Asphalt Plant Challenges & Aokai Filter Bag Solutions
Airflow Erosion
High pulse-jet pressure or improper airflow direction may cause local impact, deformation and premature wear on filter bags.
Aokai Solution
Use filter cage protection sleeves, venturi tubes and optimized pulse-cleaning pressure to reduce direct airflow impact and extend bag life.
Mechanical Damage
Filter cage burrs, rough welding points or improper installation can scratch the filter bag and cause holes or tearing.
Aokai Solution
Inspect cage quality, remove burrs, improve cage alignment and strengthen wear-prone areas with proper filter bag structure design.
Filter Bag Blinding
Moisture, oil fume and incomplete combustion may cause sticky dust accumulation, high pressure drop and filter bag blockage.
Aokai Solution
Apply water & oil repellent treatment, PTFE membrane or low-adhesion finishing, while optimizing combustion and moisture control.
Overheating & Burn-through
Excessive flue gas temperature or sparks entering the baghouse may lead to filter bag shrinkage, hardening or burn-through.
Aokai Solution
Select high-temperature resistant aramid filter media, PRO647 filter bags or flame-retardant solutions based on temperature and spark risk.
Aokai Dust Collection Solutions
Filter Bags for Asphalt Plants
Baghouses are still the most commonly used filtration solution to meet the emission control standards in the industry. They can be of the reverse air, pulse jet, or even shaker style.
Aokai specializes in making filter bags that fit and work perfectly with asphalt plant equipment from all major brands, such as Ammann, Marini, Benninghoven, Nikko, Lintec, Astec, Parker, Tarmac, and KVM. We are the OEM supplier of filter bags to some of these brands, and the after-market or replacement filter bag supplier to all these brands.
Aokai uses the highest quality fabric raw materials from the most reputable suppliers (e.g., Teijin Conex, and DuPont Nomex). Focusing on industry-specific emission control requirements, our asphalt mixing plant filter bags have the following advantages:
- Reduced dust emissions
- Increased filter bag life due to improved abrasion and corrosion resistance
- Increased energy efficiency due to reduced cleaning
- Sustainable production capacity due to increased airflow capacity
How to Select Filter Bags for Asphalt Plants
| Information Needed | Why It Matters |
|---|---|
| Operating temperature and peak temperature | Determines whether aramid, PPS, PTFE membrane or other filter media should be selected. |
| Dust characteristics | Helps evaluate abrasion, stickiness and cleaning difficulty. |
| Oil fume and moisture condition | Helps decide whether PTFE membrane or water & oil repellent treatment is needed. |
| Gas composition | Helps evaluate acid gas corrosion and chemical resistance requirements. |
| Filter bag size and quantity | Needed for production, quotation and replacement matching. |
| Dust collector type | Helps confirm top design, bottom structure and installation method. |
Aokai Asphalt Plant Filtration Solutions
| 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% |
| Recommended Application | General asphalt plant baghouse filtration | Higher emission control requirement | Medium-temperature asphalt plant condition |
Filter Bag OEM Manufacturer
Asphalt Industry Achievements
Aokai has established a broad and loyal customer base across the asphalt industry, serving a signifi-cant number of asphalt producers directly.
Our solutions are the preferred choice, integrated into the systems of major asphalt plant equipmentmanufacturers, who design, manufacture, and build asphalt plants globally.
1500+
Annual Average Numberof Plants Served
46%
Industry Coverage
43%
Revenue Percentage
21+
Years of Experience
Filter Bag OEM Manufacturer
Achievements Asphalt Producers
Aokai has established a broad and loyal customer base across the asphalt industry, serving a significant number of asphalt producers directly.
Fuel Types：Heavy Oil, Light Oil, Coal, Natural Gas
Plant Capacity：＜40T/h, 40-400T/h, ＞400T/h
Plant Type：Batch, Continuous
Note: Data statistics as of June 2025 of the company
Aokai Asphalt Plant Filtration Solutions
Replacement Filter Bags Compatible with Major Asphalt Plant Brands
Aokai supplies customized replacement filter bags compatible with many asphalt plant baghouse systems, including equipment from major asphalt plant manufacturers. Filter bag dimensions, top structure, bottom design and material selection can be customized according to the original dust collector design.
All trademarks and brand names are the property of their respective owners. Brand names are used only to indicate compatibility and replacement applications.
Sany
CIMC
D&G
Tietuo
Yalong
Xitong
Huanqiu Zhongkai
Liaozhu
Zoomlion
Quancheng
XCMG
Lutong
YIMA Tech
Lutai
Yueshou
NFLG
Xuetao
Jialong
Sannuo
Lushida
Luda
Huatong
Hengda
Dagang
Lubang
Beite
Jinyun
Lude
Atalas Copco
Meitong
Ammann
Marini
Nikko
Astec
Benninghoven
Lintec
Liebherr
OMRON
SPECO
Stetter
HELP & SUPPORT
Technical FAQ
Aramid filter bags are commonly used for asphalt mixing plants because they offer good high-temperature resistance. For conditions with oil fume, sticky dust, moisture or acid gas, Aokai may recommend PTFE membrane aramid filter bags, PPS filter bags, PRO647 high-performance filter bags or specially treated filter media.
Common causes include excessive operating temperature, sparks, oil fume, moisture, acid gas corrosion, abrasive mineral dust, improper filter cage quality, incorrect installation and unstable baghouse operation. A full working-condition review helps identify the real cause before replacing the filter bags.
Filter bag blinding is often related to moisture, oil fume, sticky dust and incomplete combustion. Water & oil repellent treatment, PTFE membrane, low-adhesion surface finishing and optimized combustion control can help reduce high pressure drop and blockage.
Yes. Aokai can customize filter bag diameter, length, top structure, bottom structure, sewing method, surface treatment and material selection according to the original baghouse design and actual operating conditions.
Yes. Aokai supplies dust filter bags and matching filter cages for industrial baghouse dust collector systems. Proper filter cage quality is important because cage burrs, rough welding points and poor alignment may damage filter bags during operation.
Need support for asphalt plant dust collection? Send us your filter bag size, working temperature, dust condition and quantity. Aokai will help you evaluate the suitable filter media and replacement solution.
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