Dust Collector Filter Bag
- High-Efficiency Filtration Accuracy
- Exceptional Temperature Resistance
- Extended Service Life
- Energy-Saving & Low-Pressure Drop Operation
- Superior Chemical Corrosion Resistance
- Smart Monitoring Compatibility
Industry-Leading Dust Collector Filter Bag Manufacturer
As a leading filter bag manufacturer, DARKO brings over 10 years of expertise in industrial dust filtration. Our ISO-certified filter media, exported to 30+ countries, deliver reliable solutions for cement kilns, metallurgical furnaces, chemical plants, and lithium battery production – combining high-efficiency capture rates with smart monitoring compatibility.
Working Principle of Filter Bags
Filter bags function through surface filtration and depth filtration: Dust particles are initially captured on the fabric surface (forming a dust cake), while finer particles (including PM2.5) are trapped within the fiber matrix. The purified air passes through the bag’s pores, achieving >99% efficiency in industrial applications. Key factors include material properties (e.g., PPS/PTFE fibers) and pore structure optimization.
Mounted vertically on wire cages, the bags maintain structural stability during pulse-jet cleaning (0.6-0.8MPa). The cages ensure uniform dust cake shedding, while the bag’s cylindrical design maximizes filtration area. This synergy enables continuous operation with controlled pressure drop (<1500Pa) and extended service life (2-4 years in cement plants).
Professional Filter Bag Material Selection
Industrial environments require specific filter bag materials. We offer various high-performance options including PTFE, PPS, Nomex®, and more, engineered for demanding conditions like high temperature, humidity, and corrosion. Select the right material for your application:
Ultimate chemical resistance (handles all acids/alkalis) with 260°C continuous operation.
Excellent oxidation resistance at 190°C, ideal for coal-fired power plant FGD systems.
Cost-effective workhorse for temperatures below 130°C with 99.5% efficiency.
Low-pressure operation (<800Pa) with 240°C rating, perfect for sticky/humid dust.
General-purpose aramid for 200°C services with exceptional abrasion resistance.
Chinese-made PTFE membrane filters capturing 99.99% of PM2.5 particles.
Withstands 280°C continuously (320°C peak), essential for metallurgy/glass industries.
Superior moisture resistance for biomass boilers and high-humidity gases.
Advantages of Industrial Dust Collector Bags
High-efficiency dust filter bags capture 99.9% of particles, withstand extreme temperatures, reduce energy costs, and last 40% longer than standard filters.
Multi-layered fine fiber structure captures particles as small as 0.3μm with 99.9% efficiency.
Special materials (e.g., PTFE-coated, fiberglass) withstand up to 260°C and resist chemical corrosion for harsh environments.
Optimized airflow design reduces system pressure drop, lowering energy consumption.
Reinforced stitching + wear-resistant coating increases lifespan by 40%+ compared to standard filter bags.
Available in polyester, Nomex, PTFE-coated, and more to suit different dust types.
Smooth surface treatment prevents clogging and reduces cleaning frequency.
Optional anti-static treatment minimizes explosion risks, complying with ATEX standards.
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Our Service Process
Our end-to-end service ensures high-efficiency dust collection systems with reliable performance and fast technical support.
We analyze your production requirements to provide customized equipment selection ensuring perfect system compatibility.
Our senior engineers create personalized solutions with optimized system configuration based on your specifications.
Detailed pricing covering equipment, installation, shipping and after-sales service with no hidden costs.
Strict quality control at our ISO-certified factory guarantees reliable equipment performance.
Dedicated logistics team ensures on-time delivery with complete installation guidance and training.
24/7 technical support with scheduled maintenance alerts and fast spare parts delivery.
What is a Filter Bag?
A filter bag (or dust filter bag) is a critical component in industrial dust collection systems, designed to capture and remove particulate matter from air or gas streams. These fabric filters are installed inside baghouses (dust collectors) and act as high-efficiency barriers, trapping dust while allowing clean air to pass through.
Own Factory, High Quality Manufacturing Power
As a professional cement equipment manufacturer with 10 years of industry experience, Darko combines innovative engineering with reliable production capabilities. Our ISO-certified facility produces 400+ dust collection systems and 450+ conveying systems annually, serving 500+ global clients with complete solutions from cement silos to dust control systems.
Backed by patented technologies and an experienced R&D team, we specialize in customized, non-standard designs to meet diverse project requirements. Equipped with advanced manufacturing facilities and strict quality control, we ensure every product meets the highest international standards while delivering cost-effective, environmentally friendly solutions for cement plants and industrial applications worldwide.
Related Product
As a leading manufacturer of dust removal solutions for cement plants, we provide complete dust collection systems to optimize your production line. In addition to high-efficiency filter bags, you can also choose from our other products:
Engineered with premium filter bags for 99.9% filtration efficiency, ideal for high-volume, fine particulate applications in cement, metallurgy, and other industries. Features stable operation and easy maintenance.
Specifically designed for combustible dust environments with integrated explosion-proof devices and pressure relief systems, compliant with ATEX standards. Perfect for chemical, pharmaceutical, and metalworking industries.
Incorporating advanced pulse-jet cleaning technology for automatic filter maintenance and continuous high-efficiency operation. Offers large air volume capacity with low energy consumption, making it ideal for woodworking and food processing applications.
Utilizing centrifugal separation principle to effectively remove large particulate matter. Can serve as pre-filters or standalone units with simple structure, no consumables, and low operating costs – excellent for primary dust collection needs.
More about Dust Collector Filter Bag
By fully understanding the relevant technical parameters and structural technology of the dust collector filter bag, you will have a clearer understanding of the performance advantages and application value of the product.
- Technical Specifications
- Structure
- Industrial Applications
- Classification
| Parameter | Specification |
|---|---|
| Material Options | Polyester (PES), Nomex, Fiberglass (PTFE coated) |
| Filtration Accuracy | 0.1-200μm selectable |
| Air Permeability | 5-15m³/m²/min |
| Grammage | 300-800g/m² |
| Compatible Equipment | Pulse-jet baghouse, Reverse-air dust collector, Mechanical shaker |
| Bag Top Design | Applicable Dust Collector Type |
|---|---|
| Snap Ring Top | Pulse-jet Baghouse (Top-access) |
| Compartment Reverse-air (Cap Type) | |
| Tied Top | Pulse-jet Baghouse (Top/Bottom-access) |
| Wire Ring Top | Pulse-jet Baghouse |
| Rotary Reverse-air Baghouse | |
| Rope Tied Top | Compartment Reverse-air Baghouse |
| Gasket Sealed Top | Side-access Baghouse |
| Lifting Lug Top | Mechanical Shaker Baghouse |
| Compartment Reverse-air Baghouse |
Power Generation: Coal-fired boiler flue gas treatment
Steel & Metallurgy: Blast furnace gas purification, converter dedusting
Cement Production: Kiln inlet/outlet dust collection, coal mill systems
Chemical & Pharma: Powder recovery, process gas purification
Food Processing: Food-grade dust collection (flour, sugar, etc.)
By Cross-Section Shape:
Flat bags (trapezoidal & rectangular)
Round bags (cylindrical)
By Airflow Direction:
Bottom inlet, top outlet
Top inlet, bottom outlet
Straight-through flow (only for flat panel bags)
By Filtration Method:
Outside-in filtration
Inside-out filtration
By Temperature Resistance:
High-temperature type
Medium-temperature type
Normal-temperature type
Application Fields:
Ironworks, steel plants, ferroalloy plants, refractory plants, foundries, power plants, cement plants, chemical plants, grain processing plants, carbon black plants, aluminum plants, etc.(1) Low-Temperature Type:
Suitable for dust collection at raw material mills, cement mills, silo tops/bottoms, etc.
Requires oil-repellent & waterproof surface treatment for high-humidity conditions.
(2) Normal/High-Temperature Type:
Suitable for high-temperature exhaust gas treatment (e.g., cement kilns, cooler systems, dryers).
Requires oil-repellent & waterproof surface treatment for high-temperature & high-humidity conditions.
Typically 18-36 months, depending on dust load, moisture, and cleaning frequency.
PTFE-coated fiberglass (up to 260°C) or Nomex® (up to 190°C).
Yes, we provide conductive filter bags for combustible dust (ATEX compliant).
Related Product
High-efficiency grinding withadjustable fineness, ideal forcement production.
How to Choose Dust Filter Bags? 5 Key Selection Factors
Selecting the right dust filter bag directly impacts equipment efficiency, energy consumption, and maintenance costs. Here’s a professional guide to help you make the optimal choice:
1. Select Based on Dust Characteristics
| Dust Type | Recommended Material | Special Treatment |
|---|---|---|
| General cement/lime dust | Polyester (PES) | Water/oil repellent coating |
| High-temperature flue gas | Fiberglass + PTFE membrane | Acid-resistant treatment |
| Metal grinding dust | Anti-static polyester | Conductive fiber weaving |
| Sticky dust (coal tar) | Smooth-surface filter bags | Nano anti-stick coating |
| Corrosive chemical dust | PPS or PTFE fibers | Acid/alkali-resistant treatment |
2. Select Based on Temperature Range
Normal temp. (<130°C): Polyester, polypropylene (cost-effective)
Medium temp. (130-190°C): Nomex®, P84® (oxidation-resistant)
High temp. (190-260°C): Fiberglass + PTFE membrane (avoid mechanical abrasion)
Ultra-high temp. (>260°C): Metal fiber felt (custom for special conditions)
Note: Peak instantaneous temperature must not exceed 120% of the material limit!
3. Match with Dust Collector Type
| Dust Collector Type | Suitable Bag Structure | Cleaning Features |
|---|---|---|
| Pulse-jet | Round bags with metal rings | Requires high-strength stitching |
| Reverse-air | Soft bags without support rings | Needs good flexibility |
| Mechanical shaker | Bags with bottom weights | Requires fatigue-resistant material |
| Side-access | Flat panel bags | Requires stiffness to maintain shape |
4. Select Based on Emission Standards
China GB/T 6719: Standard polyester bags (emission ≤30mg/m³)
Ultra-low emission: PTFE membrane bags (emission ≤10mg/m³)
EU EN 779: Requires efficiency test reports
Food/pharmaceutical grade: FDA-certified polyester bags