Discover our high-performance low, medium, and high-voltage industrial motors engineered under IEC 60034 and global safety requirements.
Shaanxi Nanfang Motor Technology Co., Ltd. stands as the authoritative authorized distributor of Wolong Electric Drive Group Co., Ltd. Established in 1984 and listed publicly in 2002 (SH600580), Wolong has advanced to become a premier pioneer in global motor and drive control technologies.
By operating 3 key corporate manufacturing bases, 39 digitalized factories, and 3 high-tech R&D centers globally, Wolong successfully serves heavy industrial segments across the globe. Our product portfolio ranges from fractional horsepower micro-motors to large-scale, custom-engineered synchronous condenser systems. We deliver unparalleled technical excellence through deep-rooted design platforms conforming strictly to IEC 60034 specifications.
Through our long-term distribution channel, customers secure direct access to original factory pricing, comprehensive quality assurance, factory warranties, and direct design-in assistance from our application engineering divisions.
Our integrated manufacturing facilities deploy advanced automated winding, high-pressure dielectric diagnostics, and digital load test benches. This guarantees that every single electric motor conforms strictly to standard rating classes under demanding structural loads.
Our engineering services enable the optimization of efficiency, reliability, and starting torque characteristics to support our clients' energy goals.
Wolong Electric Drive Group has systematically integrated world-class European and American legacy motor manufacturers, building a powerful global engineering ecosystem.
Wolong acquired 97.94% of the Austrian ATB Group, positioning itself as a direct controller of one of Europe's top three motor manufacturers. This acquisition integrated the legacy mining brand Morley (130+ years of underground coal mining expertise) and Laurence Scott (known for low starting currents, nuclear power stations, and naval generator designs).
The integration of Brook Crompton Motors brought over a century of motor design mastery, pioneering the energy-efficient Brook Crompton "W" and "10" series for harsh industrial tasks. Concurrently, Schorch Electric Motor (established 1882) joined the group, providing premium drive systems for petrochemical and oil & gas industries globally.
In 1999, Wolong established a partnership with OLI, the global leader in industrial vibration motors and sensors. In 2015, China's largest explosion-proof base, Nanyang Explosion-Proof Group (CNE), joined Wolong. This transaction expanded the group's research capabilities and manufacturing scale for hazardous areas (Ex d, Ex e, Ex p motors).
Wolong acquired General Electric's commercial and industrial motor business. Incorporating GE's engineering heritage, this division supports large-scale projects in water treatment, paper processing, chemical refineries, and mining operations across the Americas and global markets.
Every IEC 60034 motor undergoes rigorous digital testing and mechanical modeling to optimize its thermal limits, structural resonance, and electrical parameters.
Our stator windings feature polyester film and reinforced glass cloth, insulated with high-grade mica tapes containing optimal powder density. Following assembly, stator cores undergo Vacuum Pressure Impregnation (VPI).
This process eliminates air pockets within the insulation, providing protection against moisture ingress, chemical degradation, and electrical stress.
Our standard squirrel cage designs utilize centrifugal cast-aluminum configurations. Pure, molten aluminum is dynamically cast directly into the rotor slot profiles for integrated bar and end-ring geometry.
For high-capacity, high-voltage motors, fabricated copper bar designs are employed. High-speed applications use alloy retaining rings to maintain structural integrity under high centrifugal loads.
Using digital multi-physics simulation platforms, we analyze structural mechanics and thermodynamics. Motor frames are cast from high-tensile cast iron or fabricated steel to manage mechanical impact.
The cooling fin structures are designed to provide efficient thermal dissipation and high vibration margins under load.
Our low-noise cooling systems consist of an aerodynamic steel shroud, an internal air-guide cylinder, protective mesh, and integrated sound-damping liners. The side-entry air intake design reduces turbulence and pressure losses.
The entire assembly conforms to IP22 specifications, preventing accidental contact with rotating elements.
Our IEC 60034 motors are designed for heavy-duty industrial applications, offering high reliability in demanding operating conditions.
We provide flameproof (Ex d), pressurized (Ex p), and increased safety (Ex e) motors for explosive atmospheres, designed to meet ATEX, IECEx, and EAC standards.
For tunneling and coal mines, we manufacture water-cooled, high-torque explosion-proof motors (YBBP / YBU series) that resist severe dust, humidity, and mechanical vibration.
Our high-voltage synchronous condensers help stabilize grid reactive power. We also construct customized high-voltage asynchronous motors (YAKK, YAKS) for utility circulation systems.
We leverage advanced manufacturing processes to deliver high-quality, cost-efficient industrial drives globally.
Our factories feature automated winding machines and VPI chambers. These systems reduce labor dependencies, lower production variability, and maintain consistency across large-batch runs.
By securing direct partnerships with local copper rod manufacturers, steel mills, and foundry networks, we stabilize lead times even during global supply chain fluctuations.
Every motor undergoes routine and type tests, including surge comparison tests, polarization index calculations, and dynamic balance verification to ensure field reliability.
Our drive units conform to international standards, simplifying licensing and integration for systems operating in multiple jurisdictions.
Nemko / ATEX
CSA
CE
CCC
SABS
TESTSAFE Certified Mining Drives
Enables the export of specialized explosion-proof mining drives directly to Australia and surrounding Oceania mining sectors.
We continue to refine our drive designs to improve operating efficiency, enhance integration, and lower lifecycle carbon footprints.
We are expanding our range of Permanent Magnet Synchronous Motors (PMSM) and Synchronous Reluctance Motors (SynRM) to meet IE5 efficiency requirements. These designs help reduce operating costs and support sustainability goals.
Optional sensor packages track real-time vibration, stator winding temperature, and bearing health. This data helps identify potential issues early, reducing unscheduled downtime and maintenance costs.
Answers to common questions regarding engineering specifications and international standards for our industrial drive systems.
IEC 60034 defines motor performance, frame sizes, and efficiency classes (IE1 to IE4+) in metric units, while NEMA uses imperial dimensions. In addition to physical dimensions, there are differences in testing methods for efficiency, temperature rise limits, and overload factors. We offer designs to bridge these standard configurations for international projects.
Vacuum Pressure Impregnation (VPI) replaces air gaps within the stator windings with protective resin. This improves heat transfer from the coils, increases mechanical strength against electrical stresses, and protects the winding insulation in humid or chemically aggressive environments.
For high-voltage or larger frame motors, fabricated copper bar rotors are used. Copper's lower resistivity reduces rotor losses and improves starting torque under high-inertia loads. These rotors feature reinforced welding at the end rings and protective containment rings for high-speed operation.
Our motors are certified under ATEX and IECEx frameworks. Depending on the environment, we supply flameproof enclosures (Ex d/db) for containing internal ignition, increased safety designs (Ex e/eb) to prevent sparking, or pressurized systems (Ex p) to exclude explosive gases.
Explore our specialized range of high-efficiency, flameproof, and custom motors engineered for mining, heavy excavation, and power plants.
Get in touch with Shaanxi Nanfang Motor's engineering team for design assistance, custom framing requirements, or factory certification documentation.
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