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The DYNAMELT PUR Adhesive Supply Units are available in automatic purge system (APS) models. These models are used with (PUR), reactive hot melt polyurethane adhesives.
Polyurethane adhesives produce an extremely strong bond. They may be used for structural purposes or for laminates, carpet bonding, etc. They contain no solvents making them environmentally desirable.
When processing PUR adhesives, all moisture must be removed from the adhesive supply unit’s hopper. The Dynamelt S APS Models automatically supply super dry air and reduce the dew point in its hopper to -45°C after the adhesive is introduced which then removes moisture using purge cycles. This reduces the relative humidity to 0.6%.
The APS adhesive supply units are outfitted with special pneumatic controls, including a desiccant filter, vacuum generator and a membrane air dryer. The adhesive supply unit’s sealed lid and heavy-duty clamping lid handle assure a moisture-tight closure.
The APS models utilize a lower factory setting for the over-temperature thermostat and special DynaControl controller software (V.5APS). A level control and a 4.5cc single gear pump are part of the standard APS package.
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- Options Include:
- Analog Pressure Gauge
- Memory Card Reader
- Seven-Day Scheduler
- Signal Isolator For Line-Speed Tracking
- System Status Lights
- Bulk System Integration for Automatic Adhesive Filling and Continuous Production
- Choice of Single and Dual Output Gear Pumps.
The APS adhesive supply unit can accommodate air-actuated automatic applicators, hand-held applicators and special applicators.
CAUTION: Because of the nature of PUR adhesives to strongly bond in the presence of moisture, care must be taken to prevent them from curing in the adhesive supply unit’s hopper. If the PUR adhesive solidifies in the hopper, the hopper must be replaced. For this reason, while you are refilling the hopper, keep the hopper lid securely closed. Automatic tank filling is a beneficial option in high capacity applications.
Always purge old PUR adhesive from the adhesive supply unit system per your adhesive manufacturer’s instructions and timetable.
a selection from our products...
The ITW Dynamelt System provides accurate, proportionate temperature control for the hopper, hoses and applicators. Sequential heating delays may be programmed for turn-on of the hoses and heads. A ?standby? temperature may be programmed so that the temperature zones can be maintained at a lower temperature when the ASU is not in active use, enabling rapid return to normal operation.
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Ideal for low to medium viscosity materialsDouble the power for high melt rate needsAllows accurate temperature control of four zones (standard). Up to eight heat zones with an optional four-zone expansion boxTandem capabilities with other Therm-O-Flow Mini-5'sFeatures President 15:1 and two-ball lower
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Designed to handle hot melt adhesives and sealants of all viscosities and abrasiveness, the Therm-O-Flow� Hot Melt Systems out performs the competition time after time. They easily integrate into any system, require little maintenance and are one of the most durable bulk hot melt drum unloaders on the market. With melt rates that are at least 60 percent higher than the leading competitor. The best performing industrial bulk melt systems on the market. Therm-O-Flow�s advanced temperature control virtually eliminates overshoot of temperature, resulting in better adhesive quality and reduced rework due to damaged material. Kirkco offers a complete line of Therm-O-Flow bulk melt systems � each configured to fit your specific application.
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