In Compressed air packages featuring 1:1 direct drive the motor drives the airend directly without transmission loss via a maintenance-free compuling. 1:1 direct drive rotary screw compressors provide outstanding performance and enable significant savings. KAESER's comprehensive range of specially designed airends are manufactured and developed to meet every compressed air user's needs.

Triple savings with 1:1 drive:

> No powertransmission losses
> Large, low speed airends provide more air for less energy consumptions
> Reduced maintenance costs.

Unique cooling air flow

Kaeser's unique cooling air flow concept provides significant advantages compared to conventional systems: The air is drawn in via the cooler to the cooler cabinet and is directly exhausted upwards. Consequently, the inside of the unit remains untouched by the main cooling air flow and contaminant particles contained in the air collect on the air intake side of the cooler. Clogging is easily noticed and quickly cleaned. off without the need for any dismantling work. Operational reliability is improved and maintenance requirement is significantly reduced. (DSD Series)