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Basic Guide to Liquid Filling machine

When beginning your liquid filling equipment search, it is important to consider the different aspects of
your product (or application) and the demands of your project.  There are four characteristics that will
help in determining the type of filling machine you will need:    the liquid’s nature or characteristics, fill
volume(s), production rate(s), and container description(s).


Nature of the Product

The first question that you will need to answer about the nature of a product is the product’s viscosity.
You can describe the viscosity by using the terms water-thin, semi-viscous, or viscous.     Those products
that are free-flowing, or have a consistency of water, would be considered water-thin opposed to thick
substances such as hair gel, oils, and pastes that are considered viscous.    Below is a chart with some
examples of products and their viscosity.


Filling Techniques

The product’s nature will determine the correct pump to use in your filling machine as well as the filling
technique that should be used.     For example, does your product tend to be foamy?  Does it contain
particulate matter?  Does it contain an ingredient (such as alcohol or acetone) that is flammable?  The
different characteristics of products require different filling techniques.

Bottom-Up Filling:  Used for foamy products, or to reduce splashing, nozzles are lowered to the bottom
of the container before filling and then rise just above the liquid as the container is being filled.

Static Filling:  This filling technique is typically used for filling machines with no nozzle movement.     Many semi-automatic filling machines use this type of filling.

Profile Filling:  Using servo-motor technology allows you to vary the speed of the filling process inside the container.   For instance, if your product requires you to fill at a fast speed for the first half of the fill and then slow down for the second half of the fill it can do so.

Flammable/Hazardous Material Filling: Any product that is flammable or hazardous (i.e. defined as those liquids with a flashpoint of 100°F or less) needs to be filled using an intrinsically-safe machine. Intrinsically-safe machines are built with a remote, intrinsically safe control system or are completely air operated (no electricity required), to assure that the filling process is safe for those working nearby.

Hot Fill:  This technique is used with products that must be heated and filled at elevated temperatures. Some products such as sauces, condiments, and food ingredients may need to maintain an elevated temperature during the filling process in order to assure a sanitary environment of the closed container; others like deodorants, candles, lipstick, and mascara use the hot fill technique since the product is either too thick or a solid at room temperature, and therefore, unable to flow through the pumps.


Fill Volume and Container Description

The nature of the container also has an impact on certain elements of thefilling machine that you will
need.   The more information you can give about the container the better, such as:

 Is it made of glass, plastic, etc?

What is the shape of the container?  Is it stable when placed on a moving conveyor?

 What is the fill volume?   (Give the minimum and maximum volumes)

 What is the size of the container?  (Give dimensions or drawings if possible)

What is the size of the opening of the container?

What type of closure will be used:  screw cap, pump/spray, rubber stopper?


About YuFeng

we specialize in this field for several years.

ZhangJiaGang City YuFeng Beverage machinery Co.,Ltd.