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Industrial-grade full-chassis fan filters designed to shield fan-cooled power conversion systems against dust, metallic particulates, dirt, and grimy air standard in severe operating environments.
In heavy industrial, mining, utility, and railway operating sites, fan-cooled power supplies draw surrounding air to dissipate thermal loads. Without appropriate filtration, airborne dirt, metallic dust, and chemical grime settle on sensitive printed circuit boards (PCBs) and internal cooling fans.
This buildup creates thermal insulation, reduced dissipation efficiency, short-circuit hazards, and motor blade imbalance—ultimately leading to premature module failure and costly un-planned downtime.
ABSOPULSE heavy-duty industrial fan filters cover the entire fan intake surface of the power supply chassis. Unlike small foam covers that rapidly saturate and starve power supplies of essential airflow, our pleated high-capacity filters minimize static pressure drop while offering maximum dust-holding performance.
Designed for compact 3U4 fan-cooled power supplies. Factory-installed pleated media ensures uninterrupted cooling flow and extended field life in dusty control cabinets.
Optimized for mid-range 3U7 power supply units. Delivers robust surface-area protection against airborne metallic dust, grit, and industrial atmospheric debris.
Full-width 19-inch rack-mount chassis filter for high-power system assemblies. Protects multiple hot-swappable plug-in modules operating under heavy continuous duty.
| Filter Model / Compatibility | Filter Media Type | Filtration & Airflow Efficiency | Maintenance Method | Factory Installation Option |
|---|---|---|---|---|
| 3U4 Chassis Filter | High-density pleated synthetic media | High particle retention; minimal flow impedance | Vacuum cleanable multiple times before replacement | Factory fitted onto new power supply builds |
| 3U7 Chassis Filter | Heavy-duty pleated dirt & dust filter | High dust holding capacity; low pressure drop | Visual inspection on front face; vacuum cleanable | Factory fitted onto new power supply builds |
| 6U7/19 (2X3U7/19) Rack Filter | Full-surface area 19" rack pleated media | High volume airflow retention for heavy loads | Easy front-panel access for field service | Factory fitted onto 19-inch rack systems |
Individual foam filters have limited surface area, choke airflow quickly when exposed to dust, and starve internal electronics of essential cooling air. ABSOPULSE full-chassis fan filters cover the entire fan intake surface, using pleated media to maximize particulate capacity while keeping static pressure drop extremely low.
Yes. Filters are factory installed on 3U4, 3U7, and 6U7/19 chassis platforms during production. Our engineering team can also evaluate custom mechanical enclosure modifications to add fan filtration to existing semi-custom power conversion projects.
Servicing intervals depend on airborne dust concentration at the installation site. Contamination is visible from the front of the unit. Filters can be cleaned with a vacuum cleaner several times before replacement elements are necessary.