Designed to provide consistent, reliable EMI/RFI shielding for all electrical ventilation applications, Alco’s fabricated metal products include honeycomb vents and filters that offer optimum shielding and maximum air flow, with reduced turbulence and low noise. Our vents and filters are ideal for solving a wide range of venting problems, from computers and electronics to medical equipment and commercial applications.

:: ATI Dust Filter

:: ATI Brass & Steel Vent Panels

:: ATI Dual Stack Vent Panel

:: ATI 90° Cell and Slant Cell
   Ventilation Panel

:: ATI Circular Vent Panels

:: ATI-Thin Filter

:: ATI 3-Layer Filter

:: Alco Metal Mount Frames

:: Alco Metal Mount Strips


ATI 3-Layer Filter

ATI 3-Layer Filter is a superior dust filtration, EMI shielding filter for minimum air flow requirements. Aluminum extruded profiles surround three layers of aluminum screen and are welded in place. Three layers of wave formed aluminum wire screen, each with a decreased depth are layered together resembling the look of a continuous wave. The combined layers of aluminum screen entrap dust particles. Both sides of the 3-Layer Filter are protected by a rigid grill. Select from Alco-Multi Gasket, a combination of neoprene sponge and monel mesh, Alco-Knit or conductive gaskets for shielding and environmental requirements. Through hole locations are customized for easy surface mount installation with standard 8-32 rivnuts or .203 diameter holes. Plating options enhance shielding effectiveness. 3 Layer Filters can be vacuum cleaned in place, removed and blown with light compressed air or cleaned with mild detergent, ATI 3-Layer Filter is suited for use in enclosures, electronic equipment and portable military control stations.

*When cleaning, care should be taken with the EMI gasket.
*ATI 3-Layer Filter available in ATI Circular Vent design

Material Specifications:
Frame: Aluminum 6063-T4 per AMS-QQA-200/9 Alloy
Core Material: Aluminum 1,2,3 Screen per RR-W-365
Grill: Aluminum Alloy 5005 H34 per ASTMB-209
Aluminum Alloy 3003 H14 per ASTMB-209

Alco Multi-Gasket
• Neoprene Sponge ASTM-D-6576
• Silicone Solid Grey or Orange A-A-59588
• Silicone Sponge per AMS-3195

• Aluminum Wire per AMS-4182 / 5056 Alloy .005 wire diameter
• Monel Wire per QQ-N-281 .0045 wire diameter
• Sn/Cu/Fe per ASTM-B-520 .0045 wire diameter

Conductive MIL-G-83528

Finish Options:
• Chromate Coating MIL-C-5541 Class 1 and 3 (Clear or Gold)
• Tin Plating ASTM B 545
• Electroless Nickel AMS-C-26074
• Cadmium AMS-QQ-P-416

Frame Designs

                                        ATI 3-Layer Filtering Performance