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By means of innovative hot-melt dosing system InvisiPac Tank-Free by Graco®, your packaging line can work without any production downtime. You will say good-bye to daily maintenance due to char, no more char-filled hoses, no more tank scraping, no more wasted time waiting for your hot melt tank to heat up.

Using Graco InvisiPac it’s possible reaching the operating temperature and running production in less than 10 minutes. It’s engineered with a Tank-Free design: adhesive spends less time to get the right melting temperature, significantly reducing char and its negative side effects. You get great performance, even from low cost adhesives.

How it works
Graco’s InvisiPac uses an integrated vacuum system to feed adhesive pellets to an in-line melt chamber. A sensor monitors adhesive in the chamber, and additional pellets are automatically added as needed based on the demand of your application.

With its efficient heat transfer design, the InvisiPac System has adhesive throughput capability equivalent to or better than many hot melt tank systems. The result? You get a continuous flow of adhesive during production that significantly reduces the time adhesive sits at temperature. Less time at high temperature means less char, less maintenance and more uptime.

The strong points of this great innovation in the packaging sector, which has significantly changed the way to melt and glue, can be summarized as follows:

• Tank-free system (Tank-free™)
• Minimizing adhesive melting 
• Less adhesive time at high temperature 
• Pellets are automatically added as needed 
• High quality and performances heated hoses
• Innovative System with free-flow path

Customer’s benefits are more productivity, energy saving, less running costs and traceability of adhesive’s quantity used.

You can find all detailed information opening the PDF brochure here below.