Air-cooled high-pressure compressors in the I-series (air & nitrogen) in the pressure range 90 – 525 bar

K 22 – K 28 Series – Powerful compressor units for demanding applications

BAUER I 25 / I 28 Super-Silent (sound-insulated), high-pressure compressor

BAUER I 25 / I 28 high-pressure compressor

BAUER I 23 Super-Silent high-pressure compressor – interior view

Very easy to maintain: Thanks to proven BAUER system components

Cost-efficient: Low installation overhead combined with cost-effective operation

Designed for demanding operating conditions: With optimum free air delivery rates and a variety of drive power ratings

Comprehensive assurance of spare parts supply: With the global BAUER Service and Support network

Whether they're found in standard compressed-gas applications in industry or built into vehicles for mobile use: The air-cooled high-pressure compressor units in the K 22 – K 28 series are reliable, durable and the solution of choice for demanding customers.

Outstanding ease of maintenance is just as much a matter of course for us as the wide range of possible applications – optimally matched to your specific needs.

The units of the new K 22 series are designed with direct coupling, while the units K 23 – K 28 are driven by means of V-belts.

In line with your individual needs and industrial requirements, BAUER KOMPRESSOREN can also provide you with tailor-made turnkey system solutions.

All the information you need at your fingertips!

B-CONTROL MICRO compressor control
The B-CONTROL MICRO is a modern, easy-to-use compressor control with colour display for the control and reliable monitoring of all basic functions. Read more

The system concept
The compressor units are equipped with vibration dampers and allow installation without foundations. Read more

Compressor block
The standard block series is air-cooled and designed for demanding industrial applications. Read more

Super-Silent cladding
Super-Silent cladding reduces the noise level of the compressor unit and enables an exhaust shaft to be used.

B-CONTROL III
B-CONTROL III is BAUER's premium control system for demanding applications. Read More

Explosion protection conforming to ATEX guidelines
Compressor units by BAUER KOMPRESSOREN can be supplied with explosion protection and conforming to ATEX directives.

Colour range
Customer-specific paint finishes in other colours or special composition paints (conforming to corrosivity category C5M, for example) are available alongside the standard BAUER paint finishes.

Start-up configuration
At and above motor power ratings of 75 kW and in conjunction with the B-CONTROL, a soft starter to protect the unit during starting and effectively reduce starting current is used as standard. The technical alternative is soft staring with a frequency inverter. Read more

Monitoring of intermediate pressures and temperatures

Monitoring of pressure and temperature
This add-on module for the B-CONTROL control monitors the pressures and temperatures of all compressor stages. Read more

Intake system
The intake system supplies the compressor with air or gas at a suitable and monitored intake pressure. Read more

Intake pressure reduction
IIntake pressure reduction ensures that the compressor takes in the gas at the appropriate pressure. The level of intake pressure reduction is adjusted according to prevailing gas pressure and required intake pressure. Integrated safety valves and pressure monitoring effectively ensure that intake pressure does not fall below or above the permissible level.

Intake buffer vessel
To effectively prevent pulsations in the intake area, an intake buffer vessel is installed between the compressor and the upstream gas supply networks and/or control equipment. Read more

60-litre condensate vessel
The generous 60 l condensate collection system provides a central collection point for the condensate produced during the compression process inside the compressor. Read more

Treatment systems
BAUER treatment systems for highly compressed air and gases reduce content such as moisture, oil and particles to a permissible level. Read more

Storage systems
Modular high-pressure storage systems by BAUER KOMPRESSOREN are the ideal way to expand a compressor system. Read more

Scope of delivery, basic version
Complete compressor unit ready for operation. Read more

I-series air-cooled 90 – 525 bar
Type designation	Effective free air delivery ¹			Max. operating pressure ²		Number of compressor stages	Speed approx.	Motor output	Net weight approx.
	l/min	m³/h	cfm	bar	psig		rpm	kW	kg	lbs
High-pressure compressor K 22 – K 28, 900 – 3500 l/min, 90 – 365 bar
I 22.0-22	900	54	31.8	365	5300	4	985	22	710	1565
I 22.0-30	1300	78	45.9	365	5300	4	1485	30	780	1715
I 23.0-37	1480	89	52	350	5000	4	1400	37	780	1715
I 25.0-45	1900	114	67	350	5000	4	1180	45	1750	3850
I 28.0-55	2500	150	88	350	5000	4	830	55	1860	4090
I 28.0-75	3500	210	125	350	5000	4	1180	75	1950	4290
High-pressure compressor K 22 – K 28, 900 – 1300 l/min, 350 – 450 bar
I 22.0-22	900	54	31.8	450	6525	4	985	22	710	1565
I 22.0-37	1300	78	45.9	450	6525	4	1485	37	830	1830
High-pressure compressor K 22 – K 28, 1300 – 2300 l/min, 420 – 525 bar
I 22.5-30	1300	78	45.9	525	7600	5	1480	30	850	1875
I 25.9-45	1900	114	67	500	7200	5	1180	45	1900	4180
I 25.18-55	2300	138	81	500	7200	5	1100	55	1950	4290

60 Hz
Type designation	Effective free air delivery ¹			Max. operating pressure ²		Number of compressor stages	Speed approx.	Motor output	Net weight approx.
	l/min	m³/h	cfm	bar	psig		rpm	kW	kg	lbs
High-pressure compressor K 22 – K 28, 920 – 1300 l/min, 90 – 450 bar – 60 Hz
I 22.2-22	870	52.5	30.7	450	6525	4	1180	22	710	1565
I 22.2-37	1300	76.8	45.2	450	6525	4	1770	37	830	1830
High-pressure compressor K 22 – K 28, 980 l/min, 420 – 525 bar – 60 Hz
I 22.5-30	980	58.8	34.6	525	7600	5	1170	30	780	1720

¹ Free air delivery according to ISO 1217, power consumption at maximum final pressure under certain conditions. Other ambient conditions result in different performance data.
² Max. operating pressure = max. safety valve pressure setting; reduced switch-off pressure.