Problem & answerC-02
Poor Powder Flow
Likely causes
- High moisture
- Fine powder
- Poor formulation flowability or insufficient glidant
- Powder compaction
- Static electricity
How to fix it
- 1Verify room humidity is within specification.
- 2Check powder properties (including bulk and tapped density) against the batch record.
- 3Confirm the correct amount of glidant was added, if applicable.
- 4Inspect the agitator and dosing disc for build-up and clean the dosing system.
- 5Reduce machine speed if needed.
- 6Carry out a fill-weight check before resuming full production.
Technical note
Poor flow causes weight variation, stoppages, hopper bridging, inconsistent filling, segregation and lost output. Because the machine fills by volume, bulk and tapped density determine the achievable capsule weight.It is fixed when
Capsules fill consistently and meet weight specification for at least 20 consecutive samples.
Stop it coming back
- Control room temperature and humidity, use validated formulations and clean the dosing system after each batch.
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