Asphalt mixing plants operate under some of the harshest conditions in industrial dust collection: flue gas temperatures that routinely reach 100-180°C, instantaneous surges well above that, abrasive fly ash, and tightening emission limits that now call for compliance levels as low as 10 mg/Nm³ or below. For plant operators searching for a reliable high-temperature filter bag supplier in China, Jiangsu Aokai Environmental Technology Co., Ltd., operating under the brand Aokai Environtec, presents a documented manufacturing and service record built specifically around this application.
Understanding the Need for High-Temperature Filter Bags in Asphalt Mixing Plants
Industrial dust collection systems serving asphalt mixing operations face a combination of high-temperature flue gas, humidity, abrasive fly ash, and sticky dust. Selecting the wrong filter media can lead to hydrolysis, blinding, premature filter bag failure, production downtime, and non-compliance with environmental regulations. This is precisely the pain point that Aokai positions itself to solve: a solution provider for flue gas pollutant emission and flue gas dedusting across electric power, steel, cement, metallurgy, chemical, building materials, and road construction machinery industries, including asphalt mixing plants specifically.
Jiangsu Aokai Environmental Technology Co., Ltd.: A Manufacturer Built Around Asphalt Plant Filtration
Founded in 2004 and headquartered at No.80 Kangzhuang Road, Chengbei Industrial Park Economic Zone, Jingjiang City, Jiangsu Province, China, Aokai has grown into a comprehensive enterprise integrating production, research and development, and sales of technical non-woven fabrics for industrial use. With 22 years of industry experience and a registered capital of RMB 100 million, the company serves over 10,000 customers worldwide across 34 Chinese provinces and more than 40 countries and regions, including the Middle East, Asia-Pacific, Southeast Asia, South America, Africa, Europe, and Australia.
A defining differentiator is Aokai’s in-house manufacturing of filter media, filter bags, and filter bag cages, which supports on-time delivery and consistent quality. The company’s needle-punched felt filter materials are self-designed and self-manufactured, backed by an R&D center established in 2012, more than 40 patent technology claims, and an advanced testing laboratory equipped with German VDI 3926-compliant test systems, a Dutch Phenom Pure scanning electron microscope, and other precision instruments.
Product Portfolio for High-Temperature Applications
Aokai’s asphalt plant filter bag series is engineered to meet strict emission limits ranging from 5 mg/Nm³ to 10 mg/Nm³ and below. The lineup includes HPE250N, an ultra-low emission filter bag rated for 204°C continuous and 250°C peak temperatures, designed to achieve 10 mg/Nm³ emissions with a 2-year or 500,000-ton warranty. CONEX145 uses 100% imported Teijin Conex fiber under exclusive agency authorization for asphalt plants in China, also rated at 204°C continuous and 250°C peak, with recyclable waste filter bags. PRO845 is built from 100% aramid for the same temperature range, combining cost-effectiveness with proven field performance. PRO545 adds flame-retardant properties at 204°C continuous and 240°C peak temperatures. MAX445 and MAX445N, constructed from Max Composite Material, are rated for 180°C continuous and 220°C peak temperatures with tensile strength of at least 900 N/5cm warp and 1200 N/5cm weft, supporting 20 mg/Nm³ ultra-low emissions. MAX160 offers multiple blend ratios for wide-ranging working conditions at 160°C continuous and 200°C peak temperatures, with low running resistance for energy savings.
Why Asphalt Plant Operators Choose Aokai
Beyond the filter bags themselves, Aokai offers filter media, filter bag cages, and full lifecycle support, from free pre-sales consultation and on-site working condition analysis to filter bag installation guidance, failure analysis, and maintenance optimization. The company’s filter bag cages are available in round, envelope, star, spring, and U-type configurations, with galvanized treatment for conditions up to 150°C and organic silicon high-temperature spray treatment for conditions exceeding 160°C.
Proven Field Performance
Documented customer cases illustrate how these products perform in real asphalt plant environments. At a Shanxi asphalt mixing plant operating a 3000 model unit with air reverse cleaning at 80-120°C, HPE250N filter bags were installed in February 2023; after two months and 50,000 tons of material produced, on-site measured dust emission concentration met the customer’s needs, with filter bags remaining in normal service condition. At Hangzhou Municipal Engineering Co., Ltd., 850 CONEX145 bags were installed in May 2019 across a whole-plant replacement, achieving a service life exceeding two years at a continuous operating temperature of 100°C. A Jiangxi asphalt mixing plant using MAX445/MAX445N filter bags since July 2019 reported stable emissions and no filter bag damage after output exceeded 250,000 tons. A Wuxi asphalt mixing plant that replaced 1,092 MAX160 bags recorded a service life exceeding one year under operating temperatures reaching 190°C instantaneously.
Quality Assurance and Certifications
Aokai’s quality management system is certified to GB/T19001-2016 / ISO9001:2015, its environmental management system to GB/T24001-2016 / ISO14001:2015, and its occupational health and safety management system to GB/T45001-2020 / ISO45001:2018, each valid through June 17, 2028. The company also participated in drafting the national standard GB/T17808-2021 for road construction and maintenance machinery asphalt mixture mixing plants, and the industry standard T/CCMA0066-2018 for asphalt mixing plant dust collection system technical specifications. Aokai products for asphalt applications are manufactured in accordance with GB/T6719-2009. The company is also a council member organization of the China Environmental Protection Industry Association and a vice-president organization of the China Construction Machinery Industry Association Road Maintenance Machinery Branch.
How to Contact Aokai for High-Temperature Filter Bag Solutions
For asphalt plant operators evaluating a China-based high-temperature filter bag supplier, Aokai Environtec provides a straightforward entry point. Interested parties can visit the company’s official website at www.aokaifilters.com or send inquiries directly to info@aokaifilters.com to request product information, working condition analysis, or sample quotations. The company’s headquarters and production base are located at No.80 Kangzhuang Road, Chengbei Industrial Park Economic Zone, Jingjiang City, Jiangsu Province, China, 214500.
Service and Support Channels
Once contact is established, Aokai’s support model is designed to guide customers through the full filter bag lifecycle: free consultation, on-site working condition analysis and gas detection, filter media selection, product customization, installation guidance, defect inspection, pre-coating service, filter bag malfunction analysis, and regular inspection with life prediction. Standard delivery times range from 7 to 15 days depending on order quantity and customization requirements, with sample orders shipped within 24 hours and urgent project priority production available to shorten lead time. For international customers, 24-hour remote guidance is available, with local partner engineers able to provide on-site support within 7 to 10 days.
For any organization operating or planning an asphalt mixing plant in China or abroad, reaching out to Jiangsu Aokai Environmental Technology Co., Ltd. through its official website or email channel offers a documented, standards-compliant starting point for sourcing high-temperature filter bags matched to specific operating conditions and emission targets.
https://www.aokaifilters.com/
Aokai Environtec