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Nett-Weigh filling machines

Filmatic Packaging Systems offers professional engineering services with regard to turnkey liquid packaging systems.

Rotary Nett-Weigh Filling

Bottles: 250ml – 5 000ml

Machine Model



N4 SERIES – FRW18-LS-B/N-N4 | FRW24-LS-B/N-N4 | FRW30-LS-B/N-N4


Selected where high value products are filled.

We make use of a pressurized supply system and a continually variable flow rate filling valve to achieve precision and high speed production capacity with low foam generation during filling. By utilizing star-wheels for transfer of the bottle between the different modular equipment, connected on the standard filler drive system that is driven by one drive, we thus eliminate additional drive components. Utilizing the same star wheel system, it also enables us to run more than one bottle size on the machine, effectively eliminating long changeover times due to the simplicity of the design.

With the newly designed filling valve the nett-weigh filler enable the clients to achieve a very precise filling weight, with 1 g accuracy, making it more cost effective by minimizing product waste.

The machine is equipped with a highly effective closed loop CIP system, cleaning the machine under immense pressure making sure that all product contact components are thoroughly cleaned.

Rotary filler benefits
  • Higher filling accuracy achieved by means of volumetric filling
  • Non-contact filling eliminate product contamination by transfer
  • Minimal moving parts in contact with product which makes it easy to sanitise with low maintenance and down time
  • Accommodate up to 3 different cap sizes and formats on 1 machine
  • Quick change overs between different bottle and cap sizes
  • Ease of operation

Gravity fed, level filling solutions

This filling system is the most widely used on Filmatic’s rotary fillers.  Containers are filled up to a preset filling level.  The level is set with the use of removable spacers.  The valves are highly suitable for single strength products such as water and juice, and handle foaming products such as milk with ease.  Recent developments on the level filling valves include a redesigned bellow that can be CIP’d without the need for disassembling the valve.  

Vacuum assisted, level filling solutions

This filling system is most often used for slightly viscous products such as edible oil.  A low level of vacuum is generated in the unfilled container, assisting the product to be sucked into the container.  This solution is limited to the used of rigid circular containers. 

Piston fillers

For more viscous products, and products with a solid content, the piston filler is a very viable filling system.  Pistons filling machines are volumetric filling systems, meaning that a set volume is discharged into the container during every cycle. 

Weigh fillers

Arguable the most accurate filling solution available.  This is also the most technologically advanced filling solution and as such the most expensive.  This system is often selected where high value product is filled.  Filmatic recently developed a weight filling system specifically aimed at filling foaming product such as milk at a production rate that compares favourably with the production rate of level filling solutions.  The newly developed system makes use of a pressurised supply system and a continually variable flowrate filling valve to achieve high production capacity with low foam generation.

Time filling

On the most basic Filmatic filler, time filling is used, where a valve is opened for a preset time.  This filling system is very accurate if the product is homogenous and consistent.  It is a lower cost solution but with a definite place in the entry level markets.


Filmatic has a rich history of 40 years supplying turnkey bottling equipment to a wide range of liquid consumer markets.



+27(0)21 862 2192

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