Pre-Project Technical Support
- Baghouse operating condition assessment
- Filter media recommendation
- Sample testing & trial installation
Industrial Dust Filter Bags
Omela Baghouse Dust Filter Bags
1. What Is a Dust Filter Bag?
A dust filter bag is a high-performance textile element used inside a baghouse dust collector to separate fine particulate from industrial process air. As dirty gas flows through the filter media, dust forms a stable “dust cake” on the surface, which performs the actual filtration.
The combination of filter media properties, air-to-cloth ratio, operating temperature, chemical composition, and cleaning method determines how well the filter bag performs.
- Dust-laden air passes through the filter bag.
- Particulate accumulates on the surface, forming a filtration layer.
- Clean air exits the baghouse
- Pulse jet or reverse-air cleaning periodically removes excess dust cake.
A well-engineered filter bag ensures:
- Low pressure drop
- High filtration efficiency
- Stable system operation
- Extended service life
Industrial dust filtration relies heavily on well-designed, properly selected, and precisely manufactured dust filter bags. As the core component of a baghouse system, filter bags directly determine dust collection efficiency, emission levels, energy consumption, and overall system stability.
60%
Annual Cost Reduction
Better filtration performance directly lowers total operating cost (TOC) year-over-year from Omela.
2. Types of Dust Filter Bags
High temperature dust filter bags
Aramid(Nomex) Filter Bag
Aramid dust filter bags – often referred to in the market as Nomex® bags – are designed for medium to high temperature baghouses
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P84 Filter Bag
P84 filter bags are high-temperature pulse-jet bags made from P84 polyimide needle felt.
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Fiberglass Filter Bag
LFiberglass filter bags are built for one thing: staying stable when the gas stream is hot, dusty and unforgiving.Unlike organic fibers
View DetailsMiddle temperature dust filter bags
PTFE(Teflon) Filter Bag
PTFE dust filter bags—often known in the market as Teflon® filter bags—represent the highest tier of performance in industrial filtration.
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PPS Filter Bag
PPS dust filter bags are engineered for demanding industrial processes where hot, chemically aggressive flue gases quickly destroy conventional filter media.
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FMS Filter Bag
FMS filter bags are developed for processes where heat, abrasion, and corrosive gas chemistry converge
View DetailsNormal temperature dust filter bags
Acrylic Filter Bag
Acrylic filter bags are engineered for industrial dust-collection systems that require strong moisture resistance
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Polyester Filter Bag
Polyester filter bags — crafted from high-quality polyester needle-felt — remain the industry’s most widely used filter media
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Metamax Filter Bag
Metamax filter bags — engineered from a proprietary blend of P84 polyimide fibers.
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Pleated(Star) Filter Bags
Pleated filter bags are engineered to upgrade traditional baghouse performance by combining the surface area
View Details3. Filter Bag Material Performance Comparison Table
| Material | Working Temperature | Instant Temperature | Abrasion Resistance | Hydrolysis Resistance | Acid Resistance | Alkali Resistance | Oxidation Resistance | Relative Cost |
|---|---|---|---|---|---|---|---|---|
| Polypropylene Needle Felt | 90°C | 110°C | Good | Excellent | Excellent | Excellent | Middle | $ |
| Acrylic Needle Felt | 120°C | 130°C | Middle | Good | Good | Middle | Good | $$ |
| Polyester Needle Felt | 130°C | 150°C | Excellent | Poor | Middle | Fair | Good | $ |
| PPS Needle Felt | 180°C | 200°C | Good | Excellent | Excellent | Excellent | Fair | $$$ |
| Aramid Needle Felt | 204°C | 220°C | Good | Middle | Middle | Good | Middle | $$$ |
| P84 Needle Felt | 240°C | 260°C | Good | Middle | Middle | Middle | Good | $$$$ |
| PTFE Needle Felt | 250°C | 280°C | Good | Excellent | Excellent | Excellent | Excellent | $$$$ |
| Fiberglass Needle Felt | 250°C | 280°C | Fair | Good | Middle | Fair | Good | $$$ |
| Woven Fiberglass Filter Cloth | 260°C | 280°C | Good | Good | Good | Good | Good | $$$ |
INDUSTRIAL
APPLICATIONS
Filtration needs vary from one plant to another, but the goal is the same—stable operation and clean output. Our products are used across different industries with demanding working conditions.
Cement Plant
High dust load and rapid temperature changes make cement production a tough environment. Our filter bags, cages, and pulse-jet systems help maintain stable emission levels from kilns, mills, and clinker coolers.
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Waste-to-Energy
Waste-to-energy (WTE) plants face highly variable flue gas conditions due to inhomogeneous fuel quality.A well-designed baghouse system acts as the primary barrier for solid substances
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Power Plant
Coal-fired and biomass power stations require filtration materials that can tolerate high temperatures and fly ash. PPS, P84, and PTFE bags are often used in boilers, economizers, and dust collection units.
Read MoreDelivering Clean Air Performance Through Expertise and Dedication
95%
Filtration Efficiency
Based on performance comparison of PPS, Aramid, Fiberglass, and PTFE.
50%
Pressure Drop
Due to optimized media selection and air-to-cloth ratio.
Step-by-Step Process
4. Filter Bag Manufacturing Process
Manufacturing high-quality industrial filter bags requires precision, consistency, and strict quality control at every step.
From raw filter media preparation to final packaging, Omela’s production follows a standardized workflow to ensure durability, filtration performance, and compliance with demanding industrial standards.Each filter bag is crafted by skilled technicians using advanced equipment, ensuring excellent sealing, accurate dimensions, and long service life.
① Filter Media Cutting
Precisely cutting roll filter media using automated cutting machines to ensure accurate bag dimensions and consistent performance.
② Filter Bag Sewing
Sewing the bag body with reinforced stitching to ensure structural strength and resistance to mechanical stress.
③ Filter Bag Top Attaching
Attaching the bag’s top components such as snap band, flange, or steel ring to ensure perfect fit with the dust collector.
③ Liquid Filter Bag Top Attaching
Attaching the bag’s top components—such as plastic collar, steel ring, or flange—to ensure a secure, leak-free seal with the liquid filter housing.
④ Filter Bag Enhancing
Adding reinforcement layers, anti-wear patches, or protective components to improve durability in heavy-duty applications.
⑤ Filter Bag Bottom Attaching
Securing the bottom end (welded, sewn, or sealed) to ensure airtight performance and prevent dust leakage.
⑥ Filter Bag Seam Sealing
Applying thermal or ultrasonic sealing on stitch lines to increase filtration efficiency and eliminate needle-hole leakage.
⑦ Filter Bag Seam Taping
Adding heat-resistant sealing tape to critical seams for enhanced dust-tightness and long-term durability.
⑧ Filter Bag Inspection
Performing full inspection—including size measurement, tensile testing, stitching strength, and leak check—to guarantee product quality.
⑨ Filter Bag Packaging
Packing filter bags in clean, moisture-proof packaging to ensure safe transportation and contamination-free delivery.
5. Dust Filter Bag Selection Guide
01
Dust Properties
The characteristics of your dust determine the required filter media. Key factors: particle size, abrasiveness, chemistry, moisture/oil content, and operating temperature .
02
Filter Media Options
Each media offers different temperature, chemical, and mechanical performance. Common choices: Polyester, Polypropylene, Aramid, PPS, Fiberglass, PTFE.
03
Surface Finishes
Treatments that improve efficiency and extend service life: PTFE membrane, singed/glazed surface, calendering, anti-static, oil & water repellent .
04
Filter Bag Construction
Proper construction ensures efficiency and durability.Includes: top and bottom designs, stitching type, reinforcement, seam sealing/taping .
05
Air-to-Cloth Ratio
The A/C ratio affects airflow, bag life, and system performance. Choosing the right ratio reduces pressure drop, energy consumption, and extends filter life.
Dust Filter Bag Lifecycle Support Services
Custom Engineering Solutions
- Custom filter bag design（OEM/ODM）
- Filter media engineering
- Baghouse retrofit engineering
Production & Quality Assurance
- Automated cutting, sewing, sealing
- Multi-point quality inspection
- Compliance certifications
Installation & Commissioning
- Filter bag removal & replacement
- Cage installation & alignment
- Leak testing & performance verification
Operation Optimization
- Differential pressure optimization
- Bag cleaning cycle calibration
- Airflow balancing & gas distribution correction
Maintenance & Troubleshooting
- Filter bag failure analysis
- Baghouse maintenance package
- 24/7 after-sales support
LET’S WORK TOGETHER
Why Choose Omela Filtration?
Choosing the right filtration supplier affects everything from system stability to maintenance downtime. At Omela Filtration, we combine reliable materials, controlled production, and years of industry experience to support dust and liquid filtration needs across different plants and applications.
We use consistent-grade filter media, sewing thread and metals sourced from qualified suppliers. Each batch is checked for weight, thickness, air permeability and tensile strength to keep performance steady across shipments.
Our facility is equipped with modern sewing lines, hot-welding machines and automated inspection tools. This keeps production efficient and helps us meet tight delivery schedules, even on custom orders.
Our engineers and technicians have long experience with dust collectors, liquid systems and industry-specific conditions. They help you match materials to temperature, chemistry and air-to-cloth ratios to avoid unnecessary failures.
From sampling to documentation and shipping, our team responds quickly and keeps information clear. Customers in cement, asphalt, power and water-treatment plants rely on our service to resolve problems without delay.
From the first technical discussion to installation and long-term maintenance, our team stays involved at every stage. We analyze your operating conditions, adjust product designs when needed, and ensure the final filtration setup works reliably in real plant environments. After delivery, our service team continues to provide guidance and troubleshooting support, helping you keep your system stable and downtime low.
Frequest Asked Questions
Absolutely. We provide full OEM/ODM filter bag customization, including:
- Special shapes & non-standard sizes
- Custom logo or packaging printing
- Free sample production
- Support for on-site installation
This service helps clients developing new filtration systems or upgrading existing dust collectors.
Yes, we offer free samples for most standard materials and bag configurations.
For customized bags, we can produce a trial sample within a few days for performance and fit testing in your baghouse system.
We provide complete engineering support:
- A detailed baghouse condition questionnaire
- Technical recommendations for filter media selection (temperature, dust chemistry, humidity, abrasion level)
- Online engineer consultation
- On-site assessment (optional)
- Custom sample for testing
This ensures you choose the best filter bag solution for long-term performance.
Yes. Our team provides:
- On-site baghouse inspection
- Leak detection & troubleshooting
- Performance evaluation
- Pulse-jet system adjustment
- Filter bag cleaning & reconditioning
Proper maintenance extends filter bag life and improves dust collector efficiency.
We conduct strict testing and quality control, including:
- Filter media tensile strength test
- Air permeability testing
- Temperature & chemical resistance evaluation
- Seam strength & leakage inspection
- Final baghouse simulation test (when required)
Every filter bag is inspected before shipment to guarantee reliable performance.
Yes. Installation support is available through:
- Online video guidance
- Step-by-step installation manuals
- Engineer on-site service (for large projects)
- Training for your maintenance team
We ensure smooth and correct installation to avoid leakage or premature bag failure.
For common materials (PPS, PTFE, aramid, polyester, fiberglass), samples are normally ready within 3–5 days.
Standard bulk orders ship within 7–15 days, depending on quantity and customization level.
We provide full lifecycle service, including:
- Filter bag cleaning & reconditioning
- Bag-to-bag performance comparison
- Operating cost optimization
- Dust collector troubleshooting
- Scheduled filter bag change-out
This keeps your dust collection system running efficiently while reducing operational cost.
Trusted by Industries
Worldwide
With 20+ years of experience and 1000+ global clients, we deliver stable filtration performance and dependable dust-collector operation.