800-235-8090

800-235-8090
sales@keystoneparts.com

Friday, March 27, 2015

Char Buildup in Glue Melter


What are the causes of char in glue melters and what can you do to reduce the buildup?

Wouldn't it be nice to reduce the pesky char that clogs your nozzles and shuts down a production line.  Sounds easy, right?!?

There are many variables that can attribute to this issue.  Make some observations of your production lines based on the list of Challenges below.  If you have any of these challenges below, you are prone to have glue melter clogging issues, which means possible expensive downtime.
Challenge

Impact  
    
Solution   
Dry adhesive are stored in open container.
Contaminants fall into the container which may end up in the glue melter.
Store dry adhesives in a sealed container with a scoop used only for that container
Challenge

Impact  
    
Solution     
Glue melter is not filled with fresh adhesive until almost empty.
Surface areas of glue tank that are exposed to air will burn and char.
Coach line operators to keep glue tank 1/2 to 3/4 full of adhesive.  If needed, attach a light or sound device to a level sensor in glue tank to notify line operator to fill glue tank. Add a sealed dry adhesive feeder, which, not only, provides a clean environment, but also increases safeness for filling glue tank
Challenge

Impact  
    





Solution    
Glue melter is not in use and is running at operating temperatures.
Continuous heating of adhesive at operating temperatures can compromise adhesive viability.  Any areas of the tank exposed to air for many hours can form char from residual adhesive burning.
Program a setback temperature for periods when melter is not in use or turn off..  Program start up 40 minutes prior to line start up.  
Challenge

Impact  
    







Solution    
Glue Melter lid is either missing or open all the time.
Contaminants in the air can enter the adhesive in the  tank causing clogs.  Some contaminants can burn and cause char when mixing with the adhesive.  An example would be box dust, product dust (flour/sugar), product packaging       from above (bottom caps/pop tabs), etc.
Verify lids are present and closed, except during filling. Coach staff.
Challenge

Impact  
    


Solution  
Tank filters and inline filters are not changed often.  
Collection of a large amount of debris on filters will eventually cause clogging due to pieces of debris breaking off and bypassing filter.
Add changing filters to your Preventive Maintenance schedule. There is very little expense and this will prevent costly downtime.  Depending on hours of use of the glue melter, add flushing the glue melter to your PM schedule. This will extend the life of your glue melter.


Let us know if you need help with determining a PM schedule on the glue melters and if you need parts.

Angela Wagley
sales@keystoneparts.com
800-235-8080

Tuesday, March 24, 2015

Reduce Glue Nozzle Clogging


Are you having consistent issues with nozzles clogging on your glue applicators?

Verify your inline and tank filters are clean.  A little time in preventive maintenance will go a long way in preventing unplanned and costly downtime.  Over time contaminants will form in the adhesive tank and hose, break off and flow to the applicator heads.  Both the tank filter and the inline filters can catch most of the debris and reduce clogging of the nozzles.

Tank Filters for Nordson

KNTF104 - Mdl VII/IX
KNTF106 - Mdl 2000/2200
KNTF130 - Mdl IV//XIV
KNTF578 - Mdl 2300/300
KNFH0226 - Mdl ProBlue 4/7/10 & DuraBlue 10/16


For a variety of inline filters click here

Remember for inline filters, the smaller number mesh size means less restriction. Generally, you want more restrictive mesh on smaller diameter nozzle orifices and less restrictive on larger size nozzle orifices.  If unsure which filter mesh size you need, please call us and we can assist.

Don't be the one who cost your company thousands of dollars in downtime by neglecting to change glue melter filters!!!!

Angela Wagley
sales@keystoneparts.com
800-235-8090