Suflante cu șurub KAESER KOMPRESSOREN SIGMA-Profile
Rotary Screw Blowers
CBS, DBS, EBS, FBS, GBS, HBS Series
With the world-renowned SIGMA PROFILE
Flow rate 3 to 160 m³/min, Pressure differential up to 1.1 bar
www.kaeser.com
CBS to HBS series
The rotors in KAESER KOMPRESSOREN’s new CBS,
DBS, EBS, FBS, GBS and HBS series rotary screw blowers are based on the world-renowned SIGMA PROFILE
and have been designed to meet the particular needs of
blower applications. So, just like their compressor counterparts, KAESER’s rotary screw blowers deliver more compressed air for less energy. The use of premium-quality
mechanical and electrical components ensures a powerful,
energy-efficient, state-of-the-art blower system that is
delivered ready for immediate connection.
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Long-term dependability
Renowned worldwide for the quality of their design, components and manufacture, KAESER products guarantee
long-term machine and process availability that you can
rely on. High-quality features include durable rotor bearings, a dependable power tran
smission, precision-dimensioned drive motors, torsion-free sound enclosures with
a cleverly designed cooling air flow, SIGMA CONTROL 2
machine controller for efficient and dependable operation
– and many more besides.
Efficient operation
Cool and quiet
KAESER rotary screw blowers consume significantly
less energy than conventional rotary lobe blowers and
also achieve significant savings in comparison with turbo
blowers. The combination of a blower airend featuring
energy-saving SIGMA PROFILE rotors, flow-optimised
components, efficient power transmission and high-efficiency drive motors ensures exceptional performance,
guaranteed by KAESER in accordance with the stringent
tolerances of ISO 1217.
KAESER rotary screw blowers also masterfully manage
the balancing act between best possible damping of structure-borne and fluid-borne noise and optimised cooling of
the blower airend, drive motor and intake air. In fact, the
reduction of fluid-borne noise – pulsations caused by the
com
pressed process air conveyed in the connected piping
– has been refined to perfection.
Compressed air at the push of a button
Guaranteed performance specifications
KAESER rotary screw blowers are user-friendly turnkey
systems, delivered ready for immediate operation. All that
is needed is to connect them to a power supply and the
air network. The arduous processes of oil-filling, drive belt
installation, motor adjustment, procurement of a suitable
frequency converter, programming, cabling in accordance
with EMC regulations, drawing circuit diagrams, arranging
CE and EMC certification, etc. are thankfully consigned to
the past.
To ensure that the projected savings are actually achieved
during operation, KAESER quotes effective overall power
consumption figures, as well as the usable flow rate, in
accordance with the stringent tolerances of ISO 1217,
Annexe C or E (as applicable).
Procuring complete, certified machines from systems
manufacturers ultimately saves you both time and
money,
whilst guaranteeing many years of reliable operation.
Super Premium Efficiency motors
KAESER rotary screw blowers with flange motors are now
equipped with Super Premium Efficiency motors (IE4 and
IES2), which stand out for their high energy-saving potential thanks to extremely high levels of efficiency. Saving
money has never been so easy!
1217:2009
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CBS, DBS, EBS, FBS, HBS series
Pure efficiency with the SIGMA PROFILE
Developed in the early 1970s, KAESER’s SIGMA PROFILE rotor technology revolutionised rotary screw compressor energy
efficiency. Continually refined ever since at KAESER’s Research and Development Centres in Coburg and Gera, this high-efficiency compressor technology is now available for use in blower systems as well.
Blower airend with SIGMA PROFILE
Dependable seals
KAESER’s high-efficiency blower airends combine a wide
control range with near-constant specific package input
power. Equipped with energy-efficient SIGMA PROFILE
rotors, they ensu
re maximum air delivery whilst keeping
power consumption to an absolute minimum.
Field-proven in KAESER rotary screw compressors, the
sliding ring seal for the rotary transmission drive shaft
lead-through on the blower airend housing is completely
maintenance-free and guarantees dependable sealing
performance, even in hot or dusty environments.
Durable bearings
Continuous system monitoring
Four robust cylinder roller bearings absorb 100% of the
radial forces, thereby ensuring a long service life for the
airend. The rolling elements are encased in high-tech
cages for optimum lubrication at all speeds.
Sensors for oil level and temperature monitoring are
integrated into the blower airend. The inside of the oil
chamber is designed to ensure these continue to function
whilst the machine is operating – even with fluctuating oil
levels. Clever cooling design means KAESER rotary screw
blowers require minimal oil.
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CBS to HBS series
Direct drive – Ultimate efficiency
In CBS to G
BS series rotary screw blowers, power is
transferred from the motor to the blower airend via a lossless and maintenance-free gear transmission. This has
proven to be the best solution for the prevailing speeds in
this performance and size class when it comes to efficiency, reliability and durability.
With HBS series blowers, power is transferred directly
without loss via a coupling. These concepts were the
result of extensive research at KAESER’s Research and
Development Centres.
The transmission ratio can be varied using different sets of
timing gears, so that for example, the motor can be used
at all times within the optimum frequency range of the
SFC’s variable speed control, or in the case of fixed-speed
operation, flow rate can be matched to actual demand.
Moreover, the combination of low lateral forces on the motor shaft and low-speed operation helps to ensure a long
service life for the motor bearings.
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Electric motor
Airend with
SIGMA PROFILE
SIGMA B blower airend
Prov
iding exceptional efficiency and optimum reliability, the
airend does not require any auxiliary equipment, such as
an oil or vacuum pump, or an oil cooler.
CBS to GBS series from 7.5 to 110 kW
Pure efficiency with synchronous
reluctance motors
High-efficiency synchronous reluctance motor
High-performance frequency converter
As a slip-free motor, this design combines all the benefits
of high-efficiency permanent-magnet motors with those
of robust, maintenance-friendly asynchronous motors. No
aluminium, copper or expensive rare-earth magnets are
used for the rotors. Instead, they are constructed from
electrical steel with a specialised profile and arranged in
series. This makes the drive highly durable and easy to
service.
The Siemens frequency converter uses a control algorithm that is specifically adapted to the motor. With the
perfectly matched combination of frequency converter
and synchronous reluctance motor, KAESER achieves the
highest possible system efficiency class of IE
S2 as per
IEC 61800-9-2.
Low magnetic
resistance
High magnetic
resistance
How the reluctance motor works
High efficiency in partial load operation
In a synchronous reluctance motor, the torque is generated by magnetic reluctance forces. The rotor features
salient poles and is made of a soft magnetic material, such
as electrical steel, which is highly permeable to magnetic
fields.
Synchronous reluctance motors achieve significantly higher efficiency in the partial load range than asynchronous
motors. This helps achieve savings of up to 10% compared with conventional variable-speed systems.
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CBS to HBS series
Efficient and dependable
The blower airend plays a key role in ensuring outstanding energy efficiency. It achieves this in combination with carefully
matched components and the advanced SIGMA CONTROL 2 blower controller.
0.014bar
0.014bar
107.8m /min
Lauf: 2h
66% 0.482bar
15 C 3003rpm 68 C
Wartung in: 2997h
The blower controller
Comprehensive sensors
The SIGMA CONT
ROL 2 ensures efficient blower control
and system monitoring at all times. A readout display, RFID
reader and numerous interfaces enable fast and reliable
communication, whilst the SD card slot makes data storage
and software updates a breeze. In the event of a failure of
the master control system, the blower will switch automatically to individual operation and can be controlled manually
– ensuring a continued supply of quality compressed air for
the applicable process.
A wide range of sensors and switches for monitoring
pressure, temperature, speed, oil level and filters ensures
dependable operation of the blower, whilst allowing remote
monitoring and visualisation of operating status.
Specific package input power (kW/m³/min)
Conventional
speed control
Efficient
SFC variable speed control
Flow rate (m³/min)
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Cool intake air
Optimised specific package input power
Process air and cooling air for the motor are drawn in
separately from outside the sound enclosure. This boos
ts
efficiency and leads to a higher usable mass flow rate for
the same power consumption. The blowers can operate in
ambient temperatures up to +45°C.
The moderate maximum speed, an extra-dense screw
profile and near-constant specific package input power
across a wide, variable-speed control range all combine
to achieve significant energy savings across the entire
operating curve.
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CBS to HBS series
Plug-and-play
KAESER rotary screw blowers are delivered as turnkey complete machines, which saves operators a time-consuming and
cost-intensive installation procedure.
Moreover, they are supplied ex-works ready for integration into Industrie 4.0 applications.
START CONTROL (STC)
SIGMA FREQUENCY CONTROL (SFC)
The version with integrated star-delta starter for constant-speed operation is equipped with a premium contactor, overcurrent relay and phase monitoring. A SIGMA
CONTROL 2 controller and dependable emergency stop
system complete the package (not available with HBS).
Usi
ng variable speed control, the SFC frequency converter
adjusts flow rate to match the actual air demand of the process application. Everything is delivered ready for immediate operation, since all programming and parametrisation
is carried out at the factory.
Plug-and-play
EMC-certified complete system
These turnkey blowers are delivered complete with all sensors, STC/SFC, SIGMA CONTROL 2 and an emergency
stop switch, are ready-filled with oil and are fully certified.
This significantly reduces the work and costs required for
planning, installation, certification, documentation and
commissioning.
It goes without saying that the SFC control cabinet and
SIGMA CONTROL 2 are tested and certified for electromagnetic compatibility, both as individual components and
as complete blower systems, in accordance with EMC
Directive EN 55011 for Class A1 industrial power supplies.
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CBS to HBS series
A new standard for the low pressure segment
KAESER’s innovative CBS, DBS, EBS and FBS ser
ies rotary screw blowers not only impress with their energy-saving drive
concept, but also with their well thought-out and compact design, which allows all maintenance work to be performed from
the front. Side-by-side installation is possible even with all electrical equipment. Since they provide even more power, the
larger GBS and HBS machines require more installation space. A certain minimum clearance distance is therefore required
to ensure sufficient service accessibility.
DBS footprint
only 1.65 m²
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Outstandingly compact
Side-by-side installation
Comprising a blower airend with drive motor, loss-free
power transmission, silencers, sensors, controller and
electrical equipment such as frequency converter or
star-delta starter, this compact powerhouse features a
footprint of just 1.65 m² (DBS), whilst the fully automated
75 kW EBS blower model boasts a footprint of only 2.5 m².
The package layout of CBS to FBS series rotary screw
blowers has been designed to allow all mai
ntenance work
to be performed from the front of the unit. These compact
blowers can therefore be installed side-by-side without the
need for any additional work.
Flow-optimised
Even quieter
All relevant components, including on the intake side, are
flow-optimised to minimise pressure losses. Silencers, air
filters and non-return flaps also help us to stay true to our
motto of providing “More compressed air for less energy”.
Highly effective sound damping not only minimises machine noise via the sound enclosure; special absorption
silencers also help significantly to reduce fluid-borne noise
transmitted through the piping – a characteristic commonly
associated with speed-controlled blowers.
More compressed air for less energy
Image: EBS 410 CM SFC
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Image: Four HBS 1600 M SFC units with SAM 4.0 station controller in a clarification plant
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Equipment
Super Premium Efficiency motors
Pulsation dampers
Super Premium Efficiency IE4 motor from Siemens with
IES2 sys
tem efficiency, three PTC thermistors or Pt100 as
standard; variable-speed drive models matched to SFC
frequency converter. Quick, safe maintenance thanks to
easy-access, central lubrication points for motors with
regreasable bearings.
Efficient inlet- and discharge-side absorption silencers with
wide frequency range to mitigate unwanted process air pulsations; excellent damping of fluid-borne noise transmitted
through piping. Discharge-free and long-lasting.
SIGMA CONTROL 2
Create a LAN connection between PC and SIGMA CONTROL 2 via the Ethernet interface; launch Internet browser;
enter SIGMA CONTROL 2 IP address and input password:
access blower controller via the integrated web server. User
interface displays machine status in real-time and signals
at the analogue and digital inputs, lists warning and alarm
messages and graphically displays pressure, temperature
and speed trends. (See image below)
“Traffic light” LED indicators show operating status at
a glance, plain text di
splay, 30 selectable languages,
soft-touch keys with icons, fully automatic monitoring and
control. Interfaces: Ethernet; additional optional communication modules for Profibus DP, Modbus RTU and / TCP,
Profinet IO, EtherNet/IP and DeviceNet. RFID card reader,
web server, KAESER CONNECT user interface, visualisation of signals at analogue and digital inputs, warning and
alarm messages, graphical display of pressure, temperature and speed trends. SD card reader for storage of
process data, operating hours, working hours, warning and
alarm messages. Updates via SD card.
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KAESER CONNECT
Master/Slave operation
Two identical/different blowers connected via Ethernet;
automatic changeover for standby/ready with operating
hours balancing; control of two blowers possible by use of
adjustable switching range.
Further optimisation
SIGMA AIR MANAGER 4.0
The SIGMA CONTROL 2 internal compressor / blower controller and the SIGMA AIR MANAGER 4.0 master controller provide more than just optimis
ed blower air system efficiency. Thanks to their high level of data integration and multiple interface
options, they can be easily integrated into advanced production, building management and energy management systems, as
well as Industrie 4.0 application environments.
Optimum conditions
Heat recovery
Cooler
Carefully matched peripheral components, such as weather protection
screens, supplementary fans and
sound dampers in the inlet and outlet ducting, help maintain a pleasant
working environment.
Heat exchangers can cool the
process air significantly, even at high
ambient temperatures. The heat
gained can therefore be utilised for
the purposes of space heating and/
or water heating, thereby considerably reducing primary energy costs.
With minimal differential pressure,
the economical ACA-type air/air aftercooler uses a temperature switch
to limit the blower air temperature
reliably to 10 Kelvin above ambient.
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Layout
01)
SIGMA CONTROL 2 controller
02)
STC or SFC control
cabinet
03)
Intake silencer with filter
04)
Blower airend with SIGMA PROFILE
05)
IE4/IES2 – Super Premium Efficiency motor
06)
Discharge silencer
07)
Pressure valve
08)
Unloaded-start valve (optional)
09)
Non-return flap (optional)
10)
Compensator
11)
Sound enclosure fan
Views
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CBS
DBS
EBS
FBS
GBS
HBS
Technical specifications
Model
*)
Max.
flow
rate *)
Pressure
Vacuum
Max. rated
motor power
Pipe connection
Dimensions with
control cabinet
WxDxH
Max.
weight
m³/min
Max.
pressure
differential
mbar
Max.
pressure
differential
mbar
kW
DN
mm
kg
CBS 121 L SFC
12.6
700
–
18.5
CBS 121 M SFC
10.3
1100
550
22
CBS 121 L STC
12.5
700
80
1110 x 1370 x 1670
750
CBS 121 M STC
10.2
1100
DBS 221 L SFC
23
700
–
30
DBS 221 M SFC
22
1100
550
37
DBS 221 L STC
19
700
100
1110 x 1480 x 1670
850
DBS 221 M STC
18
1100
EBS 410 CL SFC
41
700
–
EBS 410 CM SFC
30
1000
550
1280 x 1760 x 1820
1400
EBS 410 L SFC
41
7
00
55
EBS 410 M SFC
40
1100
75
1460 x 1760 x 1970
1520
EBS 410 CL STC
38
700
EBS 410 CM STC
30
1000
1280 x 1760 x 1820
1400
EBS 410 L STC
40
700
55
EBS 410 M STC
40
1100
75
1460 x 1760 x 1970
1520
FBS 720 L SFC
72.5
700
–
90
FBS 720 M SFC
71.5
1100
550
110
FBS 720 L STC
71.5
700
200
1460 x 2330 x 1970
2200
FBS 720 M STC
71.5
1100
GBS 1050 L SFC
105.1
700
–
132
GBS 1050 M SFC
104.3
1100
550
160
GBS 1050 L STC
104.1
700
250
1870 x 2700 x 2260
4100
GBS 1050 M STC
103.3
1100
HBS 1600 L SFC
160
700
550
200
HBS 1600 M SFC
160
1100
–
250
300
2070 x 3720 x 2230
6000
18.5
–
22
22
–
37
37
150
–
37
75
–
75
132
–
160
Performance specifications as per ISO 1217 Annexe C for STC version, Annexe E for SFC version
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The world is our home
As one of the world’s largest manufacturers of
compressors, blowers and compressed air systems,
KAESER KOMPRESSOREN is represented throughout
the world by a compre
hensive network of wholly owned
subsidiaries and authorised distribution partners in over
140 countries.
By offering innovative, efficient and reliable products and
services, KAESER KOMPRESSOREN’s experienced
consultants and engineers work in close partnership
with customers to enhance their competitive edge
and to develop progressive system concepts that
continuously push the boundaries of performance and
technology. Moreover, decades of knowledge and expertise
from this industry-leading systems provider are made
available to each and every customer via the KAESER
group’s advanced global IT network.
KAESER KOMPRESSOREN SE
P.O. Box 2143 – 96410 Coburg – GERMANY – Tel +49 9561 640-0 – Fax +49 9561 640-130
E-mail: productinfo@kaeser.com – www.kaeser.com
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P-970ED Specifications subject to change without notice. .4/22
These advantages, coupled with KAESER’s worldwide
service organisation, ensure that every product operates at
the peak of its performance at all times,
providing optimal
efficiency and maximum availability.
providing optimal
efficiency and maximum availability.
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