HRLF - Recirculation filling system

HRLF - Recirculation filling system

The filling machines of the renewed HRLF series, manufactured according to the new HYPER CLEAN characteristics, are suitable for the LEVEL filling of FLAT products in PET and GLASS bottles.

HRLF fillers are characterized by:

  • Fully mechanical filling valve for gravity level filling;
  • Possibility of filling flat products, both clear and foamy;
  • Possibility of filling a large number of flat products, such as vinegar, juice, sauces and liqueur;
  • Valve that allows the product recirculation: the excess foam formed during the filling can be evacuated out of the bottle. The excess product is collected in a tank outside the machine, ready to be refilled;
  • High reliability on filling levels;
  • Filling system suitable for working in HOT FILL with temperature control and product recycling.

The machine is complete, in the basic version, also with the following features:

  • 7” HMI (15” HMI available as an optional);
  • Parameters of each format to be directly managed through HMI;
  • Quick changeover of the bottle guide equipment;
  • Compact frame for space saving in the filling line and reduced transport costs;
  • Dummy bottles included in the price of the machine, with manual positioning.

Available in various sizes to cover a wide range of production, the machines of the HRLF series are available either in the filler/capper version or in the rinser/filler/capper one.



SPEED (bph)



1.000 – 21.300

0.5 lt

Frothy juice

1.000 – 17.600

0.5 lt


1.000 – 18.900

1 lt



Bottles capacity

0.2 lt ÷ 2 lt

Production speed

1.000 ÷ 30.000 bph

Filling valves

5 ÷ 50

Workable caps

Plastic screw cap – ROPP cap

Workable bottle diameter

44  ÷120 mm

Workable bottle height

160 ÷ 340 mm

Bottle handling

Neck Handling – Bottom Handling

Operator panel

 Touch screen 7"




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 starwheel reaches the filling turret. The filling technology is based on mechanical opening and closing of the valve. Once the bottle is in position in the filling turret, it is moved towards the filling valve by a pneumatic piston. The valve is opened thanks to the contact and the pressure of the bottle on it. The filling process begins. The product is transfered by gravity from the tank to the bottle. Once the filling phase is completed, the product is recirculated through a suitable circuit and it is collected in an external tank. The product recirculation continues until the closure of the valve. In case of hot filling, there is a continuous product recirculation even if the valve is closed. The valve is mechanically closed: it rises and it comes back to its initial position. The filled bottle is ready to be moved to the capper.


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.



  • 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 RLF 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;
  • 7" HMI (Human Machine Interface) touch screen, supplied by SMITEC;
  • Quick bottle changeover parts;
  • Gravity level filling system;
  • Electrical regulation of the carousels height;
  • Regulation of the filling levels by means of spacers;
  • Automatic cleaning phases (CIP);
  • Product recirculation.


Available on request, it is possible to install on ENOBERG’s RLF 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 product in AISI 316 steel;
  • Kit for Hot Filling with product recirculation.

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