Three Chinese ESP makers compete on scale, certification and custom service

By AI, Created 9:06 AM UTC, May 29, 2026, /AGP/ – A 2026 industry roundup highlights three Chinese electrostatic precipitator manufacturers with different strengths in industrial dust control. The comparison matters for buyers choosing between large-scale utility projects, mid-size plant retrofits and one-stop custom systems.

Why it matters: - Stricter environmental rules and sustainability goals are driving demand for high-efficiency industrial air pollution control systems. - Electrostatic precipitators remain a core technology for capturing fine particulate matter from large exhaust streams. - Procurement teams are comparing Chinese suppliers on emissions performance, certifications, lead times and service scope.

What happened: - A 2026 review identified three Chinese electrostatic precipitator manufacturers as notable options for industrial buyers. - The companies are Hebei Outai Environmental Protection Equipment Co., Ltd. (SENOTAY), Zhejiang Tianjie Environmental Technology Co., Ltd., and Fujian Longking Co., Ltd. - The comparison focused on product innovation, market reach and compliance with global standards.

The details: - SENOTAY was established in 2015 and is headquartered in Botou, Hebei Province. - SENOTAY operates a 6,000-square-meter factory, employs 30 staff and includes a five-engineer R&D team. - SENOTAY reports annual production capacity of 100,000 pieces of equipment and monthly capacity of 200 custom-order sets. - SENOTAY exports 70% of its products to Central Asia, Southeast Asia, the Middle East, Russia, Africa and Europe. - SENOTAY’s portfolio includes pulse bag filters, electrostatic precipitators, cyclone dust collectors, wet scrubbers and VOC purification equipment. - The WESP-10000 wet electrostatic precipitator has airflow capacity of 5,000–10,000 m³/h, dust removal efficiency of at least 95% and exhaust emission concentration of no more than 20 mg/m³. - The WESP-10000 operates at temperatures up to 80°C with pressure drop up to 300 Pa. - The unit is built from SS304, carbon steel or SS316 for corrosive environments. - Typical applications include coal-fired power plants, steel sintering, chemical processing, waste incineration and petrochemicals. - SENOTAY holds a CE certificate issued by UDEM under certificate number M.2025.206.C123090. - The CE certification covers the 2006/42/EC Machinery Directive and EN ISO 12100:2010 and EN 60204-1:2018, and it is valid until July 2030. - SENOTAY also operates an ISO 9001-certified quality management system and performs 100% pre-shipment testing. - In Indonesia, SENOTAY supplied a DMC-200 pulse bag filter to a tire factory for dust from rubber compound mixing. - The Indonesia system runs 24/7, uses piping, electrical controls, high-pressure gas supply and a variable-frequency fan, and is described as a turnkey installation. - SENOTAY offers a four-stage service model covering on-site design, custom manufacturing, installation and commissioning, and 24/7 maintenance and renovation. - SENOTAY supports OEM/ODM customization with a 15–45 day lead time and a minimum order quantity of one unit. - SENOTAY accepts EXW, FOB, CIF, DAP and DDP delivery terms and uses a 50/50 payment structure. - Zhejiang Tianjie Environmental Technology Co., Ltd. is headquartered in Zhuji, Zhejiang Province, and was established in 2003. - Tianjie is publicly listed on the Shenzhen Stock Exchange under stock code 300266. - Tianjie specializes in electrostatic precipitators, baghouses and desulfurization systems. - Tianjie’s manufacturing base covers more than 100,000 square meters, and annual revenue exceeds 3 billion Chinese yuan. - Tianjie’s equipment is installed widely in coal-fired power plants across China and exported to Southeast Asia and South America. - Tianjie designs large-capacity dry ESPs for utility boilers with airflow above 1,000,000 m³/h. - Tianjie holds ISO 9001 and ISO 14001 certifications and has patents for high-resistivity dust applications. - Fujian Longking Co., Ltd. is headquartered in Longyan, Fujian Province, and was founded in 1992. - Longking is described as one of the world’s largest electrostatic precipitator manufacturers and has a market capitalization of about 15 billion Chinese yuan. - Longking supplies complete air pollution control systems for power generation, cement and metallurgy. - Longking has supplied equipment to more than 80 countries and holds patents for wet ESP and mobile electrode technology. - Longking has an in-house research institute and participates in drafting international standards. - Longking’s ESPs can achieve emissions below 10 mg/m³ in certain applications.

Between the lines: - The three companies appear to serve different buyer profiles rather than compete head-to-head on every project. - Tianjie and Longking are positioned for very large industrial and utility installations. - SENOTAY is positioned around mid-size projects, customization and shorter lead times. - Wet ESP demand is rising because the technology handles fine particles and sticky dust better in some harsh industrial settings. - Corrosion-resistant materials are becoming more important as buyers look to extend equipment life in difficult operating environments. - CE certification and ISO systems remain important signals for export-oriented suppliers.

What’s next: - Buyers are likely to keep segmenting supplier choices by project size, emissions target and service needs. - Wet ESPs and smart-control integration are likely to gain more attention as plants seek higher efficiency and lower energy use. - Suppliers that can combine compliance, customization and faster support may gain ground in mid-market industrial applications.

The bottom line: - China’s ESP market now spans global-scale incumbents and smaller turnkey specialists, giving industrial buyers more choice but also more room to narrow suppliers by project type and operating conditions.