Space-Optimizing Structural Support: The SENOTAY Trapezoidal Bag Cage
SENOTAY trapezoidal bag cages are engineered specifically for flat-bag and oval-bag pulse jet dust collectors, maximizing filtration surface area within tight footprint constraints. The precise flat-sided design maintains uniform fabric tension and prevents bag-to-bag contact during high-pressure cleaning cycles. This structural precision completely eliminates dead zones, lowers internal resistance, and ensures stable, high-volume airflow in compact industrial baghouses.
Why Leading Plants Choose SENOTAY:
Factory-Direct Pricing. Certified Quality. Dedicated Support.
Best Price Guarantee
Certified & Compliant
Manufactured in an ISO 9001 certified facility with full CE compliance, our trapezoidal cages feature tight dimensional tolerances and 100% burr-free automated spot welds. Available in galvanized steel, organic silicone coatings, or premium stainless steel to ensure maximum operational safety.
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Comprehensive After-Sales Support
Lifetime Technical Support: Expert engineering consultations for profile optimization, precise pitch alignment, and custom venturi integrations.
Full System/Parts Availability: Seamless factory access to matching flat-bag hardware, including raw envelope filter bags, top snap bands, and pulse valves.
Remote Troubleshooting: Fast diagnostics for field issues like flat-side mechanical deflection, localized corner wear, or shifting differential pressure.
Trusted by industrial environmental equipment and air filtration plants worldwide. Ready for yours.
Material Properties of Trapezoidal Bag Cage
Base Materials: The base matrials are Carbon steel, mild steel and stainless steel (304 / 316L).
Surface Treatment: Its surface is Galvanized, epoxy-coated, silicone-coated or powder-coated
Temperature Resistance: It is Up to 300°C that’s depending on coating type.
Corrosion Resistance: completely Excellent under humid, acidic, or alkaline gas environments.
Welding Type: Automatic spot welding for high strength and precision.
Customization: Available in various lengths, diameters, and wire thicknesses.
Types of Trapezoidal Bag Cage
Type No. | Material | Surface Coating | Connection Type | Operating Temp (°C) |
TBC-01 | Carbon steel | Hot-dip galvanized | Flange | 250 |
TBC-02 | Stainless steel 304 | Natural finish | Thread | 350 |
TBC-03 | Alloy steel | Silicone coated | Snap ring | 300 |
TBC-04 | Mild steel | Powder-coated | Clamp | 280 |
TBC-05 | Galvanized | Zinc plating | Venturi connection | 300 |
TBC-06 | Reinforced steel | Double coating | Flange lock | 330 |
TBC-07 | Stainless steel 316 | Acid-resistant | Quick release | 360 |
TBC-08 | Electro-galvanized steel | Bright finish | Collar | 260 |
TBC-09 | Carbon steel | Hybrid silicon coat | Welded | 320 |
TBC-10 | Custom alloy | Custom finish | Customized | 350 |
Specifications Table
Cage Length (mm) | Top Diameter (mm) | Bottom Width (mm) | Coating Type |
2000 | 150 | 120 | Galvanized |
2500 | 160 | 130 | Epoxy powder |
3000 | 180 | 140 | Silicone coat |
3500 | 190 | 150 | Hot-dip zinc |
4000 | 200 | 160 | Fluorocarbon coat |
4500 | 210 | 170 | Bright zinc |
5000 | 220 | 180 | Custom |
5500 | 230 | 185 | Powder coated |
6000 | 250 | 190 | Anti-rust zinc |
Custom | Custom | Custom | Custom |
Main Features of Trapezoidal Bag Cage
Its Compact trapezoidal structural design for efficient space utilization.
Fewer vertical and horizontal bars ensuring better gas flow and minimal friction on bag surface.
It is Enhanced stability and structural strength compared to round cages.
Custom sizes, coatings and connections for various dust collector configurations.
Smooth and seamless welds to reduce bag wear during pulsing or shaking operations.
Adaptable to both pulse-jet and reverse-air cleaning systems.
Technical Advantages in Manufacturing Trapezoidal Bag Cage at Senotay
As a top Trapezoidal Bag Cage manufacturer in China, Senotay integrates advanced production technology with stringent quality management standards to guarantee performance, precision, and durability.
CNC-controlled Welding Systems: precision joints with zero deformation.
High-performance Surface Treatments: electrostatic powder coating, galvanized or silicone finishes.
Customization Excellence: adjustable wire counts, venturi configurations, and joint types.
In-house R&D for Design Optimization: minimized airflow resistance and enhanced dust removal efficiency.
ISO-Certified Quality Standards: ensuring complete reliability and long-term performance.
Why the Trapezoidal Bag Cage is Unique Compared to Other Bag Cages
The Trapezoidal Bag Cage offers a flat-sided geometry thats which improves dust dislodging efficiency and increases the effective filter bag area. The trapezoidal frame allows for tighter filter cartridge arrangements that is reducing system bulk while maintaining airflow capacity.
Additionally, this design reduces stress points on the filter fabric that preventing bag breakage during reverse pulse cleaning which making it a durable, energy-efficient and space-optimized alternative to circular or oval bag cages.
Why It’s Important to Have a Trapezoidal Bag Cage in Your Industry
Improves Dust Removal Efficiency: Better air circulation reduces system pressure drops.
Extends Bag Life: Minimizes mechanical wear on filter media.
Maximizes Space Utilization: Ideal for compact dust collector units.
Reduces Maintenance Costs: Strong anti-corrosion and easy to clean.
Ensures System Stability: Uniform support structure reduces bag collapse risk.
By choosing Senotay’s Trapezoidal Bag Cage, industries achieve sustainable air pollution control and longer-term operational savings.
Physical and Mechanical Properties of Trapezoidal Bag Cage
Tensile Strength: ≥ 340 Mpa.
Wire Diameter: 2.8–5.0 mm.
Weld Integrity: 100% fusion checked.
Thermal Resistance: Up to 350°C.
Corrosion Resistance Test: ≥ 500 hours (salt spray test).
Dimensional Tolerance: ±1 mm.
Hardness: 60–75 HRB.
Applications of Trapezoidal Bag Cage
Trapezoidal filter bag cages are essential components in dust collection and air filtration systems across diverse industries:
Cement and Concrete Plants.
Steel Mills and Foundries.
Chemical and Petrochemical Industries.
Thermal Power and Biomass Plants.
Mining and Quarrying Operations.
Pharmaceutical and Food Industries.
Woodworking and Furniture Production.
Waste Incineration and Recycling Plants.
▪ 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 Trapezoidal Bag Cage
Q1: What is the main benefit of trapezoidal design compared to circular bag cages?
Answer: The trapezoidal shape increases the filtration area which improves dust removal efficiency and reduces mechanical stress on filter bags.
Q2: What materials are available for manufacturing the Trapezoidal Bag Cage?
Answer: We offer carbon steel, galvanized steel, stainless steel 304/316 and customized alloys based on your application.
Q3: Can you manufacture custom sizes or configurations?
Answer:yes Absolutely, We specialize in custom bag cage manufacturing for different dust collector models and bag specifications.
Q4: How long does a Trapezoidal Bag Cage last?
Answer: With proper care and use, Senotay cages last up to 8–10 years which depending on operating environment and cleaning frequency.
Q5: Is the cage suitable for high-temperature applications?
Answer: Yes It is ,Our silicone and powder-coated cages perform well up to 350°C in continuous use.