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 Circular Vent Panels

What differentiates ATI-Circular EMI Vents from other conventional panels is the shape.
Billets, rods, bar and plate stock are fabricated into rigid frames for structural support.
Core materials of honeycomb in assorted thickness and cell size, 3-layer screen, multi-layered screen, rigid grill and combinations may be selected for circular vent assemblies. EMI gaskets and environmental seals can be applied. Plating options enhance shielding effectiveness. Through hole locations are customized for easy surface mount installation with standard 8-32 rivnuts or .203 diameter holes. ATI Circular Vent Panels are designed for a precise fit of round openings on mounting walls or enclosures. Circular Vents are ideal in applications where a conventional rectangular vent may impede mounting space. Alco’s special circular vent process can be fabricated in ATI 90° Cell, ATI-Dual Stack or ATI 3-Layer designs.

* ATI Circular Vent Panels available in brass and steel.

Material Specifications:
Frame: Aluminum Alloy 6061-T-6 per AMS-QQ-A-200/8 or 6061-T-1 per AMS-QQ-A-250/11
Core Material: Aluminum Honeycomb Alloy MIL-C-7438
Aluminum 1,2,3 Screen per RR-W-365
Grill: Aluminum Alloy 5005 H34 per ASTM-B-209
Aluminum Alloy 3003 H14 per ASTM-B-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