Optimal Airflow Shielded by Waveguide Honeycomb Technology
HAOZHUO’s HZ‑300 Honeycomb EMI Vent is engineered to meet the exacting demands of anechoic chambers, RF enclosures, and shielded rooms. Featuring precision-engineered waveguide honeycomb structures plated with tin for seamless solder joints, this panel ensures maximum RF attenuation—up to 110 dB for flat-wave conditions between 50 MHz and 1 GHz, and even greater for others—while maintaining essential airflow. This combination suits lab-grade, military, telecom, and industrial environments requiring heat dissipation without EMI compromise.
Customizable Waveguide Filtering for EMI and RFI Control
Available in honeycomb thicknesses of 12.5 mm, 19 mm, 25 mm, and 50 mm, and cell sizes of 3.2 mm, 4 mm, or 4.8 mm, our panels are configurable to your airflow and attenuation requirements. Standard panel sizes include 300×300 mm, 300×600 mm, 450×450 mm, and 600×600 mm, with custom dimensions available. Made from brass, steel, or stainless steel frames, this solution is designed to align with both emi filter manufacturer and rfi line filter suppliers requirements—providing turnkey lowpass filter performance with mechanical resilience.
Built for Trusted Performance and Integration
All panels are surface-mounted for easy installation in existing shielding structures. They are tin-soldered to ensure structural integrity during transport and assembly, preserving EMI effectiveness. Ideal for OEMs, labs, and facility builders, HAOZHUO offers fast delivery, sample support, and customization—combining shielding precision with manufacturing quality.
Product Advantages
Broadband EMI/RFI Suppression:Delivers 75 dB attenuation at 14 kHz, over 100 dB at 150 kHz–1 GHz, and up to 90 dB even in the 10–18 GHz range—ensuring comprehensive protection.
Waveguide Honeycomb Filtering:Functionally equivalent to a lowpass filter, this vent blocks unwanted electromagnetic frequencies while allowing adequate airflow—ideal for controlled EM environments.
Plated and Soldered Build Quality:Features tin-plated soldering tailored for waveguide junctions—ensures full conduction, eliminates gaps, and maintains shielding integrity through harsh operational cycles.
Customizable to System Needs:Multiple cell sizes, thicknesses, materials, and panel dimensions allow tailored design—satisfying stringent requirements for OEM systems, telecom racks, and medical imaging equipment.
Durable Metals for Long-Lasting Use:The steel, brass, or stainless steel frames are rugged enough for industrial, lab, or outdoor use. Optional plating or painted finishes add corrosion resistance.
Fast Delivery & Low MOQ:With an MOQ of just one piece and monthly capacity of 10,000 units, HAOZHUO meets urgent OEM and project deadlines with flexibility and scale.
EMI RFI shield ventilation air filter for anechoic chamber
EMI shielding vent panels or attenuvents are made from aluminium or steel honeycomb mounted into a frame. Many aluminium frame styles are available together with different thicknesses and configuration of honeycomb to meet different shielding requirements. Protective grilles are available for vulnerable areas together with dust filtration foams. Many plated or painted finishes can be specified.
Brass/Steel/ Stainless steel honeycomb
1. Material:Steel, brass,stainless steel,aluminum
2. standard size: 300x300mm, 300x600mm
3. Standard cell size: 3.2/4.0/4.8mm
4. MOQ 1 piece
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Product Features |
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Honeycomb filter use for shielding room and cabinet |
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Materials: Steel, brass, Aluminum, Stainless steel |
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The waveguide vent provides maximum RF attenuation while allowing optimum airflow |
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We can also produce various customized specification for civil or military use according to customer`s requirements. |
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High quality, Reasonable price and Short delivery, sample order accept |
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Technical Specifications |
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Honeycomb Standard Thickness(mm) |
12.5mm/19mm/25mm/50mm |
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Honeycomb standard size |
300x300/300x600/450x450/600x600mm |
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Hole size |
3.2mm/4.0mm/4.8mm |
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The frame materials |
Brass, Steel, Stainless steel |
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MOQ |
1PCS |
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Shielding Performance |
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Magnetic field |
14KHz≥75dB 150KHz≥100dB |
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Electric field |
200KHz-50MHz≥110dB |
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Flatwave |
50MHz-1GHz≥110dB |
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Microwave |
1GHz-10GHz≥100dB 10GHz-18GHz≥90dB |
Features for honeycomb vent window for shielding room
1- Provide maximum RF attenuation while allowing optimum airflow.
2- Available to suit individual requirements
3- Soldering waveguide windows use imported tin-plating to press molding, to ensure the quality while transport and assembly process and guarantee the shielding effect.
4- Produce various customized specification for civil or military use
Before-sale:
1.All inquires will be replied with 8 hours. 7D/24H service,Please feel free to contact us with Email/TM/Skype.
2.Strong technical team and Professional sales.
3.Customized packaging is acceptable.
4.Welcom customers from all the world to visit our factory.
After-sale:
1.All emi filter will be tested and adjusted before shipping.
2.After receiving the products,Any question we will try our best to solve.
ABOUT US
Changzhou Hezi International Trading Co., Ltd. is a reputed EMI filter manufacturer operating under the HAOZHUO brand since 2012. We deliver over one million USD in annual sales through global exports (90–100%), supporting clients in rail transit, solar inverters, MRI/MED shielding, servo drives, and industrial power systems. Our team of 50–100 engineers employs top-tier testing facilities—including shield rooms, spectrum analyzers, and LCR meters—to ensure fast lead times, consistent quality, and a two‑year warranty on all our EMI solutions.
Upgrade your EMI shielding with high-performance Honeycomb Vents now—contact HAOZHUO for a rapid quote and custom design. Let’s secure your airflow and signal integrity together.
