ELC - Electro-pneumatic counter-pressure level filling system

ELC - Electro-pneumatic counter-pressure level filling system

ENOBERG’s ELC series is the ideal machine to bottle carbonated products, both in PET and in GLASS containers.

Suitable for filling products such as sparkling water, carbonated soft drinks and beer, it adopts innovative solutions. It is user-friendly and easily serviceable.

The heart of the machine is the electro-pneumatic filling valve (pneumatic valve propelled by electro-valve) for gravity level filling.

The electro-pneumatic valve, entirely designed by Enoberg, facilitates the automation of all the filling functions: pre-evacuation, bottle pressurization, filling, auto-leveling.

Equipped with a tank suitable to resist pressure up to 6 bar, ENOBERG’s ELC filling machine covers an extended production range, thanks to the configuration from 5 to 48 filling valves.

The beer version of the machine is configurable with a device intended to be used to perform an oxygen double pre-evacuation in the bottle before starting the filling phase; thanks to this optional device, the oxygen in the bottle is almost completely removed, in order to guarantee a longer shelf life to the beer, and to ensure its original taste.

Furthermore, the basic version is equipped with other technologically advanced solutions, such as:

  • 7" HMI (Human Machine Interface) touch screen, supplied by SMITEC;
  • Independent setting of each electro-pneumatic valve by means of HMI;
  • Independent movement of the machine axes through ICOS brushless motors with integrated control, in order to guarantee a perfect synchronism between the stars and low noise during the functioning;
  • Diagnosis of motor operating conditions through HMI;
  • Quick bottle changeover parts and pre-programmed recipes, enabling a quick changeover at a software level;
  • Dummy bottles to be positioned in a quick and easy way.

ENOBERG’s ELC machine can be fully cleaned thanks to the dummy bottles and to the piping system designed for recovering or recycling, depending on the needs, the washing solutions and for sanitizing the in- and counter-current flow.

Available in various sizes to cover an wide production range, ELC machines are supplied in filler/capper version and in rinser/filler/capper version.


Sparkling water (12°C-15°C)1.000 - 18.0000.5 lt
Beer (0°C - 5°C)1.000 - 9.5000.5 lt
Carbonated Soft Drinks (12°C - 15°C)1.000 - 18.0000.5 lt



Bottle capacity0.2 lt ÷ 3 lt
Production speed1.000 ÷ 18.000 bph
Fillinv valves5 ÷ 48
Available capsCrown caps, plastic screw cap, aluminum screw cap
Available bottlesPET - Glass
Available bottle Ø44 ÷ 125 mm
Available bottle height160 ÷ 340 mm
Bottle handlingNeck Handling - Bottom Handling
Operator pannelSMITEC Touch screen 7"
Filling temperature0 ÷ 20°C
Filling accuracty± 2 mm



The bottles are transported inside the machine through a conveyor belt. This device is an air conveyor in case of PET bottles, or a chain conveyor in case of glass bottles. The bottle flow is regulated using a pneumatically operated gate which, depending on the condition of plant production, enables or blocks the bottles transfer to the first star wheel.


Bottles coming from the conveyor are transported towards the rinser. This transfer is performed through a rotating star wheel which receives the bottles from the conveyor and transports them towards the rinsing carousel.


The bottle coming from the star wheel reaches the rinsing turret where a rubber gripper grabs the bottle neck, and by using a mechanical cam system inverts the bottle (180 degrees) in order to have the bottle lip aligned with its rinsing nozzle. The nozzle is activated, dispensing water or air depending on the filling product and on the customers preference. At the end of the rinsing phase, the bottle is inverted again, coming back to the initial position. The bottle is ready to be moved to the rinsing carousel. Each rinsing turret is equipped with a “no bottle-no spray" system: a sensor placed close to the rinser inlet detects the presence of the bottle. In the event that no bottle is detected, the correspondent turret will not perform any rinsing operation.


Bottles coming from the rinser are moved towards the filler. This transfer is performed through a rotating star wheel which collects the bottles from the rinsing turret and transports them towards the filling carousel.


The bottle coming from the transfer star reaches the filling station. The filling station is composed of an electro-pneumatic actuation valve. Once the bottle is correctly positioned, a pneumatic piston lifts it up towards the filling valve. When the bottle comes into contact with the valve, the filling phases start. During the first phase the bottle must reach the same pressure as the product tank, by means of CO2 injection. The bottle pressure allows the valve opening and leads to the second phase: the filling phase. The product is transferred from the tank to the bottle by gravity. A deflector installed on the valve diverts the product flow to the bottle walls, thus reducing foam during the filling. After reaching a certain level in the bottle, the product transfer stops. The filling valve is closed by an electro-pneumatic system and the bottle decompression phase starts. During the decompression phase, the bottle overpressure is discharged, so that the bottle can be dropped away from the valve without turbulences for the product. The bottle is now ready to be transferred to the capper. In case of beer, the bottle pressurizing phase is replaced by the double pre-evacuation of CO2. During this operation, air is evacuated and pressurized with CO2, then a second evacuation and pressurization occurs, thus minimizing CO2 presence in the bottle, in order to avoid the product oxydation.


Bottles coming from the filler are moved towards the capper. This transfer is performed through a rotating star wheel which collects the bottles form the filling turret and transports them towards the capping turret.


The bottle coming from the star wheel reaches the capping turret where a star shaped mould allows the bottle centering under the corresponding capping turret. In case of plastic screw caps and plastic pressure caps, the cap coming from caps feeding system is picked up by means of a star wheel called "pick and place". In case of aluminium screw caps, the cap is directly placed onto the bottle opening. Depending on the cap to be applied, it is possible to have rotating capping machines (for plastic screw caps), pressure capping machines (for plastic pressure caps or crown caps), or capping machine having threading heads (for aluminium screw caps). The rinsed, filled and capped bottle is ready to be moved to the outlet conveyor. Each capping turret is equipped with "no bottle-no cap" system: in the event that no bottle is detected under the capping turret, the cap will not be applied.


The rinsed, filled and capped bottles are moved out of the machine through a chain conveyor. In neck handling version, this conveyor is equipped with automatic height adjustment, which allows the bottle point of support to be tailored to the bottle height.



  • Modular structure which can be customized;
  • Compact filling module which minimizes the number of stars for bottle handling, while ensuring an easy access for maintenance and cleaning;
  • Modular framework which allows optimization of the shipping dimensions, cutting the transport costs and making the machine suitable for standard road transport;
  • Low operating and maintenance costs;
  • Low risk of contamination, high level of hygiene;
  • Excellent price performance ratio.

Standard accessories

Each ELC machine is provided with:

  • Independent movement of the machine axes through ICOS brushless motors with integrated control. Each motors parameter can be checked through HMI;
  • Guarding in tempered glass;
  • Installed dummy bottles cleaning in closed loop water circuits;
  • 7" HMI (Human Machine Interface) touch screen, supplied by SMITEC;
  • Pre-programmed recipes, to have a quick changeover at software level;
  • Quick bottle changeover parts;
  • Electro-pneumatic filling system;
  • Automatic setting of the machine carousels;
  • Possibility to fill both carbonated and flat products;
  • Automatic cleaning phases (CIP).


Available on request, it is possible to install on ENOBERG’s ELC machine:

  • Upper covering;
  • Laminar flow to create an overpressure in the working environment and to prevent penetration of micro foreign objects in the machine;
  • Components in contact with the products in AISI 316;
  • Modulating valve.

Optional for beer version

  • Vacuum generation system by means of liquid ring pump, performing an oxygen double pre-evacuation before the filling;
  • High-pressure hot water skimmer, in order to maintain a reduced oxygen pick-up.

* The stated values are not binding, as they have to be confirmed by ENOBERG according to the user's production conditions.