
K-25/28 INDUSTRIAL COMPRESSOR RANGE
FOR AIR AND NITROGEN
K 28 compressor block
Companies that rely on absolute operating
safety and investment security in their inspection or production processes have confidence in
60 years of BAUER-experience in High-Pressure
Systems Technology.
Whatever application you want to realize with medium or high pressure air or nitrogen, we support you
in every respect.
Our service includes project planning, installation of
complete turn-key systems, certifications of all kinds
and, of course, a reliable after sales service as well
as a guaranteed spare parts supply for decades worldwide.

Air-cooled compressor block
with force-feed lubrication,
interstage and after coolers,
interstage separators after each
stage, final oil and water sepa-
rator.
Final pressure safety valve,
pressure maintaining and check
valve.
Cycle counter to register the
load cycles in the oil and water
separator.
Automatic condensate drain
device with unloaded start and
condensate collecting system 40 l.
V-belt driven 3phase motor
(400/690V, 50 Hz; other voltages
upon request).
All components mounted on
a common base frame with
shock absorbers for free-stan-
ding installation.
Fully automatic and programma-
ble compressor control B-CON-
TROL extended.
Gas intake line is required if
nitrogen is supposed to be com-
pressed.**
**consisting of: particle filter, non-retun/solenoid valve, sensors for intake pressure monitoringmin./max.
Ease of maintenance, best
access and user friendliness
are all integral to the machine
design.
BAUER compressor units are
delivered to the customer
completely tested and ready
for operation.
Optional:
The Super Silent Version inclu-
des a noise abating closed
cabinet.
The B-MESSENGER transfers
information from the B-CON-
TROL to the customer.
Extensive
standard scope of supply

Parameters monitored by B-CONTROL:
- Pressure: interstage pressures of all stages / final pressure / oil pressure.
- Temperature: temperature of all stages / cooling air temperature
- Drive: motor overcurrent
- Service: maintenance intervals
- Condensate drain: control of condensate drain valves with cycle counter for final separator
Many industrial processes
require remote monitoring and
fully automatic operation.
The BAUER B-CONTROL with
clear display controls the
compressor, the motor as well
as the automatic condensate
drain.
Pressure and temperature
monitoring of each stage
ensure maximum operating
safety.
Compressor operation can be
regulated via integrated final
pressure sensors in the storage
cylinders.
The big 8-line LCD-display
with free choice of languages *
informs the operator at any
time about all important para-
meters such as oil pressure,
final temperature and maintenance work due.
*actually 7 languages available
An
optional
CAN-Bus-interfa-
ce allows interconnected operation of several units, remote
online-monitoring and inte-
gration in higher-ranking control systems.
The B-MESSENGER (optional)
informs the operator via SMS
on the mobile phone or pager
or e-mail about all relevant
compressor data, e.g. forthco-
ming maintenance work or filter
changes.
The BAUER B-Control ( PLC con-
trol ) allows free programming
acc. to customer´s requirements.
Total
Control
with B-CONTROL

IK 25-28-E 3.05 3 St subject to technical modifications
BAUER KOMPRESSOREN GmbH
P.O.BOX 710260 .D-81452 MÜNCHEN
DRYGALSKI-ALLEE 37 . D-81477 MÜNCHEN
PHONE 0049 89 78049-0
FAX 0049 89 78049-167
Internet: www.bauer-kompressoren.de
e-mail: info@bauer-kompressoren.de
1) measured with flow meter at 0,8 factor of final pressure (±5%)
F.A.D.
1)
Model
(nitrogen
version)
Model
(air version)
Speed
Drive
Net weight
open version
Net weight
Super Silent
version
scfm rpm
kW
approx. kg approx. kg
3 stage, 350 -500 psig, 74 -240 scfm
3-stage, 910 - 1100 psig, 71 - 117 scfm
3-stage, 440 -900 psig, 85 -240 scfm
4-stage, 1100 - 1300 psig, 57 - 117 scfm
4-stage, 1300 - 5000 psig, 67 - 124 scfm
5-stage, 5000 - 7200 psig, 67 - 81 scfm
A 25.4 - 30
A 25.4 - 37
A 28.2 - 45
A 25.5 - 55
A 25.5 - 75
A 28.3 - 90
B 25.4 - 37
B 25.4 - 45
B 28.2 - 55
B 25.5 - 75
B 28.3 - 90
B 28.3 - 100
E 25.4 - 37
E 25.4 - 45
E 28.2 - 55
E 25.0 - 30
E 25.0 - 37
E 28.0 - 45
E 28.0 - 55
I 25.0 - 45
I 28.0 - 55
I 28.0 - 75
I 25.9 - 45
I 25.18 - 55
AGI 25.4 - 30
AGI 25.4 - 37
AGI 28.2 - 45
AGI 25.5 - 55
AGI 25.5 - 75
AGI 28.3 - 90
BGI 25.4 - 37
BGI 25.4 - 45
BGI 28.2 - 55
BGI 25.5 - 75
BGI 28.3 - 90
BGI 28.3 - 100
EGI 25.4 - 37
EGI 25.4 - 45
EGI 28.2 - 55
EGI 25.0 - 30
EGI 25.0 - 37
EGI 28.0 - 45
EGI 28.0 - 55
GI 25.0 - 45
GI 28.0 - 55
GI 28.0 - 75
GI 25.9 - 45
GI 25.18 - 55
74
99
120
148
194
240
85
101
120
166
208
240
71
92
117
57
71
88
117
67
88
124
67
81
940
1200
1050
940
1200
1050
1070
1270
1050
1050
940
1050
940
1200
1050
1000
1250
800
1050
1180
830
1180
1180
1100
30
37
45
55
75
90
37
45
55
75
90
110
37
45
55
30
37
45
55
45
55
75
45
55
1360
1430
1400
1900
2060
2160
1430
1460
1500
2060
2160
2330
1430
1460
1500
1650
1720
1780
1860
1750
1860
1950
1900
1950
1860
1930
1900
2400
2560
2660
1930
1960
2000
2560
2660
2850
1930
1960
2000
2150
2220
2280
2360
2250
2350
2450
2400
2450
TECHNICAL DATA
Open: length width height
dimensions in mm: 3020 1300 1525
SUPER SILENT: length width height
dimensions in mm: 3020 1300 1525