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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
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Unit of Measure

Specifications

Brands

Kaeser Compressors

Model

BSD 50 T

Working Pressure

125 psi175 psi217 psi

Complete System Flow Rate at 125 Pound Per Square Inch (psi) Working Pressure

236 acfm

Complete System Flow Rate at 175 Pound Per Square Inch (psi) Working Pressure

190 acfm

Complete System Flow Rate at 217 Pound Per Square Inch (psi) Working Pressure

157 acfm

Maximum Positive Pressure at 125 Pound Per Square Inch (psi) Working Pressure

125 psi

Maximum Positive Pressure at 175 Pound Per Square Inch (psi) Working Pressure

175 psi

Maximum Positive Pressure at 217 Pound Per Square Inch (psi) Working Pressure

217 psi

Nominal Motor Output

50 hp

Compressed Air Connection Thread Size

1-1/2 in

Compressed Air Connection Thread Type

National Pipe Thread (NPT)

Sound Pressure Level

72 dBA

Weight at 125 Pound Per Square Inch (psi) Maximum Positive Pressure

2458 lb

Weight at 175 Pound Per Square Inch (psi) Maximum Positive Pressure

2392 lb

Weight at 217 Pound Per Square Inch (psi) Maximum Positive Pressure

2392 lb

Dimensions

Width

78 in

Depth

41 in

Height

67 in

Additional Information

Additional Information

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

Advantages

  • 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

Low Life Cycle Costs

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.

Equipment

Complete Unit

  • Ready-to-run
  • Fully automatic
  • Super soundproofing
  • Vibration dampening
  • Powder-coated panels
  • Easy access to all service points

Airend

  • Single stage with cooling fluid injection for optimal rotor cooling
  • Genuine KAESER screw compressor airend with energy-saving SIGMA Profile
  • 1:1 drive

Drive

  • Directly coupled without gears
  • High-flex, maintenance-free coupling

Cooling Fluid and Air Circuit

  • 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)

  • Optionally available with integrated fluid/water plate-type heat exchanger and additional fluid thermostatic valve
  • External connections

Integrated Refrigerated Dryer

  • 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

  • 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

  • Control cabinet to IP 54
  • Control transformer
  • Siemens frequency converter (SFC models)
  • Control cabinet ventilation
  • Automatic wye-delta starter
  • Overload relays

Sigma Control 2

  • "Traffic-light" LED indicators show operational status at a glance
  • Easy to read display
  • 30 selectable languages
  • Soft-touch keys with icons
  • Fully automated monitoring and control
  • Dual, Quadro, Vario, Dynamic, and Continuous control modes 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

Add-On Refrigerated Dryer

Refrigerated Dryer

ABT 83

Power Consumption

1.5

Pressure Dew Point

37 ºF

Refrigerant

R-513A

Global Warming Potential

631

Refrigerant Volume

2.43 lb

Refrigerant Mass as CO2 Equivalent

0.7 t