Shaanxi Nanfang Motor Technology Co., Ltd. serves as the premier authorized distributor of Wolong. Established in 1984 and listed on the Shanghai Stock Exchange in 2002 (code SH600580), Wolong Electric Drive Group Co., Ltd. stands as a powerhouse in the global electro-mechanical industry.
With over three decades of engineering excellence, Wolong has established 3 major manufacturing bases, 39 advanced factories, and 3 global R&D centers. The group's specialized focus on electric motors and control systems remains driven by a commitment to quality and technological integration on a global scale.
Learn More About UsCombining European mechanical engineering standards with advanced, digitized manufacturing capabilities to deliver high-performance motor technology for the most demanding environments.
Our complete range of explosion-proof and flameproof motors holds global certifications including ATEX, IECEx, and EAC, ensuring safe operation within dangerous Class I and Class II explosive zones.
We provide standard and custom configurations up to premium IE5 efficiency levels, including Permanent Magnet Synchronous Motors (PMSM) that optimize operational energy consumption.
Covering low, medium, and high-voltage AC motors designed to operate seamlessly under harsh conditions across underground mines, oil platforms, chemical processing plants, and marine vessels.
R&D and Technical Advantages
Wolong operates motor and drive control R&D centers in China, Europe, and Japan. Backed by a central research institute in Shanghai, the company remains dedicated to motor and control technology innovation, delivering products engineered to international standards.
Global Brand Portfolio
Wolong owns established domestic brands such as Nanyang Explosion, as well as internationally recognized names like Brook Crompton, Morley, Laurence Scott, Schorch, and ATB, maintaining a strong position in oil and gas, petrochemicals, and mining industries worldwide.
Explosion-proof Products Advantage
Our motors are engineered for reliability and durability in hazardous environments. Widely applied across petroleum, chemical, and coal mining sectors, these products have certified compliance with ATEX, IECEx, and EAC standards.
WOLONG's strategic acquisitions have united some of the most trusted names in the electric motor sector under a unified, high-technology framework.
WOLONG acquired 97.94% of the Austrian ATB Group (ATB motor), establishing a solid foothold in Europe's motor market. The acquisition brought together Morley, with its 130-year history in underground coal mining equipment, and Laurence Scott, a specialist supplier of low-starting-current naval and nuclear generators that received the Queen's Award for three consecutive years.
Welcoming Brook Crompton Motors into the group introduced over a century of motor design experience. Brook Crompton is recognized for developing energy-efficient low, medium, and high-voltage motors, including the "W" and "10" series designed for operations in hazardous and harsh industrial environments.
Founded in 1882, Germany's Schorch Electric Motor joined the WOLONG group, expanding capabilities in heavy-duty drive systems for petrochemicals, oil and gas, shipbuilding, and wastewater systems.
Wolong's joint operations with OLI, a global leader in MVE vibration motors and Ex vibration sensors, began in 1999. In 2015, WOLONG acquired CNE (China's Nanyang Explosion-proof Group), integrating specialized research and production capabilities for explosion-proof applications in coal, metallurgy, and nuclear power.
The integration of GE Industrial Motors added substantial design and manufacturing expertise for heavy industries, including oil and gas, materials processing, cement, and water treatment plants.
WOLONG's Chinese manufacturing base combines advanced engineering standards with localized manufacturing advantages to deliver high-quality, cost-effective motor solutions.
Our plants utilize digital workflows, fully automated stator winding stations, and CNC machining processes. This integration ensures structural tolerances are maintained across high-volume production runs.
Every motor undergoes testing in our certified test centers, verifying dynamic balancing, insulation resistance under simulated load, and thermal stability to match ATEX, IECEx, and CSA requirements.
By managing critical components in-house—including casting, winding, and precision machining—we mitigate global supply chain challenges, enabling predictable lead times for our partners.
WOLONG's electric motor designs are certified by international organizations, ensuring performance compliance across regional regulatory frameworks.
Nemko / ATEX
CSA Group
CE Mark
CCC / CC
SABS (South Africa)
TESTSAFE Ex
WOLONG's manufacturing facilities are certified to ISO 9001 standards, establishing quality management protocols that govern the entire manufacturing lifecycle, from material traceability to final product verification.
To comply with North American standard specifications, WOLONG conducts tests for insulation resistance, starting current, efficiency levels, and load vibration, with certifications through UL and CSA.
Designed for operation in global explosive atmospheres, our low- and high-voltage motors are certified to ATEX and IECEx standards, facilitating compliance for export to European and international markets.
Certified by TestSafe, the safety certification body for mining equipment in the Southern Hemisphere, WOLONG's coal mining motors meet Australian safety regulations, supporting integration into localized mining fleets.
A detailed look at the engineering of our motor components, designed for long-term operational reliability.
Our stator coils are manufactured using high-grade polyester film reinforced with glass cloth. We utilize low-powder or medium-powder mica tape with a high mica content to optimize dielectric strength. The winding assembly undergoes a Vacuum Pressure Impregnation (VPI) process to create a void-free, moisture-resistant insulation system. This engineering process ensures thermal stability, high mechanical strength, and reliable electrical insulation under transient voltages.
We supply squirrel cage rotors fabricated using centrifugal aluminum casting or high-pressure die-casting processes, which integrate the rotor bars and end rings into a single-piece component. This design provides high starting torque and dynamic balance. For larger high-voltage motors, copper bar rotors are used, featuring welded end rings and a protective retention ring designed for high-speed dynamic stability.
Engineered using multi-physics structural and fluid simulation software, the motor frame is constructed from cast iron or heavy-welded steel. The design provides structural rigidity, heat dissipation, and vibration isolation. The frame is engineered to withstand high mechanical shocks while minimizing vibration, contributing to lower operating temperatures and extended bearing life.
The cooling assembly includes an aerodynamic fan cover body, air guide cylinder, protection window, and silencer plate. This lightweight, compact system is designed to minimize airflow restriction and overall operating noise. Side-entry air intakes direct flow around obstacles, while sound-absorbing lining materials reduce noise propagation. The fan cover features an IP22 rating, preventing direct contact with rotating elements.
Providing customized industrial drive solutions across major global energy, chemical, and mineral sectors.
Our motors operate in hazardous environments, driving high-pressure compressors, injection pumps, and fans. With ATEX/IECEx Zone 1 and Zone 2 explosion-proof configurations, these units provide safe, continuous operation under high thermal stresses.
Morley and CNE flameproof motors are designed to withstand mechanical impact, coal dust exposure, and humid environments. Built to meet TESTSAFE and ATEX safety directives, they drive coal shearers, armored conveyors, and ventilation fans.
Laurence Scott brushless synchronous motors and Schorch induction drives provide safety-class solutions for critical cooling pumps and draft fans within conventional thermal and nuclear power plants worldwide.
Engineered for corrosion resistance, our marine-duty motors operate in pump systems, water filtration lines, and auxiliary thrusters, complying with international classification societies for maritime and civil water systems.
The global industrial drive sector is shifting toward higher efficiency and integrated intelligence. Key developments include:
Industrial procurement decisions increasingly prioritize the Total Cost of Ownership (TCO) over initial capital expenditure. Our team supports global buyers through:
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