Explore our highly-certified range of industrial low-voltage AC induction motors engineered for efficiency, reliability, and extreme operational safety.
Shaanxi Nanfang Motor Technology Co., Ltd operates as the premier authorized global distributor for Wolong Electric Drive Group Co., Ltd. Founded in 1984 and listed on the Shanghai Stock Exchange in 2002 (code SH600580), Wolong has transitioned from a localized manufacturing facility into a dominant global pioneer of advanced motor designs, drive controllers, and integrated power transmission solutions.
Supported by 3 strategic primary manufacturing bases, 39 high-capacity factories, and 3 state-of-the-art research and development centers globally, Wolong maintains leadership in energy efficiency, structural research, and international product compliance. Shaanxi Nanfang Motor Technology serves as the strategic link connecting these top-tier engineering resources with worldwide procurement networks, providing comprehensive technical consulting and logistics execution.
Read Shaanxi Nanfang OverviewBy integrating century-old global engineering leaders, Wolong has combined top-tier technology platforms to serve the world's most demanding industrial sectors.
Acquired in 2011, ATB is one of Europe's top three motor manufacturers. Known for high-spec engineering, its portfolio includes ATB, Laurence Scott, and Morley, supporting heavy oil, gas, and utility applications globally.
With a 130-year legacy in underground coal mining drives, Morley represents extreme mechanical safety. It delivers specialized heavy-duty conveyor and cutting motors engineered to withstand severe shock and volatile environments.
A pioneer in low starting current motors for nuclear applications and naval vessels. The brand specializes in high-integrity generation systems, earning the Queen's Award for Enterprise multiple times.
Highly regarded for high-efficiency design. Brook Crompton leads in energy-saving motors, offering comprehensive low, medium, and high-voltage AC models like the high-efficiency "W" and "10" series for harsh industrial sites.
Established in 1882, Schorch sets standards in heavy-duty drive systems. It provides robust electrical equipment for petrochemical, municipal water, marine testing, and critical infrastructure tunnels worldwide.
Partnering with Wolong since 1999, OLI is a global leader in electric vibration motors (MVE) and Ex-certified vibration sensors, delivering high-frequency, reliable engineering across processing industries.
Acquired in 2015, CNE is China's largest specialized R&D and manufacturing base for explosion-proof motors, supporting petrochemical, military, mining, and nuclear power projects.
Joining Wolong in 2018, GE Industrial Motors brings a rich heritage in heavy-duty commercial and industrial electric design, enhancing Wolong's offerings for material processing, pulp & paper, and water treatment.
Procuring low-voltage motors from China offers strategic benefits in scale, material access, and advanced manufacturing. By integrating key resources directly at the source, Wolong ensures competitive pricing and short lead times.
Our vertical supply chain integration spans copper winding wire draw lines, high-grade silicon steel sheet slitting, in-house high-pressure aluminum die-casting, and robotic CNC frame machining. This setup reduces reliance on third-party suppliers and ensures strict quality control throughout manufacturing.
Combined with Shanghai's central research resources and our global manufacturing sites, this ecosystem allows Shaanxi Nanfang Motor Technology to supply highly customized, large-scale motor shipments that meet challenging deadlines.
Our motors are engineered to comply with strict international regulatory frameworks, facilitating smooth customs clearance and secure operations worldwide.
Wolong manufactures to ISO 9001 standards. Motors destined for North America undergo testing for NEMA mechanical requirements, including starting current, torque profile, insulation resistance, and sound pressure.
For hazardous and classified areas, we maintain valid ATEX (Europe) and IECEx (Global) certificates. These certify our flameproof (Ex d), increased safety (Ex e), and non-sparking (Ex nA) low and high-voltage motors.
Acquiring TestSafe certifications has opened pathways for our mining motors to enter Australia and New Zealand, providing compliance for underground coal mine operations and industrial applications.
A detailed view of the structural features and components that enable our low-voltage AC induction motors to deliver reliable performance.
The rotor features a squirrel cage design, utilizing cast aluminum rotors. These rotors are produced using centrifugal aluminum casting or high-pressure die-casting techniques, where molten pure aluminum is poured into the slots of the rotor core, creating a single-piece construction that integrates the rotor bars and end rings. The structural design of these cast aluminum rotors ensures reliability and delivers high torque properties. For larger capacity applications, copper bar rotors are used, which benefit from secure bar fixing and end-ring welding procedures. Additionally, the protective ring design of high-speed motors supports the stable operation of the copper bar rotor under variable centrifugal stresses.
The stator coil is insulated with polyester film and reinforced glass cloth, utilizing low-powder mica tape with a high mica content or medium-powdered mica tape. Following the wire insertion process, the complete assembly undergoes the Vacuum Pressure Impregnation (VPI) cycle, producing a clean, sealed stator core. The winding and insulation systems are designed to provide electrical performance, mechanical strength, moisture resistance, and thermal stability under varying thermal loads.
The motor frame is designed using a digital platform for structural and fluid multi-physics simulations. This simulation platform incorporates mature, high-strength cast iron (or steel as an alternative) to maintain structural integrity. The frame design features structural redundancy and heat dissipation properties, providing sufficient natural frequency isolation margins to minimize vibrations. It is engineered to withstand mechanical shocks, control vibration, and maintain low temperature rise profiles during continuous duty.
The low-noise fan cover system comprises a fan cover body, an air guide cylinder, a protective window, and a silencer plate. Its compact structure and lightweight design facilitate vibration reduction. The air inlet is situated on the side, which optimizes the avoidance of obstacles behind the motor, minimizing adverse effects on ventilation and reducing noise caused by energy loss during propagation path changes. The system also incorporates sound-absorbing materials that absorb noise, thereby lowering the overall motor noise. Additionally, the fan cover is rated IP22, ensuring that hands cannot come into contact with the fan.
We maintain active registrations and type approvals across major regional standards organizations, supporting compliance for global operations.
Understanding the transition to higher efficiency and smart monitoring in global motor installations.
Driven by carbon neutrality targets, global energy regulations are phasing out older IE2/IE3 motors. Wolong offers IE4 and ultra-efficient IE5 Permanent Magnet (PM) synchronous motors that run cooler, consume less power, and reduce total cost of ownership.
Using Variable Frequency Drives (VFD) helps optimize flow rates in fans and pump stations, cutting electricity use by up to 50%. Our variable frequency three-phase motors (like the WEBP3 and BPY-S30 series) feature reinforced corona-resistant insulation systems.
Integrating IoT vibration, temperature, and current sensors allows plant operators to move from reactive repairs to predictive maintenance schedules, helping prevent unexpected downtime on critical lines.
Wolong's range of low, medium, and high-voltage motors is designed for various industrial equipment applications:
Read detailed technical answers on low-voltage motor procurement, engineering compliance, and maintenance practices.
Explore our high-voltage wound rotor induction motors, specialized coal mining drives, and variable frequency solutions.
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