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As core components of baghouse dust collectors, filter cages (also named filter bag frames) are engineered to support filter bags, maintaining their shape stability during filtration and ash cleaning for consistent high - efficiency dust removal.
Crafted from low - carbon steel, galvanized steel or stainless steel with diverse shapes (round, flat, multi - section), they adapt to corrosive, high - temperature and other harsh conditions. Ideal for metallurgy, building materials, power generation and more industries.
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Precision Dust Collector Filter Cages serve as the critical structural framework for industrial dust removal systems. Often referred to as the "ribs" of a filter bag, these components are engineered to provide unwavering support, ensuring the filter bag remains fully expanded during filtration and cleaning cycles. Manufactured by Botou Xintian Environmental Protection Equipment Co., Ltd., these high-precision cages are designed to prevent bag collapse, deformation, or premature wear, which are vital for maintaining high dust collection efficiency and meeting stringent emission standards. Built for demanding industrial environments, including high-temperature, high-humidity, and corrosive conditions, our filter cages deliver reliable performance that helps facilities optimize their environmental protection efforts and maintain continuous production efficiency.
Constructed from carefully selected low-carbon steel or stainless steel, our industrial dust collector filter cages are engineered for durability. Utilizing advanced surface treatment technologies—including nitriding oxidation, galvanizing, or plastic spraying—the cages exhibit exceptional resistance to corrosion and mechanical wear. The manufacturing process guarantees a smooth, burr-free finish, which significantly minimizes friction against the filter bags. This attention to surface integrity prevents abrasive damage to the fabric, effectively extending the operational life of the filtration media even when exposed to harsh flue gases or chemical dust.
Quality is embedded in every stage of our production. Operating under strict ISO9001 quality management standards, Botou Xintian implements rigorous inspections from raw material sourcing to final product dispatch. By utilizing precision robotic welding and automated processing equipment, we ensure that every filter cage maintains a consistent dimensional tolerance of ≤±0.5mm. This high level of manufacturing accuracy eliminates structural defects that could otherwise lead to uneven airflow or localized dust accumulation.
The structural integrity of a filter cage directly impacts the reliability of the entire dust extraction system. Our custom metal filter cages feature a strategically optimized modular design with reinforced ribs, providing exceptional resistance to bending or deformation under high negative air pressure. The precision welding process creates strong, uniform joints that prevent structural failure during rigorous pulse-jet cleaning cycles. Through specialized annealing and aging treatments, internal material stress is effectively relieved, ensuring the cages maintain their precise shape over long-term continuous operation, thereby reducing overall maintenance frequency.
Parameter | Specification |
Material | Low-carbon steel (Q235), stainless steel (304/316L) |
Diameter Range | 110mm - 160mm (customizable) |
Length Range | 1000mm - 6000mm (customizable) |
Surface Treatment | Nitriding oxidation, galvanizing, plastic spraying |
Welding Technology | Precision robotic welding |
Dimensional Tolerance | ≤±0.5mm |
Number of Ribs | 6-12 (adjustable based on diameter) |
Temperature Resistance | -40℃ - 280℃ |
Connection Method | Flange connection, thread connection (customizable) |
Highly suitable for heavy-duty dust removal systems in cement plants, steel mills, and power generation facilities. The durable cage structure effectively handles high-volume particulate matter, including fly ash and abrasive metal dust, ensuring continuous and stable operation of large-scale production lines.
Widely integrated into waste incineration plants and chemical waste gas treatment facilities. The specialized corrosion-resistant surface treatments allow the cages to withstand challenging environments containing acidic or alkaline dust, assisting facilities in meeting strict environmental emission regulations.
Designed to comply with rigorous safety and hygiene requirements, these cages are ideal for dust extraction in grain processing, flour mills, and beverage plants. The exceptionally smooth surface finish prevents particulate accumulation, minimizing the risk of cross-contamination and protecting overall product quality.
Deployed in welding workshops, foundry stations, and grinding facilities to capture fine metal dust. By maintaining a clean atmospheric environment, these filter cages help protect occupational health and safety while offering flexible compatibility with various industrial dust collector models.
Recognizing that every filtration system has unique requirements, we provide comprehensive, customizable dust collector filter cage solutions tailored to specific project demands:
Dimensional Adjustments: Custom-tailor the diameter, length, and the number of longitudinal ribs to accurately match existing dust collector models and filter bag specifications.
Material Selection: Choose from high-strength low-carbon steel, 304 stainless steel, or 316L stainless steel, depending on the specific temperature, moisture, and corrosive nature of the operating environment.
Surface Treatments: Opt for galvanizing, plastic spraying, or nitriding oxidation to maximize the cage's resistance to chemical degradation and mechanical wear.
Connection Configurations: Specify flange, thread, or quick-connect structures to ensure secure and efficient integration with your current dust extraction equipment.
Our dedicated engineering team offers technical consultation and precise drawing designs, guaranteeing that the customized products align accurately with your operational scenarios. We are committed to a 7-day quick response cycle for all custom manufacturing requests.
Professional R&D Capability: As a specialized manufacturer of intelligent environmental protection equipment, our dedicated engineering team continuously focuses on the innovation and structural optimization of filter cage technology.
Strict Quality Control: Supported by our ISO9001 certification, we enforce a 100% inspection protocol prior to delivery, ensuring consistent product reliability and dimensional accuracy.
Efficient Logistics Support: Strategically located in the Siying Industrial Zone with highly developed transportation networks, we facilitate rapid and secure delivery to both domestic and international markets.
Comprehensive After-Sales Service: We provide thorough installation guidance, maintenance training, and a solid 12-month quality warranty, with a commitment to resolving any operational inquiries within 24 hours.
Cost-Effective Solutions: Our lean manufacturing processes effectively reduce production overhead while maintaining superior product performance, allowing us to offer highly competitive pricing for bulk procurement.
How to select the right filter cage material for different working conditions?
Selecting the optimal material depends on your specific industrial environment. Choose galvanized steel for standard or slightly humid environments to prevent basic rust. Opt for 304/316L stainless steel in highly corrosive scenarios, such as chemical processing or waste incineration. For high-temperature dust removal tasks, silicone-coated steel is highly recommended, as it withstands continuous operating temperatures up to ≤280℃ while effectively resisting chemical degradation.
What is the typical service life of filter cages and how to extend it?
The expected lifespan varies significantly depending on the selected material and operating conditions: galvanized cages typically last 1–2 years, stainless steel ones 2–3 years, and silicone-coated ones 3–4 years. To maximize this service life, establish a regular cleaning schedule, maintain proper pulse-jet pressure to avoid excessive mechanical stress on the wire structure, and prevent moisture buildup inside the dust collector which can accelerate corrosion.
What installation points should be noted to avoid filter bag damage?
Proper installation is critical to prevent premature filter bag failure. Ensure the verticality error is ≤1‰ to avoid uneven friction during pulse cleaning. Strictly control the fit gap between the cage and filter bag to ≤0.3mm for optimal support without overstretching. Handle all components carefully to avoid scratching the bags during assembly. For multi-section cages, ensure all joints are tightly and smoothly connected to prevent snagging or misalignment.
How to judge if a filter cage is damaged and needs replacement?
Regular inspection is essential for maintaining filtration efficiency. Check for visible welding cracks, structural deformation (bending), or coating peeling, as these defects directly compromise bag integrity. Damaged cages cause abnormal bag wear, reduced filtration efficiency, and potential dust leakage. If any of these issues are identified during routine maintenance, replace the affected cages immediately to protect your filter bags and maintain optimal dust collector performance.
