An important element of any dispensing application is choosing the best static mixer.  Choosing a static mixer is more than just looking online at a catalog.  Adhesive manufacturers and users will need to investigate many variables when evaluating mixer characteristics for specific applications.  These are some factors to take into consideration when choosing a static mixer to properly mix a 2-component adhesive.

What is a Static Mixer?

A static mixer, which is also referred to as a motionless mixer, is a simple device with no moving parts and consists of a series of elements within piping or tubing.  The process-steam flow offers the necessary energy to complete the mixing process.  It effectively mixes 2 flowable liquids in what can be a complicated process.  As it forces adhesive components through the mixer, they are repeatedly divided and recombined, thus creating a complete uniform mixture.

They frequently choose static mixer systems when users encounter too many difficulties with conventional adhesive handling systems.  Utilizing a static mixer provides many benefits, including consistency of mix and eliminating the introduction of air into the mixing.  Air represents a source of voids in cured bond lines and the possibility of a bonding failure.

Flow rate is a key factor to consider when choosing between static mixers.  The user must calculate the amount of pressure necessary to keep the two liquids flowing at the appropriate rate for a specific application.  An example is with high viscosity components, it may require a significant force to move the liquids at a proper flow rate.

Each specific application frequently represents a simple decision for adhesive manufacturers and end-users because flow rate, volume, production, and relate requirements often dictate the choice.

Reliability

Reliability in adhesive operations is paramount.  Every operation needs to have consistent results.  Static mixers give consistent results, there are important variables that can affect its performance.  Temperature and humidity can have a significant impact on the chemical and physical reactions and processes.  Therefore, static mixers testing is under various climatic conditions.

Physical Aspects

They physical aspect of a static mixer, such as the number of elements or special attachments, should be analyzed and tested.  Each of these physical dimensions can affect the success of the adhesive operation.

Testing and Experimenting

We should view testing or experimenting as a reliable process to help choose the right static mixer.  This decision will determine the success of adhesive manufacturers and end-users’ applications.

Adhesive manufacturers might chart work-life, gel and curing times for various adhesives.  They then distribute this data to end-users with disclaimers outlining chemical properties and operating limits based on specific applications of the adhesives, and the conditions under which they dispense.  And end-user can then take the specifications to test various dispensing systems under operating conditions, such as varying temperature or humidity, or with different lengths or special attachments.

Komax Unique Triple Action Static Mixer   

The Komax process uses a unique triple action mixing process that is highly efficient in a static mixer.  Depending on your needs, it can be customized.  You choose the line size, pressure drop, and the number of elements. Select from two, three, or four elements to meet your needs.  You can also choose the configurations.  Contact Komax to help you design the perfect static mixer for your 2-component adhesive.