Discover our primary lineup of IECEx, ATEX, and CE certified electric motors designed for heavy-duty applications in hazardous operations worldwide.
Industrial manufacturing locations facing volatile gases, flammable mists, or combustible dusts require strict ignition protection. Under the European ATEX Directive 2014/34/EU and global IECEx standards, equipment operating in hazardous zones must pass rigorous qualification assessments. In these highly volatile areas, designated as Zone 1 & 2 (for gases and vapors) and Zone 21 & 22 (for combustible dust), standard electric motors pose an ignition risk via friction, heat, or electrical sparks.
By implementing a certified flameproof enclosure design, CE Certification Electric Motors guarantee that even if an internal explosion occurs, the flame will be contained inside the motor frame, and will not trigger an external disaster. Modern oil & gas refineries, mining operations, chemical plants, and pharmaceutical production facilities depend completely on these highly specialized machines to maintain constant uptime under hazardous parameters.
LEARN MORE ABOUT SAFETY COMPLIANCEShaanxi Nanfang Motor Technology Co., Ltd acts as the premier authorized distributor of Wolong. Wolong Electric Drive Group Co., Ltd was established in 1984 and went public on the Shanghai Stock Exchange in 2002 (code SH600580). Spanning more than 30 years of continuous growth, Wolong currently boasts 3 manufacturing bases, 39 factories, and 3 high-performance R&D centers globally. Wolong's global reach, technological supremacy, and optimized supply chain systems place it at the absolute peak of the explosion-proof motor market.
Every hazardous environment presents unique threats. Wolong's product portfolio is engineered to meet specific localized hazards with maximum reliability.
We supply diverse explosion-proof certificates tailored specifically to your localized compliance regulations, ensuring smooth installations across the EU, Eurasian Economic Union, Americas, and Australia.
Featuring IE3, IE4, and advanced IE5 efficiency ratings. We also offer permanent magnet synchronous models designed to cut carbon footprint, optimize operational costs, and reduce total energy grid loads.
Our catalog covers low and high voltage models, variable frequency drives, water-cooled enclosures, and conveyor specialized options suitable for mining, oil & gas, chemicals, and maritime projects.
Wolong has achieved international supremacy by acquiring the world's most trusted motor manufacturers. This synergistic platform delivers unmatched product excellence.
In 2011, WOLONG group successfully acquired 97.94% of the Austrian ATB Group (ATB motor), which stands as one of the three largest motor manufacturers in Europe. This acquisition brought the prestigious, 130-year-old Morley mining motor brand and Laurence Scott (renowned for low starting current and naval nuclear power grade generators) under the Wolong umbrella.
This integration gave Wolong an elite European design foundation, bringing high-specification, heavy-duty electrical technologies directly to our global client base.
Brook Crompton Motors has long been a pioneer in industrial motor innovation. Dating back over a century, their engineering team has designed top-tier electric motor solutions for harsh and hazardous operations. As a subsidiary of the Wolong Group, Brook Crompton continues to lead the industry in low, medium, and high voltage AC motor designs, including the premium "W" and "10" efficiency series.
Established in 1882, Germany's Schorch joined the Wolong Group in 2011. Schorch provides heavy industrial drive setups for oil, gas, chemical, water management, and shipyard projects globally. Combined with OLI's market dominance in vibration technology, Wolong stands as the prime driver for vibrating process machinery and ex-rated sensors globally.
In 2015, CNE (China's largest explosion-proof research and development facility) officially became part of Wolong, creating an elite domestic center for hazardous motor design. This was reinforced in 2018 when General Electric's (GE) commercial and industrial motor division partnered with Wolong. Wolong acquired GE's small and medium industrial motor business, expanding its capabilities in oil and gas, mineral processing, and power generation industries.
Wolong holds all critical international certificates required for high-risk industrial sites, facilitating smooth global imports and compliance approvals.
Nemko / ATEX
CSA Group
CE Certification
CCC Ex
SABS South Africa
TESTSAFE Australia
Our commitment to a globalized supply strategy is backed by our extensive certifications:
A deep look inside our motors reveals superior materials and engineering designed to prevent ignition, reduce noise, and extend operational lifespans.
Manufactured using centrifugal casting or advanced die-casting. Cast aluminum integrates the rotor bars and end rings, delivering outstanding starting torque and stability. For high-output applications, copper bar designs are used, featuring robust bar-securing and end-ring welding technology.
Our coils use polyester film and glass cloth reinforced with high-mica tape. Following a rigorous Vacuum Pressure Impregnation (VPI) process, our stator windings achieve excellent electrical insulation, mechanical strength, moisture resistance, and thermal stability.
Designed using structural and fluid multi-physics simulations, our high-grade cast iron or steel frames feature exceptional structural redundancy and heat dissipation. This minimizes vibration and helps prevent mechanical shock.
Features an integrated air guide cylinder, protective window, and silencer plate. The side-entry air inlet bypasses obstacles behind the motor, reducing energy loss and dampening operating noise. Rated at IP22 for contact protection.
China's industrial landscape offers key advantages for the production of explosion-proof electric motors, including vertical integration and complete material supply chains. Wolong leverages these advantages at every stage of production:
Modern procurement strategies focus on long-term value, energy efficiency, and risk mitigation. Major EPCs and plant operators prioritize the following features:
Our ATEX certified motors are designed to meet the demands of highly specialized applications globally:
Technical answers to key safety, engineering, and compliance questions faced by procurement managers and engineers.
Zone 1 is an area where an explosive atmosphere consisting of a mixture of air and flammable substances is likely to occur in normal operation occasionally. Zone 2 represents locations where explosive mixtures are not likely to occur during normal operation, or if they do occur, will persist for a short period only. Motors installed in Zone 1 require high-level flameproof 'd' or pressurized 'p' designs, while Zone 2 can often utilize increased safety 'e' or non-sparking 'n' designs depending on local hazard analyses.
The CE mark is a declaration by the manufacturer that the product meets the safety, health, and environmental protection requirements of all applicable European Directives. For electric motors in hazardous environments, the CE mark signifies compliance with the ATEX Directive (2014/34/EU) as well as the Machinery Directive, EMC Directive, and Low Voltage Directive.
Vacuum Pressure Impregnation (VPI) ensures that the insulating varnish penetrates deep into the stator winding coils, eliminating air pockets. This process yields superior mechanical strength, excellent heat dissipation, and prevents moisture ingress. It also provides high resistance to vibration and corrosive gases, reducing the risk of internal short circuits.
Yes. Series like the Wolong YBBP are specifically engineered for variable frequency speed regulation. They feature insulated bearings to block eddy currents and are matched with external fan systems to maintain optimal cooling when run at low operating frequencies.
We offer specialized motors, including water-cooled variable frequency models, positive pressure configurations, and heavy mining drives, to meet diverse project needs.
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