EMI RFI shield ventilation air filter for emc test chamber brass type
| • FRAME |
• Aluminum alloy 6063-T4 per QQ-A-200/8 |
| • HONEYCOMB |
• MIL-C-7438 |
| • FASTENER |
• Aluminum captive insert, 8-32 UNC-3B |
| • CHROMATE FINISH |
• MIL-C-5541C |
| • TIN-PLATING |
• MIL-T-10727 |
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
Standard Dimension for honeycomb vent window for shielding room
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Honeycomb Materials
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(A) Steel (B) Brass
(C) Stainless stee
(D) Aluminum
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Honeycomb Size
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(A) 300*300mm
(B) 300*600mm
(C) 450*450mm
(D) 600*600mm
(E) 600*900mm
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Honeycomb Thickness
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(A) 12.5mm
(B) 19mm
(C) 25mm
(D) 50mm
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The Hole size
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(A) 3.2mm
(B) 4.0mm
(C) 4.8mm
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Frame Type
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(A) With frame
(B) Without frame
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Sheilding Performance for honeycomb vent window for shielding room
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Magnetic field
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14KHz≥75dB
150KHz≥100dB
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Electric field
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200KHz-50MHz≥110dB
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Flat wave
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50MHz-1GHz≥110dB
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Microwave
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1GHz-10GHz≥100dB
10GHz-18GHz≥90dB
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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.
Advanced EMI RFI Shielded Ventilation for Critical EnvironmentsHAOZHUO WaveShield EMI RFI Shielded Waveguide Air Vents are engineered to provide high-efficiency airflow without sacrificing electromagnetic protection. In today’s rapidly advancing electronic environments, maintaining thermal stability while ensuring EMI/RFI isolation is a crucial requirement for shielding rooms, telecom cabinets, and military-grade enclosures. These vents offer optimal lowpass filter characteristics by design, blocking unwanted high-frequency interference while allowing cool air to circulate freely.Crafted using precision-aligned honeycomb structures in brass, steel, or aluminum, our shielded waveguide vents are compliant with international EMI shielding standards. They deliver broadband attenuation levels reaching up to 110dB, effective across magnetic to microwave frequencies. Whether integrated into RF shielding rooms or electronic enclosures, these vents perform dual roles: maintaining controlled internal environments while acting as passive EMI/RFI suppressors. Lowpass Filter Integration with Maximum Shielding EfficiencyEach air vent in the WaveShield series acts inherently as a lowpass filter, rejecting high-frequency noise while facilitating clean airflow. These vents function on waveguide-below-cutoff principles, ensuring minimal signal leakage while allowing natural ventilation. Designed for surface mount installations, the vent frames can be easily integrated into new or existing cabinets, chambers, or shielded environments with minimal disruption to infrastructure.Honeycomb filter thickness options of 12.5mm, 19mm, and 25mm offer varying degrees of shielding, letting engineers tailor performance based on system requirements. This makes the product ideal for OEM integrations, telecom system cooling, and power distribution unit ventilation. The standard filter panel sizes (300×300mm and 600×600mm) can also be custom configured, allowing seamless adaptability across applications with different airflow and shielding priorities. Built for OEM, Military, Medical, and Telecom System BuildersThe WaveShield Series isn’t just another vent—it’s a modular, performance-driven shielding solution trusted by emi filter manufacturers, rfi line filter suppliers, and global system integrators. With CE and RoHS certification, every unit is produced in accordance with strict quality control and safety guidelines. Thanks to our fast lead times, high-volume manufacturing capacity (10,000 pieces/month), and industry-proven designs, we are the supplier of choice for partners across aerospace, medical imaging, railway electronics, and critical data infrastructure.The modular vent system accommodates both AC and DC line filter integration, enhancing its shielding properties when paired with our low pass filter and RC filter solutions. The use of premium honeycomb materials ensures that shielding remains effective for years even under harsh environmental conditions. As a long-standing player among global filter and EMI control component providers, HAOZHUO offers not only technical quality—but commercial reliability.
Product Advantages
Superior EMI and RFI Shielding PerformanceHAOZHUO’s WaveShield series of EMI RFI shielded air vents are engineered using precision honeycomb waveguide technology, providing broadband electromagnetic attenuation up to 110dB across magnetic, radio, and microwave frequencies. This advanced shielding performance ensures protection against electromagnetic leakage in sensitive environments such as anechoic chambers, telecom base stations, and military shelters. Our products meet stringent industry regulations, making us a trusted partner for system designers, defense contractors, and emi filter manufacturers worldwide.Integrated Lowpass Filtering for Clean VentilationThese air vents are more than passive components—they function as lowpass filters in their own right, effectively attenuating high-frequency interference while maintaining optimal airflow. Their honeycomb geometry and waveguide-below-cutoff design act as a natural lowpass filter, preventing EMI/RFI from escaping through ventilation ports. This design allows you to protect critical electronics without the need for bulky or powered filtering systems, reducing system complexity and saving cost while improving shielding performance.Customization to Meet Complex Engineering NeedsAs an experienced emi filter manufacturer, HAOZHUO provides full customization capabilities for vent size, frame material (brass, steel, aluminum), honeycomb depth (12.5mm–25mm), and frame design. Whether your application requires square, rectangular, or circular openings, we tailor vents to integrate seamlessly into your chassis, rack enclosure, or RF shielded room. This flexibility makes our vents an ideal match for OEMs, rfi line filter suppliers, and systems requiring retrofitting or performance upgrades.Robust Materials with Long-Term DurabilityConstructed using corrosion-resistant metals and designed for harsh operating conditions, WaveShield vents maintain mechanical and electrical integrity even in challenging environments. The solid construction ensures years of stable performance, making them suitable for military communication systems, medical devices, and industrial filter manufacturers in need of rugged, long-lasting shielding solutions. Our vents undergo rigorous environmental, thermal, and vibration testing to meet industry durability standards.High-Volume Capacity with Competitive PricingWith a monthly production capacity of 10,000 pieces and flexible minimum order quantities, HAOZHUO delivers exceptional value at scale. We support both small batch custom orders and large-volume manufacturing while maintaining a consistent quality assurance process. Our pricing structure is optimized for commercial competitiveness, making us the ideal supplier for global distributors, integrators, and end users looking for high-performance EMI/RFI shielding at an affordable cost.Seamless Integration with Filtering SystemsThese EMI vents can be paired with our full range of filter solutions, including ac power line filters, lowpass filter modules, and custom ac filters, enabling system-wide EMI suppression across power, signal, and ventilation lines. This holistic approach to electromagnetic compatibility (EMC) enables engineers to simplify compliance and maximize system integrity using a single supplier for all filtering needs.Optimize ventilation and EMI performance with Haozhuo’s waveguide air vent solutions—complete with emi filter circuit, low pass filter, and rfi filter options. Contact us now for custom sizes, CAD drawings, and volume pricing.
About Us
Precision-Crafted EMC Solutions Backed by Decades of Engineering
Founded in 2003, Haozhuo is a global manufacturer of EMI filters and shielding products tailored to stringent IEC and military standards. Our expertise spans across industrial automation, medical equipment, new energy, rail transit, and defense sectors. With facilities certified to ISO 9001/14001/18001 and CE/UL/VDE compliance, every product reflects deep technical rigor and industry relevance.
End-to-End Manufacturing Control with Lab-Verified Performance
Each EMI filter and shielding solution is engineered in-house with advanced lab tools, including spectrum analyzers, LCR bridges, pulse generators, and shielded test rooms. We rigorously validate every design through simulation and physical testing against CISPR, EN, and GJB metrics. This enables us to offer rapid prototyping, stable mass production, and a standard two-year product warranty.
Scalable Production with Global Reach and Certified Quality
Operating from Changzhou with over 50 staff and an annual export volume exceeding 90%, our production integrates ERP and MES systems for traceability and efficiency. With sales in Europe, Korea, and over 100 countries, we deliver trusted EMC products to high-stakes industries. Milestones include ISO certification (2004), CE/RoHS (2007), and High-Tech Enterprise recognition.
Sustainability and Service in Every Shipment
Haozhuo incorporates ISO 14001 environmental protocols and material efficiency measures throughout design and production. We provide fast shipping via DHL, FedEx, and UPS, local service hubs in Germany, Italy, and Korea, and personalized technical support to ensure compliance, continuity, and cost-efficiency for your global projects.
FAQ
1. Who are we?
We are Changzhou Haozhuo Electronic Co., Ltd., a manufacturer specializing in EMI filters and electromagnetic shielding products since 2003. With ISO 9001/14001/18001 certifications and CE/UL/VDE compliant solutions, we serve over 100 international clients across industries like industrial automation, medical devices, energy systems, and rail transit.
2. How can we guarantee quality?
Quality is assured through in-house EMC testing facilities equipped with advanced analyzers, LCR bridges, and shielded chambers, alongside rigorous procedures that meet IEC, EN, and GJB standards. Our products undergo full inspection before delivery and include a standard two-year warranty for long-term reliability.
3. What can you buy from us?
We offer a wide range of EMI power-line filters, signal-line filters, feedthrough components, passive harmonic filters, RF shielding gaskets, copper foils, wave absorbers, and integrated solutions such as Faraday cages and MRI shielding rooms—all customizable to your exact technical and environmental needs.
4. Why should you buy from us not from other suppliers?
Our competitive edge lies in our end-to-end design, lab validation, and ISO-certified production system that ensures product performance and fast compliance with global standards. With local service in Germany, Italy, and Korea, plus fast international logistics and responsive engineering support, we minimize your procurement risks and lead time.
5. What services can we provide?
We provide one-stop EMC solutions including customized product design, in-house emission and insertion-loss testing, OEM labeling, international shipping with full tracking, technical consultation, and ongoing after-sales service—all optimized to support global clients with complex EMC requirements.
