Galvanized Bag Cage

A filter bag cage (or filter cage) is a structural support frame that ensures proper bag shape, prevents collapse during pulse-jet cleaning, and extends filter bag life. A well-designed filter bag cage significantly improves bag lifespan, cleaning efficiency, and system performance. Material selection depends on temperature, corrosion risk, and dust type, while proper maintenance prevents premature failure.

1. Maintains Bag Shape – Prevents bag sagging or wrinkling

2. Enhances Cleaning Efficiency – Ensures even dust release during pulsing

3. Reduces Wear & Tear – Protects bags from mechanical stress

4. Improves Airflow – Optimizes filtration performance

• Power Industry (Conventional Thermal Power/Biomass Power Generation)

Suitable for flue gas dust removal in coal-fired power plant boiler tails and biomass (straw, wood chip) power generation systems, adapting to medium-low temperature (≤120℃), dry, or weakly humid working conditions. The galvanized layer effectively resists mild moisture corrosion in flue gas, providing support for conventional filter bags such as polyester and polypropylene. It is widely used in small-to-medium thermal power enterprises and distributed biomass power generation projects, balancing cost and basic corrosion protection needs.

• Building Materials Industry (Cement/Gypsum/Ceramics)

Cement Industry: Used in dust collection systems for cement raw material crushing, raw mill, cement mill, and cement silo top/bottom, withstanding the wear resistance of cement dust and weakly alkaline environments. Adaptable to 100-150℃ working conditions, it is the mainstream choice for small-to-medium cement enterprises;

Gypsum/Ceramics Industry: Suitable for dust removal in gypsum powder processing and ceramic raw material crushing, resisting mild moisture corrosion in raw materials and ensuring the structural stability of filter bags during pulse cleaning.

• Metallurgical Industry (Steel Auxiliary Processes/Non-Ferrous Metal Primary Processing)

Applied in dust collection for auxiliary processes in the steel industry (scrap handling, section steel rolling, coking plant coal preparation workshops) and primary crushing/screening of non-ferrous metals (aluminum, copper). These working conditions feature low temperatures (≤100℃), dust mainly composed of metal oxides, and no strong acid-alkali corrosion. Galvanized cages meet rust prevention requirements, cost less than stainless steel cages, and are suitable for large-scale dust collection systems.

• Chemical Industry (Weakly Corrosive Chemical Raw Material Processing)

Used for dust removal in the production and packaging of chemical raw materials without strong acids, alkalis, or organic solvents (e.g., soda ash, chemical fertilizers, plastic particles), adapting to normal temperature and dry working conditions. Examples include dust collection in chemical fertilizer raw material mixing and plastic pelletizing workshops. The galvanized layer resists mild corrosive impurities in raw materials while controlling equipment investment costs.

• Grain Processing & Food Industry

Suitable for dust collection in flour mills, rice processing plants, feed production workshops, and raw material dust removal in biscuit/snack production. Working conditions are normal temperature (≤80℃), non-corrosive, and require high hygiene standards. Galvanized cages have a smooth surface, are easy to clean, prevent dust accumulation and bacterial growth, comply with food industry hygiene standards, and cost much less than stainless steel cages, making them suitable for large-scale production lines.

• Wood Processing & Furniture Manufacturing Industry

Used in dust collection systems for wood chip dust during plywood production, furniture cutting and sanding, and wood drying, adapting to normal temperature and dry working conditions. The galvanized layer resists mild moisture and wood chip friction during wood processing, and the stable cage structure cooperates with polyester filter bags for efficient ash cleaning. Widely used in small-to-medium wood processing plants and furniture factories.

• Mechanical Processing & Hardware Manufacturing Industry

Applied in dust collection for mechanical part sanding, auxiliary welding dust removal (non-strong acid welding fumes), hardware stamping dust collection, and machine tool processing debris dust removal systems. Working conditions are mainly normal temperature and dry, with dust mostly being metal chips or abrasive dust. Galvanized cages' rust resistance prevents debris from scratching filter bags and tolerates mild oil pollution, making them an economical choice for general machinery manufacturing enterprises.

• Mining & Coal Industry (Dry Separation/Dry Coal Conveying)

Used in dust collection systems for coal dry separation, coal conveying transfer stations, and coal powder preparation (low-temperature working conditions), adapting to normal temperature, dry, or weakly humid environments. Resists coal dust wear and mild moisture corrosion. Galvanized cages cost less than stainless steel, making them suitable for bulk applications in large-scale dust collection equipment of mining and coal enterprises, especially small-to-medium coal mines and coal processing yards.

• Building Materials Auxiliaries & Refractory Materials Industry

Suitable for dust removal during the crushing and molding of perlite, rock wool, and refractory brick raw materials, with working temperatures ≤150℃. Dust is inorganic non-metallic particles without strong corrosion. Galvanized cages meet structural support needs, resist mild alkaline erosion in raw materials, and are suitable for dust collection systems of small-to-medium refractory material factories and thermal insulation material processing plants.

• Waste Treatment (Low-Temperature Pretreatment Dust Removal)

Used for dust collection in domestic waste transfer stations, waste sorting workshops, and low-temperature drying section of waste incineration pretreatment dust collection systems, adapting to normal temperature and medium humidity working conditions. The galvanized layer resists mild corrosive substances and moisture in waste dust, is cost-effective, and suitable for supporting dust collection equipment in urban waste treatment stations and waste sorting plants.

Relying on its solid product quality,Keskay Filter has been awarded the "Guangdong Provincial High-Tech Product" certification multiple times, covering a number of core products from 2014 to 2017. These certifications indicate that its products such as dust-removal bags and filter materials have reached the leading level in Guangdong Province in terms of technological advancement and environmental adaptability, laying a solid foundation for the products to enter the global market.​

We give priority to using recyclable materials such as degradable PE film, recycled corrugated paper and renewable non-woven fabric, which can be naturally degraded or recycled, reducing packaging waste and carbon emissions. Our packaging production process adopts energy-saving and emission-reduction technologies, and we have passed the EcoVadis sustainable development certification, which fully reflects our commitment to environmental protection. For foreign customers who pay attention to green environmental protection, we can also provide environmentally friendly packaging solutions customized according to their needs.

For urgent orders, we provide emergency shipping services such as air freight and express delivery, which can ensure that goods arrive at the destination within 3-7 days; for regular orders, we strictly control the production and shipping cycle, and the shipping time to major global regions is stable: 18-25 days to Europe and America, 5-10 days to Southeast Asia, and 20-30 days to Oceania. We have a professional logistics team to track the shipping progress in real time, ensuring that foreign customers can grasp the arrival time accurately and arrange follow-up work in advance.

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