Kaeser – Rotary screw compressors with 1:1 direct drive CSD

CSD and CSDX Series Rotary Screw Compressors – Equipment

Complete package

  • Ready for operation
  • Fully automatic
  • Super silenced
  • Vibration-damped
  • All panels powder-coated
  • For ambient temperatures up to +45 °C
  • Service-friendly design: Motor bearing lubrication from the outside (also fan motor)


  • Single stage with cooling fluid injection for optimal rotor cooling
  • Genuine Kaeser rotary screw airend with the SIGMA Profile
  • 1:1 Direct drive

Cooling fluid and air circuit

  • Dry air intake filter with pre-filtration
  • Inlet silencer
  • Inlet and vent valves, pneumatic
  • Cooling fluid separation tank with three-stage separation system
  • Safety valve
  • Minimum pressure check valve
  • Thermostatic valve and eco fluid filter in coolant circuit
  • Fluid and compressed air cooler
  • Fan motor, speed-controlled (CSDX)
  • Centrifugal separator with electronically-controlled condensate drain for energy savings without pressure loss
  • Piping and centrifugal separator made from stainless steel

Refrigeration dryer (T models)

  • Scroll refrigerant compressor with energy-saving shut-down feature
  • Linked to operational status of the compressor when inactive
  • Alternatively, continuous operation can be selected on site
  • With electronically-controlled, energy-saving condensate drain
  • Contains fluorinated greenhouse gas R-513A

Electrical components

  • Super Premium-Efficiency IE4 drive motor with Pt100 windings temperature sensor for motor monitoring
  • Control cabinet to IP 54
  • Control cabinet ventilation
  • Automatic star-delta starter
  • Overload relays
  • Control transformer
  • SFC versions also with frequency converter


  • Traffic-light LEDs for at-a-glance operational status
  • Easy-to-read display
  • 30 selectable languages
  • Soft-touch icon buttons
  • Fully automatic monitoring and control
  • Dual, Quadro, Vario and Continuous control modes available as standard
  • Interfaces: Ethernet
  • Additional optional communication modules for: Profibus DP, Modbus, Profinet and DeviceNet
  • SD card slot for data logging and updates
  • RFID reader
  • Web server

Product PDF: Kaeser – CSD