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.
Years of Serving Customers
Employees
Floor Area
Global Trade
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
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
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
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
Filter Cloth
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.
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.
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.
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.
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.
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.
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.
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.
Innovations, Achievements, and Cleaner Air Insights
Latest News
粘结磁性材料生产工艺及粉尘回收
粘结磁性材料（Bonded Magnetic Materials）是将磁性粉末与粘结剂（如高分子树脂、塑料或橡胶）混合，通过特定的成型工艺制成的磁体。与烧结磁体相比，它无需高温烧结，具有更高的尺寸精度、更好的可塑性和更低的生产成本，但磁性能通常较低。 以下是粘结磁性材料（以粘结钕铁硼为例）的详细生产工艺流程，以及在各步骤中涉及的粉尘控制与回收方案。 磁粉制备阶段 此阶段的目的是生产出适合与粘结剂混合的磁性粉末。 1. 合金制备与雾化制粉 将原材料熔炼成合金，并通过雾化技术将其制成所需粒度范围的磁粉。 详细步骤： 原材料熔炼：将钕、铁、硼等原材料按比例称重，在真空感应熔炼炉中熔化，制成合金。 雾化制粉：将熔融的合金通过高压水流（水雾化）或高压惰性气体（气雾化）喷射，使其迅速冷却凝固成不规则或球形的细小粉末颗粒。水雾化通常产生不规则形状的粉末，气雾化则多为球形粉末。 干燥与筛分：雾化后的粉末（特别是水雾化粉）含有水分，需要进行干燥。干燥后的粉末再通过振动筛或气流筛进行筛分，分选出所需粒度范围的磁粉。 主要设备：真空感应熔炼炉、水雾化/气雾化制粉设备、真空干燥炉、振动筛/气流筛。 粉尘产生、除尘与回收需求及方案： 粉尘产生：…
烧结磁性材料生产工艺及粉尘回收
烧结磁性材料的生产是一个高度专业化且涉及多步骤的复杂过程。这里以高性能烧结钕铁硼磁体为例，详细介绍其从原材料到成品磁体的完整工艺流程，包括磁粉制备的每个具体步骤和所使用的主要生产设备，并补充说明每个环节的粉尘产生情况、除尘与粉尘回收的需求及方案。 磁粉制备阶段 这个阶段是烧结磁体生产的基础，也是决定最终产品磁性能的关键。 1. 原材料准备与熔炼 将高纯度的原材料按精确配方熔炼成成分均匀的合金锭，为后续制粉提供基础。 详细步骤 精确配料：根据目标磁体的牌号和性能要求，精确称量高纯度的稀土金属（如钕、镨、镝等）、纯铁和铁硼合金等原材料。 真空感应熔炼：将称量好的原材料放入真空感应熔炼炉中。炉内抽真空并充入惰性气体（如高纯氩气）进行保护，通过感应加热使金属熔化。这能有效防止氧化和杂质污染。 快速凝固：将熔融的合金快速浇注到水冷或气冷的铸模中，使其迅速凝固形成合金铸锭。快速凝固有助于形成微细、均匀的晶粒结构，这对后续粉碎和最终磁性能至关重要。 主要设备：真空感应熔炼炉、快速凝固铸造设备。 粉尘产生、除尘与回收需求及方案 粉尘产生：此阶段主要产生极少量的金属蒸汽或烟尘，几乎不产生固态粉尘。 除尘/回收需求：主要控制熔炼过程中可能产生的少量烟雾和金属蒸汽，确保操作环境洁净。无需进行粉尘过滤或回收。 方案：在熔炼炉上方设置局部抽风罩，通过排风系统将烟雾排出。 2.…
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。…
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…