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MELTWOOD USA · IDEALTECH DRUM UNLOADERS

Drum Unloader Sizing Calculator

Estimate the adhesive melt rate, melting plate and gear pump size required for your highest-consumption production condition. Results are preliminary and should be validated by a MELTWOOD hot melt specialist.

Production data

Use actual maximum production values for the product with the highest adhesive consumption.

Select the container size before calculating the configuration.

Enter the maximum expected adhesive coat weight.

Two lines double the required melt rate. Pump displacement is calculated per line.

Leave at 1.00 when the actual density is unknown.

Alternating provides continuity. Simultaneous operation doubles melt capacity but does not preserve standby capacity.

Engineering basis. Adhesive demand per line is calculated from coat weight × web width × line speed. Total melt demand is multiplied by the selected number of production lines. Pump sizing is calculated per line at 70 rpm and the entered density, leaving additional operating-speed reserve. DR-20 automatic thresholds are Flat up to 9 kg/h, Ribbed up to 15 kg/h and Finned up to 17 kg/h; DR-20 is limited to one production line. DR-200 thresholds are Flat up to 35 kg/h, Ribbed up to 55 kg/h and Finned up to 80 kg/h. Tandem simultaneous operation doubles the applicable melt thresholds.

Request technical validation

Send the calculated production data to MELTWOOD USA. Our team will review the adhesive and application conditions before recommending a final configuration.

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