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The topside coater is designed with the coating roller and doctor roller arranged so a pool of adhesive is trapped between them. The adhesive can then flow lengthwise along the rolls to a collection point where it returns to an adhesive reservoir for recirculation to the rollers. Coating thickness is controlled by a dial adjustment of the gap between the rollers, allowing precise control of the adhesive coating.
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The topside coater can be equipped either with a dual feed roll system for thin parts, or with a single large diameter feed roll for thicker parts. The feed roll position is adjustable for gluing of different part thicknesses and drops away from the coating roller for machine cleanup.
For cleanup, water is pumped up to the coating roller and doctor roller interface by a separate wash-down pump, and wash-down water is collected in a separate reservoir.
The feed rate of the topside coater is 100 feet per minute, but the coater can be equipped with an optional DC drive for coating at other speeds, or match the machine speed to conveyerized feeds.
Typical uses for the topside coater are adhesive application to foam sheets, corrugated, chipboard, foam core board, and gasket material. The machine can also be used for the application of UV cured adhesive coating to metal and plastic parts.
Coaters Laminators
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