Explore our elite selection of global-standard low & high voltage AC motors tailored for major heavy-duty applications.
Shaanxi Nanfang Motor Technology Co., Ltd. proudly serves as the authorized global distributor of Wolong Electric Drive Group Co., Ltd. Founded in 1984 and listed on the Shanghai Stock Exchange (SH600580) in 2002, Wolong has solidified its posture as a dominant global manufacturer of electric motor and drive systems.
With 3 major manufacturing bases, 39 advanced factories, and 3 state-of-the-art global research & development centers, Wolong commits to a rigorous global brand strategy. By integrating leading motor technologies from Europe, Asia, and North America, Wolong consistently delivers top-tier reliability, efficiency, and engineering precision to critical heavy-duty sectors, including Oil & Gas, Mining, Power Generation, and Infrastructure.
Exploring how energy regulations, digitalization, and mechanical innovation shape the future of high-voltage industrial applications.
Global climate mandates force industries to prioritize ultra-high efficiency. High-voltage AC motor designs are transitioning to IE4 and IE5 energy-saving topologies, specifically leveraging permanent magnet technologies to maximize efficiency curves and minimize operational expenses.
Integration of real-time vibration sensors, thermal imagers, and dynamic insulation monitors enables modern manufacturing plants to employ predictive maintenance. Cloud-connected diagnostic tools dramatically reduce unexpected downtime and lengthen machinery life.
Operating a high-voltage motor requires customized variable frequency drive (VFD) pairing. VFD-optimized high-voltage motors are built with specialized insulation configurations to withstand repeated electrical stress peaks and harmful harmonics generated by switching power electronics.
Delivering high-reliability drive architectures that excel under hazardous, heavy-torque, and continuous-run operations.
We supply positive-pressure (Ex p), flameproof (Ex d), and non-sparking (Ex n) high-voltage motors tailored for high-risk Zone 1 and Zone 2 plants. Fully accredited with ATEX, IECEx, and CE certifications, these motor setups guarantee secure operational control in high-concentration explosive atmospheres.
Leveraging the 130-year legacy of the Morley brand, we supply heavy-duty mine conveyor drives and cutting motors that tolerate extreme dirt, high moisture, and severe vibration stresses. Standard protection modes are integrated directly into the motor frames.
Our large scale Laurence Scott induction motors feature low starting currents and robust thermal capabilities, providing stable drive units for nuclear plants, heavy cooling water pumps, boiler feed pumps, and municipal water treatment compressors.
Combining the heritage of Europe and America's legendary motor innovators under one global strategic banner.
Acquired in 2011, ATB is one of Europe's top three motor manufacturers. Within ATB, Morley Motors brings over 130 years of underground coal mining expertise, representing the highest standards of safety and robustness. Laurence Scott provides premium nuclear-grade low-starting-current motors and naval ship generators.
Boasting a century of engineering masteries in motor technology, Brook Crompton developed the premium W-series and 10-series energy-efficient motors. They specialize in high-reliability adjustable speed packages for harsh and hazardous operations globally.
Dating back to 1882, Schorch represents the gold standard for high-power, high-voltage drive systems. They deliver custom drive packages for tunnel ventilation, metal processing, test stations, petrochemical pipelines, and marine platforms.
Collaborating since 1999, OLI holds the largest global market share in industrial vibration technology. OLI vibration motors and Ex-certified vibration sensors provide key diagnostics and sorting power in bulk material handling and mining industries.
In 2018, General Electric's industrial motor division joined WOLONG. As a historic leader in commercial power machinery, GE brings unparalleled structural designs and engineering experience, strengthening WOLONG's presence in oil refineries, paper mills, and cement industries.
Take an inside look at how high-grade raw materials and sophisticated insulation techniques combine to withstand electrical and mechanical stress.
Our rotor platforms use squirrel cage configurations. For medium-sized motors, centrifugal cast aluminum or advanced die-casting delivers a single-piece construction, integrating rotor bars and end rings seamlessly for superior starting torque.
For larger high-voltage models, pure copper bars are fitted with precision securing and end ring welding procedures. High-speed models are protected by custom containment ring designs to maintain integrity under heavy centrifugal strain.
Our stator coils use high-purity mica tape combined with polyester film and structural glass cloth backings. These coils undergo state-of-the-art Vacuum Pressure Impregnation (VPI) with solventless epoxy resin.
The VPI treatment completely eliminates air pockets within the windings, resulting in high dielectric strength, resistance to moisture ingress, thermal resilience up to Class H, and immunity to mechanical vibration wear.
Developed using structural and fluid dynamics multi-physics modeling software, our high-strength cast iron and steel frames feature built-in mechanical safety margins.
The exterior fin arrangement increases heat dissipation area, minimizing thermal hot spots and lowering operating temperatures. Natural frequency margins are engineered into the frame to isolate operational harmonics, keeping vibration levels low.
The low-noise ventilation hood assembly includes an integrated air guide cylinder, protection window, and high-performance silencer plates.
The side-entry air inlet prevents backpressure blockages. Sound-absorbing materials inside the hood reduce acoustic energy loss, bringing noise levels well below industrial limits. The entire assembly meets IP22 finger-safe ratings.
Our manufacturing sites hold worldwide compliance certificates, ensuring zero regulatory friction at national borders.
Nemko/ATEX
CSA
CE Standard
CCC
SABS
TESTSAFE
Developing next-generation electric motor designs that prioritize high power density and environmentally conscious materials.
Utilizing high-grade silicon steel laminations with minimal loss factors. Integrating automated laser-welding assemblies to eliminate air gaps, optimizing magnetic flux paths, and increasing motor electrical efficiency to IE5 levels.
Replacing traditional solvent-based varnishes with bio-based VOC-free epoxy resins. These next-generation resins offer superior thermal conductivity, higher chemical resistance, and lower environmental impact during manufacture.
Embedding wireless, self-powered micro-sensors directly inside the stator core and bearings. These sensors stream operational temperature, vibration, and insulation integrity data to local SCADA networks via secure protocols.
Common questions answered by our engineering and compliance specialists to aid your purchasing decisions.
Review our specialized high-voltage variable frequency, dust-proof, and flameproof motor solutions below.
NANFANG
