Central systems with a promise of success

VARIAIR Central System (VACS)

Central systems with a promise of success

The VARIAIR Central System (VACS) from Becker provides a compact solution for supplying air to one or more production systems. This method of supplying suction and blast air supply is employed in a wide range of different places. 

Whether in small businesses or for specific stages of production in large companies, the energy-saving VARIAIR Central System delivers suction and blast air that’s matched to demand. VACS ideally complements subsequent finishing operations in printing shops equipped with the VARIAIR System (VAS), e.g. on assembling, folding and inserting machines, etc.


VACS cuts noise in the work environment and reduces operating personnel exposure to high temperatures through the absence of direct heat sources. This is where VACS offers the major advantage of Becker’s modular control system VACON. It manages as many as four different pressure levels with no more than seven pump units each. The VARIAIR Central System obviates the need for additional pump rooms. Affording a high degree of flexibility, VACS uses short connection lines and costs little to install. All connected equipment is provided with a built-in frequency converter.

VACS is based on four different basic units with a wide range of accessories integrated in a cabinet. Of the modular design, these cabinets can be extended at any time to ensure flexibility in accommodating growing production requirements.



VARIAIR Direct Screw (VADS)VARIAIR Direct Screw (VADS)

VADS is the first direct-drive dry-running screw. With integrated speed controlling for demand-oriented applications and no need for a drive transmission, VADS is truly a Becker innovation!

This unit is able to fulfil the highest requirements for a wide range of applications. By entering the load and output into your customer system, the air supply system automatically and directly adapts to the given requirements. The frequency-controlled drive unit offers a wide control range with optimised demand matching. In addition to energy savings and higher efficiency, this also results in lower maintenance requirements. The non-contact, oil-free screw unit ensures high air flows with low pulsation and lends itself to “master/slave” operation. Integrated accessories include a non-return valve, intake filter, sound absorbers and ventilation/bleed system. An air blast cooler is also available.

The high-tech internal “workings” are reflected by the compact, modern design. All of the system components are integrated in an attractively designed, ready-to-use hood.


  • Vacuum pump or compressor
  • Direct-drive, no transmission required (see below)
  • 100% oil-free compression
  • 100% contact-free and non-wearing compression
  • Integrated frequency converter
  • Continuous output controlling
  • Small oil circuit for synchronisation transmission
  • Operating/ error messages shown in the display


  • Compact unit, integrated accessories
  • Low noise levels
  • Lower maintenance requirements
  • Pulsation-free air vacuum and blast air
  • High degree of efficiency, low energy requirements
  • Modern design

The spindle principle

Since 2012 Becker offers in addition to the successful VADS 1500 the smaller version VADS 250 as a vacuum pump with a spindle profile.

Another innovative Becker product, providing following advantages:

  • Operates under a rough and fine vacuum level
  • Large suction flow even at a high vacuum level
  • Continous operation down to 1x 10-2 mbar
  • VARIAIR Technology
  • Integrated frequency inverter
  • Air cooled
  • Quick, simple installation and commissioning
  • High efficiency
  • Wear-free, dry compression
  • Low operating cost



Centralised SystemsCentralised Systems

Becker provides intelligent pneumatic solutions for one or several production machines.

In central pneumatic systems, multiple single pumps on separate production machines are replaced by just a few larger vacuum pumps and/or compressors in a separate room (control room, basement etc.). The units are connected to the production machines via pipes.


Central pneumatic systems provide your machines with on-demand vacuum and blast air, which means energy savings. Noise levels are drastically reduced in employee work areas.

Each pneumatic supply in a centralised system is equipped with its own frequency converter. Thus, the pneumatic requirements of each production machine can be continuously adapted for any given operating point. By average, frequency-controlled units operate at a relative speed of approx. 65%. Overall, this leads to significant energy savings over separate units and devices without speed controlling.

Our central pneumatic systems are always optimised for your specific requirements. Each system is designed and configured especially for the requirements of the given application.


No heat or noise emission in the production area
In production facilities, workplaces are being subjected to ever more stringent noise and heat emission regulations. In centralised pneumatic systems, there is no longer a need for separate vacuum pumps and compressors. Employees are subjected to minimum levels of heat, noise and oil mist.

Lower energy requirements for air conditioning systems

Eliminating the many separate pumps leads to a significant reduction in convection heat. Thus, air conditioning systems are subjected to lower loads and consume less energy. By removing the exhaust outlets (and the accompanying oil mist) from the production area, the air quality is greatly improved in the production area.

Energy savings using VACON controller
The central systems are controlled using the VACON controller. The VACON controller monitors and controls up to 4 different pressure or vacuum levels.

Central maintenance area
In centralised pneumatic systems, you can inspect and service the pneumatic supplies at a single location. It is much easier to access and inspect these units than to having to travel to each single supply unit for this purpose.

Lower maintenance requirements 
Plants without a centralised pneumatic supply system typically have multiple vacuum pumps and compressors from multiple manufacturers in production. The many different replacements and wear parts required for each separate system results in drastically increased logistics and becomes expensive for the plant operator. Generally speaking, vacuum pumps and compressors in centralised pneumatic systems are low maintenance and utilise many of the same parts and materials. This restricts the range of required parts to an absolute minimum.


Vacuum SystemsVacuum Systems

Whenever a certain vacuum needs to be provided, vacuum systems from Becker are employed.

Systems for a continuous provisioning generally contain one or several vacuum pumps mounted on a vessel. This includes in the scope of delivery, in addition to connection hoses, also pressure switches, filters, vacuum meters and non-return flaps or valves.


PumpstandThe vacuum pumps to be used can be oil-free (VT 4.10 – VTLF 2.250) as well as oil-lubricated (U 4.20 – U 4.250) units. This makes it possible to achieve a vacuum of 90 % or otherwise 99.5 %. Side-channel vacuum pumps can also be employed for a lesser vacuum. Vessels are available in the sizes 90, 250, 500, 1000 and 2000 litre in horizontal versions. Upon request, they can be hot-dip galvanised inside and out.

For the automatic regulation of the vacuum level, the systems, which may also consist of a different number of vacuum pumps, can additionally be equipped with a control cabinet. It includes a transformer for power supply of the pressure switch, time relay, On-switch, main switch, operation and fault indicator as well as operating hours counter.

All systems have been designed so flexible that they can be equipped with additional accessories such as separators, ball valves, and so forth without a problem.

Beyond even larger oil-lubricated vacuum pumps, 2000 litre vessels can be used with centralised systems. In this case, pumps and vessel are set up separately.

Pumpstand (Zentralanlage)

example: 5x U 4.400, 2000L vessel + control cabinet

MedizinrackMedizinrack 2If vacuum provisioning has already been arranged for or is not required, the pumps may also be consolidated in a space-saving rack system. For instance, a medicine rack can be equipped with 3 oil-free vacuum pumps of the VTLF series (or KVT), secretion separators and control cabinet.

This way the highly flexible Becker vacuum system can always be optimally integrated with the customer application!