aluminium honeycomb with threaded holes

Aluminium honeycomb fan shield with threaded holes 9535

Honeycomb fan shield ventilation panel with threaded holes for easy installation in e.g. computer cases to provide EMI shielding and maximum airflow without degrading the fan output.

A range of low-cost EMC vents for use with standard fan size fans. The aluminium honeycomb fan shield 9535 series is designed to provide EMI shielding and maximum airflow without degrading the fan output.

These vents provide a low-cost option to perforated metal when airflow rates are critical. An aluminium frame is fitted with one layer of 6.35, 12.7 or 25.3 mm thick honeycomb material and an optional Amucor conductive gasket to ground the honeycomb to the metalwork.

Holland Shielding Systems B.V. stocks aluminium Honeycomb Fan Shield in almost all sizes corresponding to industry-standard fans with standard 4-hole mounting (See table below for the standard sizes).


Dust screen (on request)

Dust screens consisting of multilayer expanded aluminium can be added, but airflow will be restricted.

Shielding performance

Shielding performance is achieved from 1/8 cell aluminium honeycomb panels with compressed edges mounted in a square-shaped flat Mu-ferro plate with a circular cut-out on the inside. The contact with the housing is made with an amucor shielding gasket cut into the correct shape of the Honeycomb fan shield.

Performance below has been measured with honeycomb specifications 1/8 Cell size, 1/4 Thick.

Frequency Field Typical (dB)
200 kHz H 53
100 MHz E 102
500 MHz P 85
2 GHz P 74
10 GHz P 58

Standard dimensions

In the table below some common types are specified to illustrate the required information. Threaded hole diameter is standard M3 but it can also be delivered in any other size.

aluminium honeycomb with threaded holes technical drawing

Material thickness

aluminium honeycomb with threaded holes material tichnesses

Part number Outer dimension Mounting holes horizontal Mounting holes vertical
A B C D Nr E Nr G
9535-40-40 40 40 31.5 M3 2 32 2 32
9535-50-50 50 50 41.2 M3 2 40 2 40
9535-60-60 60 60 53 M3 2 50 2 50
9535-70-70 70 70 66 M3 2 61.5 2 61.5
9535-80-80 80 80 76.5 M3 2 71.5 2 71.5
9535-90-90 90 90 85 M3 2 82.5 2 82.5
9535-120-120 120 120 115.06 M3 2 104.8 2 104.8
9535-140-140 140 140 130 M3 2 125 2 125
9535-220-220 220 220 206.5 M3 2 170 2 170
(Optional) other sizes on request

 

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To get a quotation for Aluminium honeycomb fan shield with threaded holes within 24 hours fill in the form below.

Specify the outer dimension in mm
This is the outer dimension in mm
Select an option:
6.35 : 6.35 mm thick honeycomb material
12.7 : 12.7 mm thick honeycomb material
25.3 : 25.3 mm thick honeycomb material
Select an option:
No : No gasket
A : Amucor gasket
* Note: The red blocks are required