EnglishAdding an ePTFE membrane to an aramid filter bag allows the membrane to act as the filter cake. Dust stays on the surface of the membrane and does not get entrained into the fibers of the filter bag, which lengthens the life of your filter bag. It also reduces wear and tear, lower maintenance costs, and energy costs due to easy dust cake release during the cleaning cycle.
Our filter bags are designed based on actual site conditions, not generic catalog assumptions. We help you select the right media to balance filtration efficiency, pressure drop, and service life.
Meta-Aramid baghouse filter bags are relied on by the asphaltindustry (and others) due to its high temperature rangeand excellent chemical resistance. Meta-Aramid does not shrink in high-temperature environments where continuousoperating temperatures are up to 204°C with surges up to 250°c. The fiber also offers very good tensile strength andabrasion resistance. A high tensile strength means the fibers won’t break or fray in abrasive environments. This leadsto good mechanical stability, which means the fiter bag will maintain its shape. Meta Aramid can withstand hightemperatures without melting.
Learn About Aramid/Nomex Needle Felt
| ITEM | CONEX145 | PRO845 | PRO545 | MAX445 |
|---|---|---|---|---|
| Working temperature (°C) | 204 | 204 | 204 | 180 |
| Peak temperature (°C) | 250 | 250 | 240 | 220 |
| Emission (mg) | 20 | 20 | 20 | 20 |
| Weight (g/㎡) | 450±5% | 450±5% | 450±5% | 450±5% |
| Thickness (mm) | 2.2±10% | 2.2±10% | 2.4±10% | 2.2±10% |
| Air permenability （m³/㎡/min @200Pa） | 22±20% | 22±20% | 26±20% | 24±20% |
| Tensile strength / warp（N/5cm） | >900 | >900 | >900 | >900 |
| Tensile strength / weft（N/5cm） | ≥1200 | ≥1200 | ≥1200 | ≥1200 |
| Tensile elongation / warp（%） | ≤25 | ≤25 | ≤25 | ≤25 |
| Tensile elongation / weft（%） | ≤50 | ≤50 | ≤50 | ≤50 |
| 24-hour heat shrink / warp（%） | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 |
| 24-hour heat shrink / weft（%） | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 |
Post-treatment:Heat Setting / Singeing / Glazing/Low Adhesion Treatment
| Characteristics | Rating | Rating | Rating |
|---|---|---|---|
| Product | HPE245N | PRO845N | PRO445N |
| Fiber Content | Aramid Blend | Aramid Blend | Aramid Blend |
| Weight | 475g/m² (14oz/yd²) | 450g/m² (13.27oz/yd²) | 450g/m² (13.27oz/yd²) |
| Thickness | 2.20mm (0.086in) | 2.20mm (0.086in) | 2.20mm (0.086in) |
| Continuous Operating Temperature | 204°C (400°F) | 204°C (400°F) | 180°C (356°F) |
| Maximum Surge Temperature | 250°C (482°F) | 250°C (482°F) | 220°C (428°F) |
| Emission | 10mg/Nm³ | 20mg/Nm³ | 20mg/Nm³ |
| Abrasion Resistance | Good | Good | Good |
| Acid Resistance | Good | Good | Good |
| Alkali Resistance | Good | Good | Good |
| Moist Heat Resistant | Good | Good | Good |
| Energy Absorbsion | Good | Good | Good |
| Filtration Property | 99.99% | 99.99% | 99.99% |
Post-treatment:Heat Setting / Singeing / Glazing/ Low Adhesion Treatment
With a unique combination of thermal stability and mechanical toughness, our Nomex bags are the industry standard for asphalt plants, cement kilns, and steel smelting.
The Aramid Filter Bags low-emission series, designed specif-ically for asphalt mixing plants, utilizes high-qualityultra-fine materials and optimized needle punchingtechnology to provide you with a durable and effi-cient dust control solution, helping you achieve bothproduction and environmental standards!
Low Emission
Smaller pore size and even pore size distribution
allow flter bags to intercept fine dust particles and
achieve higher fltration efficiency.
Longer Lifespan
Compared to conventional material,it has superil
abrasion resistance(10-30% improvement), and
longer cleaning interval (5-25% improvement).
Energy Savings
The optimized air permeability and lower operating resistance of the filter media work together to effectively decrease energy consumption, thereby leading to significant reductions in operation costs.
Raw material quality control
The raw materials of Aokai have undergone tests for 13 indicators in the laboratory, including fiber composition, air permeability, breaking strength and elongation at break, thermal shrinkage, moisture regain, oil content, and fiber melting point, with all test standards surpassing the relevant criteria.
Production process quality control
The factory has obtained ISO9001 and ISO14001 certifications. It operates in accordance with the 7S management standards, strictly controls product quality in line with international high-end product testing standards, retains inspection records for more than 3 years and electronic records permanently, ensuring the traceability of each batch of products.
We also provide various high-quality filter cages, filter bags, and other accessories to offer you a one-stop dust removal solution.
From Sample Analysis to Engineered Filter Solutions
Sample Analysis & Application Review
R&D & Material Engineering
Filter Bag & Cage Design
Fast & Transparent Quotation
Material specification
Unit price & MOQ
Lead time and delivery terms
Sampling & Confirmation
Manufacturing, QC & Delivery
Aokai Environtec is a leading manufacturer of baghouse filter cloth, filter bags,filter cage. Founded in 2004 and headquartered in China, our products are used in a variety of applications and industries, including asphalt mixing plants, cement plants, mining operations, power generation plants, metallurgy industry, renewable energy industry, waste incineration plants, and other industrial facilities. Our mission is to make the world a cleaner and better place by protecting people, the planet, and production from the harmful effects of industrial processes.
Annual Filter Media Production
Annual Filter Bag Production
Annual Cage Production
Smart Warehouse
A: Key indicators include a sustained high differential pressure (DP), visible dust emissions from the stack (leakage), or a noticeable drop in suction efficiency at the source.
A: Generally, a high-quality filter bag lasts between 3 to 5years. However, this varies significantly based on maintenance, cleaning frequency, and the harshness of the filtration environment.
A: We recommend selecting bags based on three key factors: Operating Temperature (continuous and peak), Gas Chemistry (moisture, acidity, or alkalinity), and Dust Characteristics (abrasiveness, particle size, and static charge).
A: Yes, as a leading manufacturer in China, we specialize in customized filtration solutions. We can produce bags to any specific length, diameter, and top/bottom configuration to fit your existing baghouse.
A:Yes. We design our bags to help plants achieve emissions as low as <5mg/Nm³. By utilizing fine denier fibers and advanced needle-punching technology, our filter media provides superior capture efficiency for sub-micron PM2.5 and PM10 particles, ensuring your facility remains in full compliance with local and international environmental regulations.
Please share your contact information to download the documents.
Our engineers may follow up to ensure the information fits your application.
Send download link to:
Send download link to:
Send download link to:
Send download link to:
Contact us to discuss your project and long-term filtration solutions.
All information will be kept confidential.
