Becker SV 400/1 5.50 kW Side Channel Blower
The Becker SV 400/1 5.50 kW is the highest-powered standard fixed-speed configuration in the SV 400/1 family, combining 390 m³/h nominal airflow with particularly strong positive-pressure performance.
At 50 Hz the blower is rated to -315 mbar relative vacuum and +425 mbar positive pressure. At 60 Hz the corresponding 6.60 kW motor increases nominal volume flow to 470 m³/h, with maximum vacuum of -340 mbar and maximum positive pressure of +410 mbar.
The +425 mbar 50 Hz pressure capability distinguishes this version from the smaller SV 400/1 motor configurations and makes it particularly relevant where the blower must push air against substantial system resistance.
Becker SV side channel blower supply and technical support from Vacuum Pumps UK.
Need an SV 400/1 5.50 kW?
Send us the Becker nameplate or tell us the airflow, vacuum or positive-pressure duty required by your system.
Our team can help confirm the correct blower configuration.
Blower Type
Single Stage
side channel blower
Nominal Capacity
390 m³/h
at 50 Hz
Maximum Vacuum
-315 mbar
relative at 50 Hz
Maximum Pressure
+425 mbar
relative at 50 Hz
Motor Power
5.50 kW
50 Hz motor
Strong Pressure Performance from the SV 400/1
The 5.50 kW SV 400/1 is especially notable for its positive-pressure capability. While nominal airflow remains 390 m³/h at 50 Hz, the larger motor enables operation to +425 mbar relative pressure.
This makes the blower well suited to applications where air must be driven through restrictive pipework, process equipment or pneumatic conveying systems. The additional motor power provides the capability to overcome greater resistance without changing the basic nominal flow of the SV 400/1 platform.
On vacuum duty the 50 Hz maximum remains -315 mbar, while the 60 Hz configuration is rated to -340 mbar. This illustrates why the vacuum and pressure characteristics should both be checked rather than assuming that a larger motor produces the same proportional increase on each side of the performance curve.
The SV 400/1 uses non-contact turbo-dynamic compression. A rotating impeller transfers energy into the airflow as it passes through the side channel, avoiding rubbing compression components and lubricating oil within the air chamber.
For replacement or application selection, the complete motor data and intended operating duty should therefore be considered alongside the SV 400/1 model designation.
Becker SV 400/1 5.50 kW Technical Specifications
The 60 Hz version uses a 6.60 kW motor and provides 470 m³/h nominal flow. Maximum vacuum rises to -340 mbar while maximum positive pressure is +410 mbar.
| Frequency | Nominal Capacity | Maximum Vacuum | Maximum Pressure | Motor Power | Weight |
| 50 Hz | 390 m³/h | -315 mbar | +425 mbar | 5.50 kW | 54.5 kg |
| 60 Hz | 470 m³/h | -340 mbar | +410 mbar | 6.60 kW | 54.5 kg |
Vacuum and pressure figures are relative. Weight includes motor.
Key Features of the SV 400/1 5.50 kW
+425 mbar Pressure
Strong 50 Hz positive-pressure capability makes this version particularly relevant to blast-air, conveying and restrictive process applications.
Industrial Vacuum Capability
Provides maximum relative vacuum of -315 mbar at 50 Hz and -340 mbar at 60 Hz for suction-side applications.
Oil-Free Airflow
No lubricating oil is required in the compression chamber, helping protect applications requiring clean process air.
Non-Contact Compression
The impeller produces the required differential aerodynamically without rubbing compression components in the air path.
Integrated Silencers
Inlet and discharge silencers are incorporated into the blower construction to help control operating sound.
Sealed Bearing Design
Sealed bearings eliminate routine bearing greasing and support the low-maintenance side channel design.
Applications Requiring Greater Pressure Differential
The 5.50 kW configuration is particularly valuable where the connected process places substantial resistance on the blower or requires stronger positive-pressure performance.
› Vacuum lifting and holding
› Vacuum fixing systems
› Printing and paper machinery
› Packaging and processing equipment
› Automated material handling
› Pneumatic conveying
› Blast-air systems
› Drying processes
› Aeration and process air
› General industrial engineering
SV 400/1 5.50 kW Supply and Application Support
Vacuum Pumps UK can assist with the supply of Becker SV 400/1 5.50 kW blowers for machinery replacement, maintenance requirements and new industrial projects.
For an existing installation, provide the complete blower and motor nameplate. This ensures the 5.50 kW version is correctly distinguished from the lower-powered configurations that share the SV 400/1 designation and 390 m³/h nominal 50 Hz flow.
For a new duty, tell us the required airflow and normal operating vacuum or pressure. On higher-pressure applications in particular, pipework diameter, filters, valves and process restrictions can have a significant effect on the blower operating point.
Accessories for Higher-Differential SV 400/1 Installations
When an SV 400/1 is operating against a substantial pressure differential, filtration, airflow and relief protection become particularly important. Correct accessories can help keep the blower within its intended operating limits if system conditions change.
Inlet Filters
Correctly sized filters help protect the impeller and side channel while avoiding unnecessary restriction to the airflow.
Vacuum Relief Valves
Vacuum relief can admit additional air if suction restriction causes the inlet differential to rise beyond the intended duty.
Pressure Relief Valves
Pressure relief is especially relevant on higher-pressure systems where blocked or closed pipework could cause excessive discharge differential.
Installation Components
Flexible connectors, non-return valves, silencers and correctly sized pipework components can be incorporated into the complete installation.
Becker SV 400/1 5.50 kW Service, Repair and Spare Parts
The side channel principle provides a relatively simple, non-contact air compression mechanism, but reliable blower operation still depends on the bearings, motor and the condition of the surrounding installation.
On higher-pressure applications, excessive restriction can increase blower load and operating temperature. Dirty filters, obstructed pipework, closed valves or incorrectly set relief equipment can therefore affect both performance and reliability.
If an SV 400/1 becomes noisy, develops vibration, runs unusually hot or no longer produces the expected airflow or differential, Vacuum Pumps UK can help investigate both the blower and the likely system causes.
Blower Service
Technical support for maintenance, system checks and performance issues affecting Becker SV side channel blowers.
Blower Repair
Workshop inspection and repair assessment for damaged, noisy or under-performing units, including motor and bearing faults.
Spare Parts
Replacement filters and Becker spare parts are available through our sister company VacAir Superstore.
Becker SV 400/1 5.50 kW Frequently Asked Questions
What airflow does the Becker SV 400/1 5.50 kW provide?
Nominal capacity is 390 m³/h at 50 Hz and 470 m³/h at 60 Hz.
What maximum vacuum can it achieve?
Maximum relative vacuum is -315 mbar at 50 Hz and -340 mbar at 60 Hz.
What is the maximum positive pressure?
The blower is rated to +425 mbar at 50 Hz and +410 mbar at 60 Hz.
How does the 5.50 kW version differ from the 4.00 kW SV 400/1?
The main difference at 50 Hz is positive-pressure capability. The 4.00 kW version is rated to +290 mbar, whereas the 5.50 kW configuration reaches +425 mbar.
Does the bigger motor also increase nominal airflow?
No. All three standard SV 400/1 motor configurations have a nominal 50 Hz capacity of 390 m³/h. The larger motor principally changes the allowable operating differential.
Is the SV 400/1 5.50 kW oil-free?
Yes. The compression chamber operates without lubricating oil.
Should I run the blower continuously at its maximum pressure?
The maximum figure is an operating limit rather than a substitute for selecting the correct duty point. The required airflow at the normal system pressure should be checked when specifying the blower.
Can Vacuum Pumps UK help identify or repair an SV 400/1?
Yes. Send us the blower and motor nameplates and we can assist with identification, supply, servicing or workshop repair.
Need a Becker SV 400/1 5.50 kW Side Channel Blower?
Contact Vacuum Pumps UK for technical advice, blower supply, accessories, servicing and repair.
Send us the existing blower nameplate or the airflow and operating differential required by your application.
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