How cabin pressurisation systems work on mining machinery
Pressurisation, filtration and ventilation are separate functions from cooling — and they fail differently.
CALL 069 268 0988The principle
A pressuriser fan draws outside air through a filter and pushes it into the cab, keeping internal pressure slightly above ambient so dust migrates outward rather than inward.
Components
Fresh-air intake, pre-cleaner where fitted, pressurisation filter, fan, ducting, recirculation path and cab seals.
Common failures
Saturated filters, a failed or reversed fan, perished door and window seals, unsealed cable entries and blocked intakes.
Testing
Pressure can be measured with a manometer against the manufacturer's specification. Smoke or airflow checks help locate leak paths around seals and penetrations.
Related guides
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