Batch & Production Planning
Production Planning Calculator
This tool plans a monthly production target backward from the machine: given the fresh product goal for the month, the machine wet capacity and the average cycle duration, it estimates the number of batches, the machine hours those batches need, and the days of operation, with an optional count of freeze dryers running in parallel.
What This Tool Does
It derives the production workload from your monthly goal: how many batches the goal needs, how many machine-hours that is, and how many days of operation it implies with the dryer count you plan to run.
Use the same unit as the goal below.
Defaults to 1 machine; increase if you run several.
Batches Needed
–
Goal ÷ machine capacity
Batches per Machine
–
Total batches ÷ number of dryers
Estimated Machine Hours
–
Total batches × cycle duration
Estimated Days of Operation
–
Machine hours ÷ dryers ÷ 24, if running continuously
What the Result Means
Batches needed is the workload the goal implies: divide the monthly fresh target by what each batch can hold. If you run several dryers, split the batches across them. Machine hours is the total drying time the plan needs, and the days estimate shows what that means if the machines run around the clock. Days drop with more dryers, but real calendars include loading, checking, defrost and maintenance, so treat the day count as a lower bound.
The Formula
- Total Batches = Monthly Goal ÷ Machine Wet Capacity
- Batches per Machine = Total Batches ÷ Number of Dryers
- Machine Hours = Total Batches × Cycle Duration
- Days of Operation = Machine Hours ÷ Number of Dryers ÷ 24
Important Limitations
- Not all foods can be loaded to machine maximum: wet capacity is a physical limit, and many products need lighter loads to dry evenly.
- The day count assumes continuous, round-the-clock operation. Real schedules with loading and maintenance take longer.
- A fractional batch count (e.g. 37.4) cannot be run as-is: plan to round up to whole batches and schedule buffer time.
- Cycle duration is an average and changes with load, product and room conditions.