Honeycomb vent panels

Aluminium honeycomb air ventilation panels

Aluminium Honeycomb Air Ventilation Panels consist of an Aluminium honeycomb foil held in a rigid extruded Aluminium mounting frame. The foil, formed and laminated into a series of honeycomb cells that are glued and perforated or laser welded at the join, ensures a conductive path at each join.

Although the foil is conductive in all directions, to enhance EMI performance, two pieces of honeycomb polarised at 90ºC to each other are recommended.

Integrated or separate EMI gasket

Shielding is achieved by using waveguide design principles (Honeycomb length four times cell diameter).

The frame can be supplied with an integrated or separate EMI/RFI gasket and can be treated with a variety of finishes to provide corrosion protection or improve conductivity.

Honeycomb vent panel


Ventilation panels are designed for use in electronic enclosures where good air flow is required for cooling and ventilation but where EMC compliance must be ensured.

Typical applications are

  • electronic enclosures
  • air conditioning units
  • fan housings
  • EMC racks
  • communication shelters


There is no standard at honeycomb vent panels. Customers can choose from a variety of frame types and mounting methods.

Honeycomb can be supplied in a number of configurations to suit different EMI/RFI shielding performance requirements. Standard perforated honeycomb is available with 30˚, 45˚, 60˚ and 90˚angles. Removable dust filters and integral insect screens can be provided.

Material properties

Vent panel material:

Aluminium 5052 ; thickness of the foil 0,04 mm

Thickness of honeycomb sheets:

  • 3,20 mm
  • 6,35 mm
  • 12,70 mm

Diameter of the cell:

  • 1,60 mm
  • 3,20 mm

Honeycomb vent panel and fan filter