CompAir Ultima™

The next generation of oil-free screw compressors

The CompAir Ultima™ represents a technological leap in oil-free compressed air generation. As a completely newly developed two-stage screw compressor, the Ultima is not only 100% oil-free and silicone-free but also features an entirely new drive concept that combines maximum energy efficiency with state-of-the-art digitalisation.

Whether in food and beverage production, the pharmaceutical industry, electronics manufacturing, cleanrooms or medical applications – wherever uncompromisingly pure compressed air is required, the Ultima sets new standards.

Motor power

75 kW to 160 kW

Pressure range

4 bar to 10 bar

Flow rate

6.7 m³/min to 23.9 m³/min

Technological edge: how the Ultima works

Unlike conventional two-stage compressors, in which a single electric motor drives both compression stages via a gearbox, the Ultima does away with mechanical gearboxes entirely. Instead it has:

Two separate compression stages (for low and high pressure)
Two variable-speed, high-efficiency permanent magnet synchronous motors (PM)
Digitally controlled regulation system that controls the speed of both stages independently of each other

This concept allows optimum adaptation to the actual compressed air demand – in real time and at maximum efficiency. Eliminating the gearbox and mechanical coupling significantly reduces friction losses, oil requirements, noise and maintenance costs.

Benefits of the Ultima™ at a glance

Ultimate efficiency – even at part load

The Ultima’s strengths come into their own especially when air demand fluctuates:

Thanks to the separate drives, each compression stage can be controlled exactly as the application requires. Unlike conventional machines, in which both stages must run in synchrony, the Ultima allows precise control of each stage independently.

The result:

Highest efficiency in the part-load range
Reduced energy consumption in every operating phase
Significantly lower power requirement in idle mode

Heat recovery – using energy twice

The Ultima’s strengths come into their own especially when air demand fluctuates:

The result:

Highest efficiency in the part-load range
Reduced energy consumption in every operating phase
Significantly lower power requirement in idle mode

Digitally connected with iConn

The Ultima is fully iConn-compatible – CompAir’s modern IoT platform for digital compressed air monitoring.

With iConn you get:

Real-time monitoring of all relevant compressor and system data
Condition-based maintenance instead of fixed intervals
Early warning systems to prevent unplanned downtime
Historical analyses of energy balance, operating hours and trends
Remote access via web, app or customised dashboard

iConn increases plant availability, lowers operating costs and supports proactive maintenance strategies.

Technical data

Model	Cooling method	Operating pressure [bar g]	Motor power [kW]	Flow rate¹ 8 bar g, min. – max. [m³/min]	Flow rate¹ 10 bar g, min. – max. [m³/min]	Sound pressure level² at 100% load [dB(A)]	Dimensions L × W × H [mm]	Weight [kg]
U75	Air	4 – 10	75	6,7 – 11,9	7,7 – 9,9	64	3244 × 1394 × 1992	3360
U75	Water	4 – 10	75	6,7 – 11,9	7,7 – 9,9	63	2044 × 1394 × 1992	2750
U90	Air	4 – 10	90	6,7 – 14,9	7,7 – 12,7	65	3244 × 1394 × 1992	3360
U90	Water	4 – 10	90	6,7 – 14,9	7,7 – 12,7	64	2044 × 1394 × 1992	2750
U110	Air	4 – 10	110	6,7 – 18,5	7,7 – 16,3	65	3244 × 1394 × 1992	3360
U110	Water	4 – 10	110	6,7 – 18,5	7,7 – 16,3	64	2044 × 1394 × 1992	2750
U132	Air	4 – 10	132	6,7 – 22,2	7,7 – 19,9	67	3244 × 1394 × 1992	3360
U132	Water	4 – 10	132	6,7 – 22,2	7,7 – 19,9	66	2044 × 1394 × 1992	2750
U160	Air	4 – 10	160	6,7 – 23,9	7,7 – 23,6	70	3244 × 1394 × 1992	3360
U160	Water	4 – 10	160	6,7 – 23,9	7,7 – 23,6	69	2044 × 1394 × 1992	2750

CompAir Ultima – technical data

¹ Data measured and stated in accordance with ISO 1217, Edition 4, Annex C & Annex E within the following tolerances: inlet pressure 1 bar a, inlet temperature 20 °C, humidity 0% (dry).
² Free-field sound measurement in accordance with ISO 2151, tolerance ± 3 dB(A).

Frequently asked questions

What applications is the CompAir Ultima intended for?

For all areas where pure compressed air is required, for example food and beverage production, the pharmaceutical industry, electronics manufacturing, cleanrooms and medical technology.

What sets the Ultima apart from other two-stage compressors?

It has no gearbox. Each of the two compression stages is driven by its own variable-speed permanent magnet synchronous motor, and the controller regulates both speeds independently of each other.

What are the benefits of a drive without a gearbox?

Friction losses, oil requirements, noise and maintenance costs fall significantly.

How efficient is the Ultima at part load?

Because each stage is controlled individually, it achieves high efficiency even in the part-load range. The power requirement when idling is also significantly lower.

What sizes are available?

Five models from U75 to U160 with motor power from 75 to 160 kW. The flow rate ranges from 6.7 to 23.9 m³/min at 8 bar.

What pressure range does the Ultima operate in?

At an operating pressure of 4 to 10 bar.

Is the Ultima available air-cooled or water-cooled?

Both. Every model is available with air or water cooling.

How loud is the Ultima?

The sound pressure level at full load is between 63 and 70 dB(A), depending on the model and cooling.

How do I monitor the compressor?

Via the iConn IoT platform. It shows the data in real time, gives early warning of faults and enables condition-based maintenance, via web, app or dashboard.

Who can help me with sizing?

We do. We will advise you on which model suits your power, pressure and application. Call us or write to us.

Which compressor suits your application?

There are various compressor models, which differ considerably depending on output, pressure and field of application. Let us advise you to find the best model for your needs.