Matching the Right Hot Melt Adhesive System to Your Case/Carton Sealing and Tray Forming Operations Published by: Nordson Corporation

Hot Melt Adhesive Dispensing Systems for Packaging The deposition of thermoplastic (hot melt) adhesives is the preferred method for carton sealing, case sealing, tray forming and a host of other packaging applications. All hot melt adhesive systems employ a melting device to transform solid adhesive in pellet, pastille, pillow, block, slat or other form, to a liquid state required for dispensing. They also contain a pump, which pressurizes the molten adhesive. While sometimes called a tank, unit, system or applicator, the most globally recognized term is adhesive melter. A heated transfer hose...

Electronic temperature controls within the melter compare the temperature of the adhesive in different areas or zones to the temperature setting and activate tank heaters as needed, before the adhesive cools. To help assure the bonding characteristics of your adhesive and the quality of your packages, melters with temperature control stability of +/- 1 º F (0.5 º C) are highly recommended. Determine the amount of adhesive per product, per production hour and per day by calculating: • Number of adhesive beads per product • Length of each bead • Bead diameter(s) • Number of packages you want to...

Electric Gerotor Pumps A gerotor (short for generated-rotor) pump operates using a larger outer gear ring and a smaller inner gear that has one less tooth than the outer gear. The inner and outer gears both rotate in a clockwise direction but, on different, fixed centerlines. As the gears rotate, the spaces between the teeth change, creating pockets or chambers. The rotating gears create a partial vacuum as the gear teeth come apart/un-mesh, drawing adhesive into the inlet side of the pump, between the gears and the housing. The adhesive is carried in the spaces between the gear teeth, around...

• emote monitoring ranging from one operator controlling a single R melter – to Fieldbus connectivity (EtherNet/IP, PROFIBUS-DP, DeviceNet) where programming and monitoring of several melters on multiple production lines in different geographic locations is done from a single location • even-day-clocks that provide significant energy savings through S automatic start up and automatic shut down when the melter is not in use • emperature setback that delivers adhesive cost, maintenance T and energy savings by lowering the melter temperature when the packaging line is stopped, maximizing adhesive...

Nordson Corporation 11475 Lakefield Drive Duluth, GA 30097 (800) 683-2314 www.nordson.com/hotmelt © 2012 Nordson Corporation All Rights Reserved PKL-12-5738 Printed in U.S.A.