Automatic Roll Air Filter: Corrosion-Resistant Design for Industrial HVAC Systems

Automatic Roll Air Filters are motor-driven media-advancing prefilters designed for large-volume HVAC and process-air systems. HICLOVER integrates corrosion-resistant materials―galvanized steel, coated steel, and stainless steel―to ensure reliable operation in humid, coastal, or chemically active environments.

1. Corrosion-Resistant Structure

The housing and frame options include:

• Galvanized steel for standard indoor installations.

• Epoxy-coated steel for enhanced surface protection.

• Stainless steel (304/316) for high-humidity or corrosive air streams.
  These materials extend service life and maintain structural integrity even under continuous air-flow exposure.

2. Working Principle

The filter uses an electric drive system to unroll fresh filter media automatically as pressure drop increases. This maintains a stable airflow and constant pressure without manual replacement or system shutdown.

• Continuous air filtration while the media advances.

• Automatic control via differential pressure sensor or PLC interface.

• Optional manual override for maintenance and inspection.

3. Technical Advantages

• Steady pressure drop across long operation cycles.

• Simple motorized mechanism, low energy use.

• Modular frame for easy retrofit in existing HVAC ducts.

• Optional photoelectric or timer-based control systems.

• Compatible with standard G3CG4 synthetic or cotton filter rolls.

4. Global Applications

Used in large-scale ventilation and process air systems across:

• North America, Europe (EU/UK), Middle East, Africa, Latin America, India, ASEAN, Japan/Korea, and Australia/New Zealand.
  Industries include:

• Commercial buildings and airports.

• Data centers, EV and battery plants.

• Food and beverage production.

• Marine and offshore HVAC systems.

• Waste-to-energy and recycling plants.

5. HICLOVER Engineering Capability

HICLOVER supplies complete automatic roll air filter systems with corrosion-resistant frames, PLC panels, and optional stainless ducting. Units can be configured for horizontal or vertical air paths, matching site-specific airflow and installation constraints.

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