SC series-Structural Framework for Industrial Filter Bags
The Dust Collector Bag Cage (also known as a filter bag cage or dust catcher cage) is the critical internal structural skeleton designed to hold and stabilize fabric filter bags inside industrial baghouse dust collectors. Without this rigid framework, the filter bag would collapse inward under the vacuum pressure of the gas stream during filtration or deform catastrophically during the aggressive high-pressure bursts of pulse-jet cleaning.
Manufactured by Hebei OuTai Environmental Protection Equipment Co., Ltd. (Senotay), these cages are engineered with high precision to provide an absolutely smooth, burr-free exterior, ensuring the delicate fabric of the filter bag is never abraded or punctured during operation.
Featured Model Configurations
SC-505 | High-Heat Silicone Coated Cage
Vertical Wires: 16 | Cage Shape: Round | Surface Coating: Silicone Coated
Coated with high-temperature silicone to protect the steel core from acid gases in boilers and incineration plants.
SC-606 | Deep Baghouse Multi-Section Cage
Vertical Wires: 18 | Cage Shape: Multi-Section | Surface Coating: Galvanized
Designed for very long filter bags (often exceeding 6 meters) featuring a segmented joint-lock design for easy installation in tight overhead spaces.
SC-1010 | Extreme Environment SS316 Cage
Vertical Wires: 24 | Cage Shape: Round | Material: SS316 Stainless Steel
The ultimate heavy-duty cage for extreme corrosive and high-temperature (up to 450°C) environments in chemical processing and petrochemical refining.

Why Choose SENOTAY Dust Collector Bag Cages
Choose SENOTAY Dust Collector Bag Cages if you need a durable, precision-welded internal support skeleton that prevents filter bag collapse and mechanical wear across high-pressure, high-temperature baghouse systems.
Burr-Free Automatic Mold Welding: One-time automatic welding creates smooth, seamless joint surfaces free of sharp burrs, preventing abrasive fabric wear and premature tearing during pulse-jet cleaning.
Environment-Matched Materials: Available in Carbon Steel (rated to 250°C), 304 Stainless Steel (rated to 400°C), and 316 Stainless Steel (rated to 450°C) to handle extreme heat and aggressive chemicals without over-specifying costs.
Tailored Structural Configurations: Customizable with 8 to 24 vertical wires, 150–200 mm support ring spacing, integrated venturi tubes, and diverse shapes (round, oval, flat, trapezoidal, envelope) for any baghouse footprint.
Corrosion-Resistant Surface Coatings: Options include galvanization, epoxy/plastic spraying, and organosilicone spraying to withstand acidic, moist, or chemically corrosive flue gas streams.
High Rigidity & Pressure Tolerance: Tested to withstand gas pressure differentials exceeding 15,000 Pa without bending, twisting, or structural deformation during continuous operation.
Why Leading Plants Choose SENOTAY Dust Collector Bag Cage
Factory-Direct Pricing. Certified Quality. Dedicated Support.
Best Price Guarantee
Certified & Compliant
Fast, Reliable Delivery
Comprehensive After-Sales Support
Lifetime Technical Support: Engineering consultations covering precise wire configuration counts (8, 10, 12, or 24 vertical wires), venturi integration, and specialized joint lock designs (split, claw, or slide connections).
Full System/Parts Availability: Seamless access to matching industrial filtration hardware, including custom-fit top venturis, bottom caps, and integrated pulse jet valves.
Remote Troubleshooting: Rapid technical assistance for diagnosing complex field issues, including structural cage deformation, localized abrasive bag wear, or coating degradation under acidic gas environments.
Trusted by industrial environmental equipment and air filtration plants worldwide. Ready for yours.
Main Features and Properties of Dust Collector Bag Cage
Feature | Description |
Material Options | Carbon Steel Wire, 304 Stainless Steel, 316 Stainless Steel |
Surface Treatment | Galvanization, Plastic Spraying, Silicone Coating |
Vertical Steel Wires | 8–24 Lines (Customizable) |
Support Ring Spacing | 150–200 mm |
Wire Diameter | 3.0 – 4.0 mm |
Length Range | 400 mm to 10,0000 mm (Customizable) |
Structure Options | Multi-section, Venturi Tube, Quick Plug, Chuck Type |
Shape Options | Round, Trapezoidal, Flat, Oval, Pleated, Diamond Type |
Specification of Dust Collector Bag Cage
Parameter | Specification(s) | Standard / Test | Application Range | Notes |
Material Options | Carbon Steel, 304 SS, 316 SS | Material certification | Application specific | Selection based on environment |
Vertical Wire Count | 8-24 lines | Visual inspection | Custom configurations | Higher counts for larger bags |
Support Ring Spacing | 150-200mm | ISO 2768 | 100-250mm | Optimized for cleaning efficiency |
Support Ring Diameter | φ3.0-Φ4.0mm | ISO 2768 | Material dependent | Larger for high-stress applications |
Vertical Wire Diameter | Φ3.5-Φ4.0mm | ISO 2768 | 3.0-5.0mm | Selection based on bag size |
Surface Treatment | Galvanized, Plastic spray, Silicone spray | ASTM B117 | Custom treatments | Based on corrosion requirements |
Maximum Operating Temp | Carbon Steel: 250°C | ASTM D5587 | 304 SS: 400°C, 316 SS: 450°C | Surface treatment dependent |
Structural Load Capacity | >15,000 Pa | Internal test | Application specific | Tested at maximum operating temp |
Dimensional Tolerance | ±0.5mm | ISO 2768 | Critical for proper fit | Verified with laser measurement |
Service Life | >3 years | Field performance data | 2-5 years | Environment and maintenance |
Product name | Dust catcher bag cage |
Material | Carbon Steel Wire | 304 stainless steel | 316 stainless steel |
Surface treatment process | Galvanized | Plastic spraying | silicone spraying |
vertical steel wires Qty | 8~24line |
Support ring spacing | 150~200mm |
Support ring diameter | φ3.0mm | φ3.2mm | φ3.4mm | φ3.6mm | φ3.8mm | Φ4.0mm |
Vertical steel wire diameter | Φ3.5mm | φ3.8mm | Φ4.0mm |
Cage length can be customized | 400-100000mm |
Venturi tube | With/without
|

Features of Dust Collector Bag Cage
Structure: bag cage usually consists of header cover, protective sleeve, frame longitudinal inner bar, frame longitudinal outer bar and bottom cover, etc. It has different structural forms such as multi-section type, ventilator or protection short tube, down-unloading type, plug-in type and chuck type.
Characteristics: The bag cage has enough strength and rigidity to withstand the gas pressure of the filter bag in the state of filtration and soot removal, and prevent deformation during transport and installation.
Surface Treatment:
The surface treatment includes galvanisation, plastic spraying, organosilicon spraying, etc. to enhance the corrosion resistance, acid and alkali resistance of the bag cage and prolong the service life.
Specification and shape:
Specification: The diameter of bag cage is usually between 100cm and 200cm, and can be customised according to customer requirements.
Shape: Common shapes include round, trapezoidal, oval, pleated, flat, rhombic envelope type, multi-section type, and so on.
Application areas:
Dust collector bag cage is widely used in electric power, iron and steel, chemical industry, coking, coal mining, non-ferrous smelting and other industries for dust removal treatment of various industrial exhaust gases.
Use life:
Under normal use and maintenance conditions, the service life of dust collector bag cage is generally up to more than 3 years.
In short, the dust collector bag cage is an indispensable accessory in the bag filter, and its quality directly affects the dust removal effect and the service life of the filter bag.
Dust Collector Bag Cage – Product types
Model Code | Vertical Wires | Surface Coating | Cage Shape | Service Life (Years) |
SC-101 | 8 | Galvanized | Round | 3–4 |
SC-202 | 10 | Plastic Coated | Oval | 3–5 |
SC-303 | 12 | Epoxy Coated | Trapezoidal | 4 |
SC-404 | 14 | SS Polished | Flat | 5 |
SC-505 | 16 | Silicone Coated | Round | 5–6 |
SC-606 | 18 | Galvanized | Multi-section | 5 |
SC-707 | 20 | Zinc-Plated | Pleated | 6 |
SC-808 | 22 | Dual Coated | Diamond | 6–7 |
SC-909 | 24 | SS304 | Flat | 7 |
SC-1010 | 24 | SS316 | Round | 8–10
|
Technical Advantages in Manufacturing Dust Collector Bag Cage
At Senotay our well prepared cutting-edge engineering and precision manufacturing ensure every dust collector filter cage meets international standards for performance, durability and compatibility.
Our Key Technical Advantages:
Advanced Welding Technology:Our One-time automatic mold welding ensures surface smoothness and no burrs that could damage bags.
High Strength & Rigidity: In our specialized lab we Verified load-bearing tests ensure no deformation during operation or transportation.
Surface Protection: It is Multi-layer galvanization and silicone coatings enhance corrosion and oxidation resistance.
Customized Engineering: Products Shapes, diameters and venturi designs can be tailored to any baghouse system.
Quality Assurance System: Each cage undergoes visual inspection, dimensional testing, and coating verification.
This level of manufacturing precision makes Senotay a trusted global filter cage manufacturer.
Why We’re Hebei OuTai Environmental Protection Equipment Co., Ltd.(Senotay)
Choosing Senotay means partnering with one of the leading global filter cage manufacturers known for reliability, innovation, and value.
1. in this industry w have Over 15 years of experience in baghouse component manufacturing.
2. Customizable cage designs for all major dust collector models..
3.In-house fabrication, coating, and inspection facilities.
4.our every product is ISO-certified quality control.
5.we have team s for Fast global delivery and technical support.
Senotay provides both standard and custom-engineered dust collector cages which is ensuring perfect compatibility with your existing filtration systems.
▪ Dust Filter Bag
▪ Polyester Filter Bag | FMS Filter Bag | Basalt Filter Bag | Nomex Filter Bag |
PTFE Filter Bag | Acrylic Filter Bag | Fiberglass Filter Bag | P84 Filter Bag | PPS Filter Bag
▪ Dust Collector Bag Cage
▪ Dust Collector Bag Cage | Galvanized Bag Cage | Silicone Bag Cage | Trapezoidal Bag Cage | Envelope Bag Cage | Cage Venturi Tube
▪ Dust filter element
▪ Air Filter Element | Top-mounted Dust Filter Element | Oblique-insert Dust Filter Element |
Lifting Dust Filter Element | Six-Ear Quick-release Dust Filter Element | Threaded Dust Filter Element | Flange Dust Filter Element
▪ Electromagnetic pulse valve
▪ DMF-Z Right Angle Solenoid Pulse Valve | DMF-Y Submerged Electromagnetic Pulse Valve
▪ Industrial Electric Precipitation Accessories
▪ Cathode Wire | Dust Collecting Plate | Vibrating Hammer | Bearing In Dust | Electrostatic Precipitator Porcelain Sleeve
FAQs About Dust Collector Filter Cages
Q1: What’s the role of a dust collector cage?
A: It supports the filter bag that is keeping it from collapsing and ensuring proper filtration and airflow within the baghouse system.
Q2: Can Senotay cages fit my existing bags?
A: Obviously Yes, we design cages to fit all major industrial filter bag standards or can customize dimensions as per your system drawings.
Q3: What coating should I choose?
A: For dry environments, use galvanized cages; for corrosive or humid conditions, plastic or organosilicon coatings are recommended.
Q4: How long does a filter cage last?
A: Typically 3–6 years that is always depending on working conditions and coating type.
Q5: How are your products tested?
A: Every cage passes through dimensional accuracy checks, welding inspection and coating thickness tests for consistent quality.
Q6: Do you provide OEM/ODM service?
A: yes we do. Senotay supports custom cage solutions for different baghouse models and dust collector brands.