High-Performance Dust Filter Bags Engineered for Reliable Industrial Filtration

Factory direct supply

Stable quality across batches

Technical support before & after delivery

Manufacturing Strength You Can Rely On

Welcome To Aokai Environtec

Aokai Environtec, founded in 2004, has been deeply committed to flue gas treatment and gas filtration for 21 years. We are a production-and-service-oriented enterprise driven by customer needs and led by technology. We focus on product innovation, service innovation, and value innovation, delivering integrated solutions to our clients.

With over 300 skilled workers, German production techniques, rigorous material selection, imported equipment, and advanced management systems, we achieve an annual output of 4,000,000 square meters of filter cloth, 3,000,000 filter bags, and 2,000,000 filter cages.

We have earned an excellent reputation from more than 10,000 customers worldwide thanks to our superior quality, competitive pricing, professional consulting services, and extensive market presence.

1
Years of Serving Customers
10
Employees
50
Floor Area
1
Global Trade

Filter Cloth Manufacturing

Filter Cloth Manufacturing

Advanced weaving, needling, and finishing lines for polyester, polypropylene, PPS, PTFE, Nomex, fiberglass and composite filter fabrics. Annual capacity: [Annual capacity: 4,000,000 m²/year].

Filter Bag Manufacturing

Filter Bag Manufacturing

Automated cutting, sewing/welding, and inspection for pulse-jet, shaker, reverse-air bags in all industry-standard sizes and configurations. Custom designs available.Ensure an annual production capacity of 3 million filter bags.

Cage / Wire Cage Production

Cage / Wire Cage Production

Aokai Environment operates a high-efficiency, state-of-the-art wire cage production line with an annual capacity of 2 million meters.

Intelligent Warehousing Module

Intelligent Warehousing Module

Spanning over 10,000 square meters, Aokai Environment’s intelligent warehousing system ensures efficient, accurate, and secure storage of raw materials, semi-finished products, and finished filter bags, cloths, and cages.

What We Offer

Products and Services

Through our dust filtration and collection expertise, we collaborate with customers across major industries to solve their most complex dust extraction, filtration, and collection challenges.

Filter bags are custom made based on operating conditions, emission control requirements, dust collector types, and to your precise physical specifications.

Filter Bags

Filter cloth of surface or depth filtration, whether it is corrosion, heat, abrasion, static resistant, or water & oil repellent, you want it, we custom make it!

Filter Cloth

Filter cages are manufactured in-house to ensure perfect fittings. They are built with a variety of material and construction options in order to withstand the toughest challenges in any industries.

Filter Cages

We better understand your on-site operating conditions

Industries & Applications We Serve

Our dust filter bags are widely used in demanding industrial environments, designed to perform reliably under high temperature, corrosive, and high-dust conditions.

Asphalt Plant
Cement Plant
Renewable Energy
waste-incineration
Power Plant
Non-Ferrous Metals
More than 1,000 overseas factories have completed the replacement and are running stably

Already Running in Real Plants

Our filter bags are not only tested in the laboratory — they are continuously operating inside baghouses across multiple countries and industrial conditions.

Asphalt Mixing Plant – Australia

High humidity sticky dust, aramid filter bags, solved condensation & bag blinding

Biomass Boiler – Thailand

Spark & temperature fluctuation, P84 composite bags, no burning damage

Carbon Black Plant – South Asia

Ultra-fine dust, antistatic polyester bags, improved collection efficiency

Cement Plant – Southeast Asia

Working temperature 240°C kiln exhaust, fiberglass PTFE membrane bags, operating for 18+ months

Innovations, Achievements, and Cleaner Air Insights

Latest News

magnetic material
稀土磁性材料

永磁材料简介

永磁材料是一种能够在无外部磁场情况下长期保持强磁性的材料,其磁性来源于电子自旋和轨道运动产生的磁矩。典型代表包括稀土永磁材料(如钕铁硼 NdFeB 和钐钴 SmCo),因高磁能积和高矫顽力而广泛应用于工业领域,如电动车辆、风力发电和电子设备。它们的性能和应用因生产工艺(如烧结、粘结、热压)而异,满足多样化的技术需求。 永磁材料的种类 根据生产工艺,NdFeB 永磁材料主要分为以下三种类型,每种类型对应不同的制造技术和磁学特性: 烧结磁性材料(Sintered Magnets) 生产工艺: 磁粉制备:通过真空熔炼、条带铸造、氢爆粉碎(Hydrogen Decrepitation)和气流粉碎(Jet Milling)制备1-5 μm的微米级磁粉。 成型:在磁场中取向压制(50-200 MPa),形成生坯。…
Filter bag
光纤行业

光纤预制棒生产过程中的除尘

改良化学气相沉积法(MCVD)、外部气相沉积法(OVD)和轴向气相沉积法(VAD)都属于气相沉积(Vapor Deposition)技术,其核心是利用化学反应在高温下产生玻璃前驱体,进而形成多孔的“玻璃烟灰”(Soot),最后烧结成透明的玻璃预制棒。这个过程中产生的烟气和颗粒物是主要的除尘对象。 尘源与粉尘特性 在 VAD、OVD 和 MCVD 工艺中,主要的尘源并非传统的机械粉尘,而是化学反应的副产物和未沉积的微细颗粒物。 化学反应副产物: 这些工艺通常使用氯化物作为玻璃原料(如 SiCl₄ 、GeCl₄ ),在高温下与氧气、氢气等反应生成二氧化硅(SiO₂ )和掺杂剂氧化物。反应会产生副产物氯化氢(HCl),这是一种强腐蚀性气体,对除尘系统有极大的腐蚀性。 未沉积的“烟灰”(Soot): 在反应过程中,并非所有的玻璃前驱体都能完全沉积到预制棒上。部分亚微米级甚至纳米级的 SiO₂  和掺杂剂颗粒会随着废气排出,形成肉眼不可见的细微粉尘。 高温烟气: 反应过程在…
光纤预制棒
光纤行业

光纤预制棒的生产工艺

光纤预制棒是制造光纤的核心原材料,其生产工艺决定了最终光纤的性能。这些工艺都属于气相沉积法,其核心思想是利用高温化学反应,将高纯度气态原料转变为玻璃微粒,然后沉积并烧结成透明的玻璃棒。 我们将详细解说三种主流的光纤预制棒生产工艺:MCVD、OVD和VAD。 改良化学气相沉积法(MCVD) MCVD工艺在石英管内部进行化学沉积,是制造高质量光纤的经典技术。 核心原理: 将高纯度的原料气体(如 SiCl4, GeCl4)通入一根高速旋转的石英管内部。 管外有一把移动的氢氧焰加热炬,当加热炬扫过时,管内气体在高温下发生氧化反应,生成纳米级的玻璃微粒(烟灰)。 这些微粒在热泳效应的作用下,从高温区域向低温区域移动,沉积在管内壁上。 加热炬再次扫过时,将疏松的烟灰层烧结成透明致密的玻璃层。 工艺步骤: 沉积: 在旋转的石英管内分层沉积,首先沉积纯净的包层,然后通过加入掺杂剂 (GeCl4) 沉积纤芯。…
asphalt road paving
沥青搅拌行业

沥青拌合站生产工艺的7个步骤

沥青是一种多功能的铺路材料,广泛应用于道路施工、维护和修复。它由骨料、填料和沥青( bitumen)混合而成。沥青拌合站(AMP)用于生产热拌沥青(HMA),这是道路施工中最常用的沥青类型。沥青拌合站主要分为两种: 间歇式沥青拌合站: 间歇式沥青拌合站每次生产一批沥青混合料,每批次通常在 4 到 8 吨之间。间歇式拌合过程始于骨料的给料和干燥。随后对骨料进行筛分和称重。沥青被加热和称重,然后与骨料和填料一起加入拌合锅。混合物按预定时间进行拌合,然后从拌合锅中排出。 连续式沥青拌合站: 连续式沥青拌合站通过连续的沥青流进行拌合。骨料、沥青和填料以受控速率送入拌合锅。混合物在通过拌合锅时进行拌合,然后从拌合锅中排出。 间歇式和连续式拌合站的主要区别包括: 产能: 连续式拌合站通常比间歇式拌合站具有更高的产能。 一致性: 连续式拌合站由于连续混合,可以提供更稳定的混合料质量。 灵活性: 间歇式拌合站允许更轻松地更改配方和添加特殊添加剂。 成本: 连续式拌合站的购买和运营成本可能更高,但通过更高的产量和效率可以节省长期成本。 这两种类型的沥青拌合站虽然存在一些关键差异,但它们遵循相似的通用生产过程。 沥青拌合站生产过程…
Core Competencies

Why Choose Aokai

Our R&D capabilities are driven by a highly experienced development team supported by state-of-the-art laboratory equipment, enabling us to push the boundaries of filtration innovation.

We continuously invest in new product development to deliver cutting-edge solutions that meet evolving market needs. This strong foundation allows us to accelerate ideas from concept to commercialization with efficiency and precision.

lab 4

With decades of experience, we provide a custom filter bag design capability that ensures optimal performance for your specific application.

Our process begins with a detailed customer operating condition analysis to fully understand your system’s unique challenges. Based on this analysis, we expertly select the ideal filter media. We then design the fabric construction and post-treatment. Finally, our engineers finalize the filter bag design, ensuring a perfect fit and seal in your dust collector for superior filtration and a longer bag life.

custom design 1

Our flexible supply chain management allows us to respond quickly to customer needs and adapt to changing market conditions.

From raw material sourcing and inventory management to manufacturing, warehousing, and final delivery, we ensure on-time fulfillment for orders of any size.

Large-Scale Warehouse Storage

Aokai Environtec’s manufacturing strength lies in its advanced facilities, skilled workforce, and decades of industry experience.

Our modern production lines and strict ISO-certified quality systems ensure efficiency, consistency, and scalability, allowing us to meet the needs of both specialized projects and large-volume orders.

先进的设备

From supplier selection and raw material inspection to filter media production, bag prototyping, and large-scale manufacturing, we apply rigorous in-process and end-to-end quality controls to ensure consistent, outstanding product performance.

By leveraging AI technologies, we further elevate our quality standards—delivering filtration solutions that not only meet but exceed your expectations.

lab 5

We deliver customized filtration solutions tailored to the needs of industries across all sectors. From the very first consultation—offered free of charge—through detailed operating condition analysis, product design, precision manufacturing, and professional installation, we ensure every solution is optimized for performance and reliability.

Beyond delivery, our dedicated after-sales service team remains by our customers’ side, providing ongoing support and expertise to keep their operations running smoothly.

Baghouse Inspection & Maintenance