High-Temperature Meta-Aramid Filter Bags – Nomex® Filter Bag Equivalent
Our high-temperature meta-aramid filter bags are engineered for industrial dust collection under extreme heat conditions. These bags offer excellent thermal stability, abrasion resistance, and long service life. They are equivalent in performance to Nomex® filter bags.
As an experienced filter bag manufacturer, we provide custom solutions for various industries, including asphalt plants, cement kilns, steel mills, and foundries.
Properties of Nomex Filter Bags
- Heat Resistance：Nomex filter bags can withstand continuous operating temperatures up to 204°C and short-term peaks up to 240°C
- Chemical Resistance：They offer good resistance to acids and alkalis, making them suitable for use in environments with harsh chemicals.
- Mechanical Strength：Nomex fibers provide excellent mechanical strength, ensuring durability and a longer service life.
- Abrasion Resistance：The inherent abrasion resistance of Nomex fibers helps the bags withstand the rigors of dust collection processes.
Technical Specifications
| Item | Spec |
|---|---|
| Area Weight | 450 ± 5 g/m² |
| Thickness | 2.2 ± 10% mm |
| Air Permeability @200Pa | 22 ± 20% m³/m²/min |
| Force @ Peak (MD) | ≥900 N/5cm |
| Force @ Peak (CD) | ≥1200 N/5cm |
| Strain @ Peak (MD) | ≤25% |
| Strain @ Peak (CD) | ≤50% |
| Shrinkage 204°C (MD) | <1.5% |
| Shrinkage 204°C (CD) | <1.0% |
| Maximum Operation Temperature | 204°C (Dry) |
| Maximum Surge Temperature | 250°C (Dry) |
| Mechanical Finish | Heat Setting, Singeing, Glazing |
| Chemical Finish | None |
* Parameters are subject to minor material and weaving tolerance variations. This specification refers to our meta-aramid filter bag with product code PRO845. Aokai supports custom development for non-standard configurations.
Customized Design Solutions for Nomex Filter Bags
For high-temperature flue gases, corrosive environments, or heavy dust loads, AOKAI ENVIRONMENTAL designs and manufactures premium filter bags with optimized fiber selection, needle-punching, and advanced finishing—singeing, calendaring, heat setting, PTFE membrane lamination, and water & oil repellent treatment—for superior filtration efficiency, easier dust release, and longer service life.
We also offer fully customizable dimensions, shapes, and structures—including round, flat, and special-shaped bags—to fit any dust collection system, reduce airflow resistance, improve system stability, and enhance energy efficiency.
Post Treatment: Heat Setting /Singeing /Glazing /Dipping /PTFE Membraner/Water and Oil Proof /Anti-static/Low Adhesion
Seam Design：Double-stitched seams using high-temperature resistant threads.
Support Rings：Integrated support rings or other reinforcement structures to maintain bag shape and ensure optimal airflow.
Top and Bottom Configurations：Available in various designs, including snap band, ring top, and flange top for easy installation and secure fitting.
Need customized configurations for non-standard baghouses?
Tailored Finishing Treatments
01
Singeing / Calendering
Removes loose surface fibers and runs the material through hot calendering rolls for a smooth surface that ensures exceptional dust-cake release.
02
Water & Oil Repellent
Impregnated with Teflon agents to repel moisture and light hydrocarbons, preventing bag-blinding due to local dew-point cooling.
03
PTFE Membrane Coating
Laminates a micro-porous expanded PTFE membrane on the bag surface, enabling surface filtration and capturing particulates down to 0.1μm.
04
PTFE Impregnation
Coats each fiber evenly with a Teflon bath to significantly increase anti-oxidant thresholds and provide friction-free sliding wear properties.
Application
high heat and sticky dust that can clog filters
high-temperature metal dust and sparks
acidic flue gas and variable dust load
abrasive dust causing rapid wear
Related High-Temperature Filter Bags
Explore our extensive portfolio of high-temperature filter media designed to conquer diverse chemical, physical, and temperature-related challenges.
PPS Filter Bags
Excellent anti-hydrolysis and supreme acid/alkali resistance. Highly recommended for coal-fired boilers and municipal waste incinerators.
PTFE (Teflon) Bags
Maximum threshold for complex gaseous attacks. Ultimate corrosion barrier for critical, high-acid chemical and fly ash baghouse operations.
P84 filter bag
The unique tri-lobed fiber cross section increases the surface area to intercept ultra-fine particulates. High efficiency for cement mills.
Fiberglass Composite
Combines the cost-efficiency of fiberglass with the flex endurance of aramid. Perfectly suited for static metallurgical filtration.