A removable adhesive wand can be fed directly from containers to the hot-melt unit.
A vibrator installed on the wand keeps the adhesive flowing freely.
Automatic adhesive fill systems offer many manufacturing
benefits, including reduced labor and raw-material costs. In addition, the
expanded holding capacity of an adhesive storage container increases operating
efficiency and decreases the time between adhesive container refilling.
Automatic feed systems also eliminate the need to manually fill adhesive tank
hoppers, freeing operators to perform other tasks. When using a bulk feed
system such as ITW Dynatec’s ADS1 DynafillTM
removable adhesive wand can be fed directly from large bulk containers supplied
by adhesive manufacturers to the hot-melt unit.
The Dynafill system continuously monitors the adhesive levels in hot-melt
system hoppers; without the use of bulk-feed systems, operators must constantly
monitor hopper levels by manually opening the lid and looking at the current
volume. This process introduces many variables into the manufacturing process,
such as labor costs to monitor and fill the hopper, failure to fill the hopper,
and even the chance of spillage or thermal shock to the adhesive. With an
automatic feed system, adhesive levels and temperatures remain steady,
providing less risk of char and other degradation. The ADS1 is a closed,
positive-pressure system that virtually eliminates contaminants that lead to
char and nozzle clogging by reducing adhesives’ exposure to the environment.
Thus, fewer replacement parts are required and downtime and maintenance are
Purchasing adhesive in larger quantities for a bulk-feed system can mean volume
discounting. In addition, the system can reduce power consumption, decrease
adhesive degradation and waste, and reduce scrap. A safer work environment is
also achieved, as operator exposure to molten adhesive when refilling the
equipment’s hopper tank is eliminated. The ADS1 features a positive-pressure,
self-contained design that minimizes contamination, resulting in improved
performance and reduced equipment downtime.
The ADS1 Dynafill can be installed out of the box with simple plug-and-play
components. The unit’s control box is attached to the lid assembly, which
eliminates the need for separate mounting and saves time and money. The lid
assembly is sized to drop into most hot-melt adhesive hoppers and can easily be
moved to other hot-melt units. With 120 or 240 Vac standard electrical
configurations, the ADS1 requires little to no wiring.
ADS1 Dynafill system.
Using an Automated Filling System
Operating on 20 cfm at 50 psi air pressure when feeding, the
Dynafill automatically draws and transfers adhesive to the tank hopper when the
level falls to a pre-set minimum. Even low levels of adhesive are drawn through
a suction wand immersed in the adhesive bin and delivered under
positive-pressure to the tank hopper, ensuring little to no waste. A vibrator
installed on the wand keeps the adhesive flowing freely. A capacity sensor
immersed in the adhesive tank’s hopper responds to a low level pre-set by
transmitting a signal to the DynaFill system to draw adhesive through the wand
and deposit it in the hopper. When the hopper reaches the pre-set maximum
adhesive level, the sensor discontinues the signal to the system and adhesive
transfer is stopped.
The DynaFill system can feed a hot-melt unit from up to 20 feet vertically and up
to 100 feet horizontally, accommodating adhesive sizes up to a half-inch slat.
The flexibility of locating the ADS1 up to 100 feet away from the hot-melt
equipment allows for additional floor space considerations.
Other features and benefits include:
- Reduced power consumption.The ADS1
limits the need to open the hot-melt machine’s reservoir lid during the filling
operation, an action normally required during manual feeding of a hot-melt
system. Frequently opening the lid allows heat to escape, which then requires
the hot-melt system to cycle for additional heating. The ADS1 contains and
maintains the heat within the hot-melt system and reduces the need for
additional heating cycles.
- Reduced thermal shock. In a manually fed
hot-melt system, the unit can go unattended and the adhesive level can run low
within the system. This process is inefficient and leads to wasted energy and
heat. When the tank is refilled after running too low, it can shock the
hot-melt system into overshooting the need for heat. The ADS1 eliminates the
risk of allowing the system to run low; an efficient level is constantly
maintained in the hot-melt system.
- Reduced adhesive waste. The ADS1
provides an enclosed system that virtually eliminates adhesive spills and
waste. During manual feeding of a hot-melt system, adhesive is occasionally
spilled onto the floor or overflows from the adhesive reservoir. With the ADS1,
the adhesive level is properly maintained at all times to eliminate overfill.
The metal lid fits securely and prevents adhesive from spilling onto the floor
- Reduced product waste. Most hot-melt
systems have ongoing issues with filter and nozzle clogging, due to
contaminants and adhesive char. When nozzles clog, the production line must be
stopped and improperly sealed product scrapped. The ADS1’s enclosed system
keeps contaminants in the work environment from entering into the hot-melt
system. Common contaminants include fiber, paper particulate, and miscellaneous
objects such as screws and other work-related materials.
- Safety. Splash back while filling a
hot-melt reservoir is one of the main causes of operator adhesive burns. Since
the ADS1 takes the operator out of the process of filling the reservoir, the
potential for splash back and burns is reduced. In addition, there is less
operator exposure to harmful fumes.
- Floor space requirements. The ADS1 can
accommodate adhesive transfer up to 100 feet away. This allows the system to be
positioned in an area that has easy filling and maintenance access. In a
manual-filling process, 50 lb. boxes are commonly lifted into place so the
operator can scoop adhesive to fill the hot-melt system. In some cases, the
operator must use a ladder to reach the hot-melt system for filling. The ADS1
bulk-feed system eliminates the use of adhesive boxes and the need to scoop and
climb to fill the hot-melt system. The ADS1 system offers an optional caster
base that allows operators to simply move drums to the loading area when they
need to be refilled from a bulk container.
- Cleanliness. In industrial areas,
materials that can cause tripping or slipping must be kept off the floor. Since
the ADS1 is an enclosed system, it avoids the waste and safety hazard of
spilled adhesive onto the floor and work areas around the hot-melt system.
Detail of the ADS1 Dynafill system.
adhesive fill systems offer several manufacturing benefits, including reduced
labor and raw material costs, greater holding capacity, and increased operating
For more information, visit www.itwdynatec.com or phone (800) 966-6358.