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DSD & DSDX Series

You can meet virtually any compressed air demand with fluid-injected rotary screw compressors from Kaeser. We offer a huge selection of compressors ranging from 18.5 kW right up to 315 kW. All models are equipped with energy-saving 1:1 direct drive. The motor drives the airend directly without transmission loss via a maintenance-free coupling.

You can choose between the following models:

* For integration in your compressed air station: our basic model
* With refrigeration dryer for high compressed air quality: T versions (ASD, BSD, CSD, CSDX and DSD series)
* With variable-speed drive for optimal efficiency and broad control range: SFC models
* New: With synchronous reluctance motor: Significantly greater efficiency – especially in the partial load range – than comparable asynchronous systems enables considerable energy savings.
* As complete solutions with integrated refrigeration dryer and variable-speed drive: T SFC versions (ASD, BSD, CSD, CSDX and DSD series)

Exceptional efficiency: The use of IE3 motors has been mandatory in the EU since January 2015. Furthermore, we already use IE4 motors in our BSD – FSD models with 1:1 drive to provide you with even further energy savings.

Longer service life:
Electronic thermal management dynamically controls the fluid temperature of ASD, BSD, CSD, CSDX, DSD, DSDX, ESD and FSD series compressors. This not only saves additional energy, but also reliably prevents condensate formation and associated moisture damage.

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)

Airend
* 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
* Thermo management (ETM) and eco fluid filter in coolant circuit
* Fluid and compressed air cooler (air-cooled as standard)
* Two fan motors, one variable-speed
* Kaeser centrifugal separator with electronically-controlled condensate drain for energy savings without pressure loss
* Piping and centrifugal separator made of stainless steel
* Optionally available water-cooled version: Fluid and compressed air aftercooler implemented as water-cooled plate or optionally available tube-type heat exchanger.

Heat recovery (Option)
* Optionally available with integrated fluid/water plate-type heat exchanger and additional fluid thermostatic valve
* External connections

Refrigeration dryer (DSD)
* Contains fluorinated greenhouse gas R-513A
* GWP (Global Warming Potential) 631
* Refrigerant charge 1.35 kg
* CO2 equivalent 0.85 t
* With energy-saving shut-down feature
* ECO-DRAIN electronic condensate drain
* Upstream Kaeser centrifugal separator
* Compressed air connection 65 PN 16

Electrical components
* Super Premium Efficiency IE4 drive motor with three Pt100 temperature transducers for * engine windings monitoring
* Control cabinet to IP 54
* Control cabinet ventilation
* Automatic star-delta starter
* Overload relays
* Control transformer
* Frequency converter for fan motor
* SFC versions also with frequency converter for drive motor

SIGMA CONTROL 2 (HR)
* 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

The technical specifications can be found in this brochure:

Rotary Screw Compressors DSD Series – Brochure

Rotary Screw Compressors DSDX Series – Brochure