Filter Bag Cages are the internal frames or skeletons inserted into filter bags of baghouse / dust-collector systems, providing structural support so bags maintain their shape under airflow or pressure.
Best use scenarios — Industrial dust collection, flue-gas cleaning, cement & mineral plants, metal processing, waste-incineration, high-dust load air filtration, any baghouse filter system.
Compatible industries — Cement, steel & metallurgy, power plants, waste incineration, mining, mineral processing, chemicals, general industrial dust control.
Key Selection Criteria:
A well-engineered cage improves bag cleaning efficiency, reduces pressure drop, minimizes re-entrainment, and extends filter bag life.
Stainless Steel Filter Bag Cages are high-strength, corrosion-resistant structural frames installed inside filter bags
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Titanium Filter Bag Cages are ultra-corrosion-resistant, lightweight, high-strength structural frames designed for the most aggressive...
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Silicone Coated Dust Bag Cages are high-strength steel support cages treated with a high-temperature silicone layer to protect...
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Galvanized Steel Filter Bag Cages are cost-effective, corrosion-protected support structures designed...
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Pleated Filter Bag Cages are high-efficiency, extended-surface support structures engineered for pleated filter bags
View Details| Types | Round, oval, diamond, pleated. |
| Wire Diameter | 3.0/3.2/3.5/3.8/4.0/5.0 mm. |
| Number of Wires | 8 / 10 / 12 / 16 / 20 / 24. |
| Ring Space | 6 inch or 8 inch (15.24 cm or 20.32 cm) |
| Cage Diameter | 4 inch to 8 inch (100 mm to 200 mm) |
| Wire Thickness | 2 mm to 5 mm |
| Material | Carbon Steel, Titanium Steel, Galvanized Steel, Stainless Steel. |
| Connection Methods | Flanges, collars, or venturis. |
| Finishment | Epoxy, silicon, PVC vinyl coating. |
Filter bag cages are essential structural supports inside industrial baghouses, ensuring optimal filter bag shape, maximizing dust-capture efficiency, and maintaining stable airflow in demanding particulate-control environments.
Filter bag cages provide dimensional stability and strong mechanical support inside cement kilns and mineral-processing baghouses. They help resist abrasion from clinker dust, maintain bag shape under high gas temperatures, and improve pulse-jet cleaning performance—ensuring consistent particulate control in cement plants, lime plants, and mineral grinding systems.
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Municipal and industrial incinerators produce corrosive, fine-particle exhaust; cages engineered with stainless steel, titanium, or special coatings (epoxy, silicone, PTFE) provide superior corrosion resistance and structural integrity. They improve dust-collection reliability under extreme chemical and thermal stress.
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Coal-fired boilers, biomass power plants, and industrial heating systems rely on filter bag cages for stable flue-gas filtration. Proper cage rigidity and ring spacing ensure optimal pulse-jet cleaning, reduced pressure drop, and long bag life while capturing fly ash and fine particulates from high-temperature exhaust streams.
Read MorePlants upgrading from generic cages to Omela-engineered filter bag cages typically achieve up to 30% reduction in total operating cost through fewer bag failures, fewer emergency shutdowns, and more stable differential pressure.
Optimized ring spacing, wire diameter, and anti-corrosion finishes help filter bags stay round, stable, and properly supported, delivering 2–3 times longer bag and cage life in cement, steel, power, and waste-incineration baghouses.
The foundation of cage performance lies in the material used. Common options include carbon steel, galvanized steel, stainless steel (304/316), and titanium. Material selection directly determines resistance to high temperatures, acidic/alkaline flue gas, moisture-rich environments, and corrosion. Stainless steel or coated cages are preferred for applications involving corrosive gases, high humidity, or continuous high-temperature operation.
Wire diameter (2–5 mm), wire count (8/10/12/16/20/24), and ring spacing (6 or 8 inches) collectively define the cage’s rigidity and ability to maintain bag shape under reverse-pulse cleaning. Thicker wires and higher wire counts increase strength, reduce deformation, and minimize bag abrasion—directly extending filter bag life and improving filtration stability.
The cage geometry—round, oval, diamond, or pleated—must precisely match the filter bag dimensions. Proper alignment ensures smooth airflow, prevents bag stretching or sagging, and reduces wear points. Key dimensions include cage diameter (100–200 mm), length (customized), and ring spacing. Accurate sizing ensures stable cleaning behavior and consistent differential pressure.
Surface treatments significantly enhance durability in demanding environments. Common finishes include epoxy coating, silicone coating, PVC vinyl coating, and PTFE coating. These treatments improve corrosion resistance, abrasion resistance, moisture resistance, and high-temperature stability—making them essential in cement plants, steel mills, waste incinerators, and chemical processing facilities.
The connection method influences cage stability, sealing, and pulse-jet cleaning efficiency.Venturi improves reverse-pulse acceleration and enhances cleaning intensity. Collars and flanges ensure secure seating inside the baghouse tube sheet.
Filter bag cages are the internal frames or skeletons installed inside filter bags of baghouse / dust-collector systems. They support the fabric against airflow and pulsing pressure so the bags keep their shape, avoid collapse, and maintain a stable filtration area throughout the entire service life.
Available cage shapes:
By combining the right cage shape with the correct material and coating, Omela helps optimize dust capture efficiency, bag life, and overall baghouse performance.
Choosing the right filtration supplier affects everything from system stability to maintenance downtime. At Omela Filtration, we combine reliable materials, controlled production, and years of industry experience to support dust and liquid filtration needs across different plants and applications.
We use consistent-grade filter media, sewing thread and metals sourced from qualified suppliers. Each batch is checked for weight, thickness, air permeability and tensile strength to keep performance steady across shipments.
Our facility is equipped with modern sewing lines, hot-welding machines and automated inspection tools. This keeps production efficient and helps us meet tight delivery schedules, even on custom orders.
Our engineers and technicians have long experience with dust collectors, liquid systems and industry-specific conditions. They help you match materials to temperature, chemistry and air-to-cloth ratios to avoid unnecessary failures.
From sampling to documentation and shipping, our team responds quickly and keeps information clear. Customers in cement, asphalt, power and water-treatment plants rely on our service to resolve problems without delay.
From the first technical discussion to installation and long-term maintenance, our team stays involved at every stage. We analyze your operating conditions, adjust product designs when needed, and ensure the final filtration setup works reliably in real plant environments. After delivery, our service team continues to provide guidance and troubleshooting support, helping you keep your system stable and downtime low.
With 20+ years of experience and 1000+ global clients, we deliver stable filtration performance and dependable dust-collector operation.
