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Resin Dryer Working Inventory Estimate

Estimate the resin mass that must be available in a dryer hopper for a chosen feed rate and residence time.

Example starting values are prefilled to demonstrate the calculation. Replace them with your measured, quoted, or job-specific inputs before relying on a result.

Inputs

Inventory inputs

Range: at least 0.0 lb/h

Steady material consumption rate. Use actual or planned feed rate; do not substitute machine rated shot capacity.

Range: at least 0.0 h

Time the resin must remain available in the hopper under the resin supplier or dryer process specification. This is not residence time in the molding barrel.

Result

Required working resin inventory (lb)
75.00
Equipment-selection limitation
Working inventory equals throughput multiplied by stated residence time. Convert the mass requirement to hopper volume only after using the resin supplier or material handler bulk-density value; usable hopper volume, airflow, temperature, and dryer controls are outside this estimate.

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