The dust filter cage is a core accessory of bag-type dust collectors, widely applied in industrial dust removal scenarios like woodworking and spray painting. Made of carbon steel, stainless steel or corrosion-resistant coated materials, it provides rigid support for filter bags, preventing bag collapse under airflow pressure. It ensures unobstructed air circulation, maintains stable filtration performance, and extends filter bag service life. Featuring simple structure, easy installation and high durability, it is a key component to improve the overall efficiency of dust removal systems.
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The Corrosion-Resistant Dust Filter Cage is a high-performance dust collection component designed for spray painting workshops, manufactured by Botou Xintian Environmental Protection Equipment Co., Ltd.—an ISO9001-certified enterprise specializing in environmental protection equipment. This Spray Painting Dust Filter Cage features a corrosion-resistant coating and high-strength structure, perfectly matching filter bags to capture paint mist and dust efficiently. It solves the problem of filter cage corrosion and deformation in humid, paint-rich environments, ensuring long-term stable operation of dust collection systems. As a premium Anti-Corrosion Paint Shop Filter Cage, it is favored by B-end customers in automotive, furniture, and metal coating industries for its durability and compatibility.

The filter cage is treated with electrophoretic painting + powder coating, forming a double anti-corrosion layer with a thickness of ≥80 μm. This layer resists corrosion from paint solvents, humidity, and chemical agents, ensuring no rust or peeling even in harsh spray painting environments. The coating meets international environmental standards, with no harmful substance emissions.
Adopting robot welding technology, the filter cage’s vertical and horizontal wires are welded firmly, with a tensile strength of ≥350 MPa. The reasonable spacing of vertical wires (10-20 mm) ensures the filter bag’s stability, preventing deformation or damage during filtration and ash cleaning. The open-top and bottom designs enhance air circulation and dust discharge efficiency.
Precision machining ensures the filter cage’s diameter tolerance is ≤±0.5 mm, achieving a tight fit with various filter bags (e.g., polyester, PTFE). This compatibility maximizes filtration efficiency, reduces air leakage, and extends the service life of filter bags by 20%.
Made of high-quality low-carbon steel, the filter cage is lightweight (5-15 kg) while maintaining strength, making installation and replacement quick and labor-saving. The standardized design allows for batch replacement, reducing maintenance time and costs for B-end customers.
Parameter | Specification |
Model | XTCF-D28/XTCF-D16 |
Diameter | 110-160 mm |
Length | 1000-6000 mm |
Number of Vertical Wires | 8-16 pcs |
Wire Diameter | Vertical: 3.0-4.0 mm; Horizontal: 2.0-2.5 mm |
Coating Type | Electrophoretic painting + powder coating |
Material (Base Metal) | Low-carbon steel Q235 |
Tensile Strength | ≥350 MPa |
Coating Thickness | ≥80 μm |
Installation Type | Top-mounted / Bottom-mounted |
Suitable for dust collection systems in automotive body painting lines, capturing paint mist and dust generated during pre-treatment and topcoat processes. The anti-corrosion design adapts to the humid environment of spray booths.
Ideal for filtering paint mist from wooden furniture, doors, and windows. It prevents paint particles from adhering to the filter cage, ensuring continuous operation of dust collection equipment.
Applied in spray coating of metal sheets, hardware, and electrical components. The high-strength structure withstands frequent ash cleaning (pulse jet cleaning), maintaining stable performance.
Widely used in coating processes of appliances, medical equipment, and mechanical parts. The compatible design matches various filter bags, meeting different filtration requirements.
We offer flexible customization to adapt to diverse B-end production needs:
Size Customization: Diameter (110-160 mm) and length (1000-6000 mm) can be tailored to match filter bags and dust collector specifications.
Coating Customization: Optional anti-static coating or high-temperature coating (up to 260℃) for special working environments.
Wire Specification Customization: Adjust wire diameter and number of vertical wires based on filter bag type and working pressure.
End Plate Customization: Customize end plate material (steel plate or aluminum alloy) and hole pattern to match dust collector installation requirements.
Our filter cages are produced using advanced robot welding workstations, ensuring uniform welds, high structural strength, and consistent product quality. The strict quality control process eliminates defective products.
Each filter cage is marked with a unique serial number, enabling full-process quality traceability. We adhere to ISO9001 standards, from raw material procurement to finished product delivery, ensuring reliable performance.
Beyond providing filter cages, we offer integrated solutions including dust collector matching, filter bag selection, and system optimization, helping B-end customers improve overall dust collection efficiency and reduce costs.
The double anti-corrosion coating and high-strength structure extend the filter cage’s service life to 3-5 years, reducing replacement frequency and total ownership costs. Our direct sales model eliminates intermediaries, offering competitive prices for B-end customers.