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What pump pressure should I use?

John McLeod

2 min read

Jun 25

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Our customers ask:

  • What pump pressure should I use?

  • How much glue should I apply?


There is no one size fits all answer here. It depends on the application.

The pump pressure controls how much adhesive is being put down.


A higher pressure uses more glue, a lower pressure uses less glue,

and saves more money.


How low can you go?


Experiment by turning the pump pressure down, doing test flap pulls along the way to confirm you are getting good bond strength and fibre tear. Once you find the minimum pressure that is bonding properly, turn up the pump pressure up 5 to 10%.


Graco InvisiPac has a G/Box read out so you can know exactly how much glue that is. Please note this as your Standard Operating Guideline. When JBX installs a new InvisiPac system we perform this test for you and apply a Glue Optimization label for easy reference.


InvisiPac can reduce glue consumption by 50 to 80%. It has a compact on-demand melter instead of a large tank of precooked glue. From glue pellet to glue on box in less than five minutes ensures it never gets charred. And fresh glue sticks a lot better. That's why you can turn down the pressure and use so much less!



"Squeeze Out"

Another reason to monitor your glue levels is Squeeze Out caused by excess glue applied before the flaps are compressed. There is nowhere for that extra glue to go but outside the bond area. Operators hate this as it causes messy build up on the rails and guides.


Watch your HMI

Check the G/ Box read out. Is it higher than the recommended target amount? If so, turn down the pump pressure to get back on target.

John McLeod

2 min read

Jun 25

0

0

0

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