Application
Automated Sack Emptying in Pharmaceutical Plants
Answer in brief
In pharmaceutical production the sack emptying station is judged by a containment figure and a cleaning validation, not by its throughput.
The machine has to be cleanable to a documented standard and provide measured containment for the compound band.
- Start from the exposure band.
- Require measured containment data.
- Design the cleaning validation before installation.
Reviewed October 21, 2026 · Updated October 21, 2026
The problem
Excipients arrive in sacks and actives sometimes do too, and the opening step is an exposure event that manual methods cannot control.
Desired outcome
A station with demonstrated containment performance, a validated cleaning procedure and a sieve inside the same closed boundary.
Process approach
Enclosed cutting with extraction, interlocked access and a sealed discharge give the containment; the figure is measured rather than described.
A sieve after the station catches sack fragments and agglomerates, and in a contained line it sits inside the same boundary.
Cleaning validation covers the cutting mechanism, the enclosure and the sieve, with swab points agreed in advance.
- Measured containment performance for the compound band.
- Sieve inside the contained boundary.
- Cleaning validation designed before installation.
Selection factors
- Occupational exposure band of each material.
- Containment data for the station.
- Cleaning method and swab locations.
- Sieve aperture and its effect on the material.
- Documentation needed for qualification.
Common failure modes
- Containment described rather than measured
- Sieve outside the contained boundary
- Cutting mechanism impossible to clean to the standard
- Qualification delayed by missing documentation
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