refrigerant circuit
  • Refrigerant compressor with energy-saving shut-down feature
  • Hot gas
N/A
  • CFC-free
  • R-513A refrigerant
  • Zero loss ECO-DRAIN electronic condensate drain
  • Fully insulated
  • Hermetically sealed refrigerant circuit
  • Refrigerant compressor with energy-saving shut-down feature
  • Hot gas
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
  • External bearing lubrication
Electrical Components N/A
  • Control cabinet to IP 54
  • Control cabinet ventilation
  • Automatic wye-delta starter
  • Overload relays
  • Control transformer
  • Frequency converter for fan motor
  • Siemens frequency converter (SFC models)
Sigma Control 2 N/A
  • "Traffic-light" LED indicators show operational status at a glance
  • 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 ABT 250 N/A ABT 250
Power Consumption N/A N/A N/A N/A 3 N/A 3
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 2.98 lb N/A 2.98 lb
Refrigerant Mass as CO2 Equivalent N/A N/A N/A N/A 0.9 t N/A 0.9 t
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