Performance, Precision, Partnership

FSD Series 1:1 Direct Drive Compressors


Complete Unit

  • Ready for operation
  • Fully automatic
  • Super sound-proofed
  • Vibration-damped
  • All panels powder-coated
  • For ambient temperatures up to +45 °C


Sound Insulation

  • Panels lined with laminated mineral wool



  • Single stage with cooling fluid injection for optimal rotor cooling
  • Genuine KAESER rotary screw airend with energy-saving SIGMA profile



  • Directly coupled without gearing
  • High-flex coupling


Electric motor

  • IE3 premium efficiency motor
  • Premium quality German-made motor
  • IP 55
  • Insulation class F for greater power reserve
  • Pt100 winding temperature transducer for motor monitoring
  • Bearing lubrication from the outside


Connection from motor to airend

  • Cast coupling flange


Electrical components

  • Control cabinet to IP 54
  • Automatic star-delta starter
  • Overload protection
  • Control transformer
  • Floating contacts provided for ventilation control


Fluid and air flow

  • Dry air filter
  • Pneumatic inlet and venting valves
  • Cooling fluid reservoir with three-stage separator system
  • Pressure relief valve
  • Minimum pressure/check valve
  • Thermostatic valve and micro-filter in coolant circuit
  • All fully piped
  • Flexible couplings



  • Air-cooled
  • Separate aluminium coolers for compressed air and fluid
  • Radial fan with separate electric motor
  • Bearing lubrication from the outside
  • Optionally available in water-cooled design with either plate-type or shell and tube heat exchanger


Heat recovery (Option)

  • Optionally available with PTG plate-type or SWT safety heat exchangers
  • External installation




  • "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
  • Selection of Dual, Quadro, Vario and Continuous control as standard
  • Interfaces: Ethernet
  • Additional optional communications modules for: Profibus DP, Modbus, Profinet and DeviceNet
  • SD-card slot for data-logging and updates
  • RFID reader
  • Web server