Gravity filling monoblock for PET bottles

It iis a mechanical gravity filling machine, for PET bottles, designed  for cold and hot filling of non-carbonated products


  • Reliable, simple and easily sanitized valve.
  • High production output.
  • Reduced changeover down-times
  • Valves made entirely of AISI 316 stainless steel
Stillfill S Evo

Stillfill S Evo gravity mechanical filler for still product

Process phases : main features and advantages

  • Central tank, with product feeding form the bottom of the rotating manifold.
  • Entirely stainless steel (grade 304) draining base.
  • Reliable, simple and easily sanitized valve.
  • Reduced changeover down-times.
  • "No bottle no fill",, no electronics in the machine.
  • PET bottle transfer - neck-handling - with no need for monoblock height adjustment.
  • Possibility of installing a level control system.
  • User friendly touch screen HMI, with menu-based interface
  • Sincro Bloc configuration available, for an integrated blowing- filling-capping solution.
  • Controlled contamination cabin, micro isolator and cap sterilizing unit available in option in order to enhance hygienic standards.

This is a modular project with the same features and advantages for both configurations, with the only difference between the S and HR configurations is a simple- hot-fill kit, including:
  • a pneumatic valve within the filling valves for product recirculation,
  • a rotating manifold for product recirculation,
  • an external tank for recovery of the recycled product and pumping back to the pasteurizer.

  • Centralized level adjustment, with only one intervention point
  • Universal product deflection without deflector (swirl device).
  • No dynamic gaskets in contact with the product: the shutter is sealed by a simple membrane, protecting the movement form contamination.
  • Simple to operate.
  • Evacuation to the outside of air returning from the bottles to prevent possible contamination.
  • Automatically engaged dummy bottles as option..
  • Valves made entirely of AISI 316 stainless steel.
  • Quick changeover for packages with different diameters.

Version HR
  • Possibility of managing pulp up to 3 mm in diameter and 10 mm in length.
  • Constant and controlled recirculation in bottle, regardless of the formats handled.

  • Extremely fast, simple and reliable mechanical valve., featuring "no bottle no fill" without any electronic.
  • In the HR variant the valve allows filling with products containing large pieces of pulp and fibre. Possibility of filling “to brim”.
  • The filling process has been designed to maintain the temperature of the whole circuit (valves, tanks, pipes) even in the event of long stops by means of product recirculation both in valve and in bottle.

  • No dynamic gaskets in contact with the product. Small number of static gaskets.
  • No wells or dead areas inside in order to prevent possible stagnation of product and increase efficiency of washing cycles.
  • The fixed valve with bottle lifting jack allows the use of the microbiologic isolator (ISO 7) to protect the filling valve area.
  • Sanitation cycle with the use of dummy bottles. Fitting and removal of these takes place in an extremely simple and functional way by means of a special bayonet connection to avoid direct contact between operator and valve, as an option, it is now available the automatic engagement of the dummy bottles.
  • Circuit preset for high temperature CIP.


Bottles form 0,125 to 3000 ml in PET or Glass


The filler is designed for filling PET bottles, but can also be configured to handle glass bottles.


Stillfill S Evo for cold filled non-carbonated water and clear juices.
Stillfill HR Evo for HOT FILL (up to 95 °C) and more generally for all non-carbonated beverages that require filling with recirculation


Fillers with from 20 to 140 valves
from 4,800 to 60,000 b/hour on 1.5 litres with still water.
from 4,700 to 36,000 b/hour on 1.5 litres with fruit juice


The main product you can fill are: non-carbonated mineral water, non-carbonated clear juices, non-carbonated juices with pulps and fibers, isotonic and sport drinks, RTD tea, milk and derivatives, alcoholic products

Case histories for this product