Engineered for extreme performance and certified for hazardous environments.
Insight into global decarbonization, regulatory shifts, and technological transition within the heavy industry.
The global Low Voltage (LV) motor market represents the operational backbone of modern industrial automation, fluid dynamics, and process manufacturing. Driven by aggressive international climate directives, such as the European Green Deal and the USA's updated Energy Policy and Conservation Act (EPCA), the demand for high-efficiency low-voltage induction and permanent magnet synchronous motors (PMSMs) is growing rapidly. Industry analysts project the global low voltage motor market will expand at a compound annual growth rate (CAGR) of 6.2% through 2030, driven by the transformation of traditional heavy industries into smart, automated ecosystems.
In regions such as North America, the European Union, and Asia-Pacific, electric motors consume over 50% of all generated electricity. Consequently, migrating from older, inefficient motor technologies (like IE1 and IE2) to highly efficient models (such as IE3, IE4, and the latest IE5 super-premium efficiency systems) is a priority for energy optimization. Wolong Group, as a global leader in electric drives, is at the forefront of this industrial transformation. By leveraging localized supply chains and robust R&D networks across China, Europe, and Japan, Wolong addresses the specific requirements of global infrastructure, including heavy mineral extraction, oil refining, municipal water treatment, and marine engineering.
Shaanxi Nanfang Motor Technology Co., Ltd. is the authorized distributor of Wolong. Founded in 1984, Wolong Electric Drive Group Co., Ltd. achieved a successful listing on the Shanghai Stock Exchange in 2002 (code SH600580). Over more than 35 years of strategic expansion and engineering leadership, Wolong has established a global footprint that includes 3 primary manufacturing bases, 39 state-of-the-art factories, and 3 high-tech R&D centers worldwide.
Wolong remains dedicated to the core manufacture of motors and control systems, executing a global brand strategy that positions it as a leader in R&D, manufacturing processes, and global sales. Through this strong partnership, Shaanxi Nanfang Motor Technology delivers Wolong's comprehensive line of low-voltage, medium-voltage, and high-voltage motors to international markets, ensuring local technical support and project execution.
Over a century of combined motor manufacturing expertise integrated under one global industrial leader.
Acquired in 2011, ATB is one of Europe's top three motor manufacturers. The group includes Morley, with nearly 130 years of history in underground coal mining equipment, and Laurence Scott, known for manufacturing low-starting-current motors for British nuclear power plants and naval vessels. Following its acquisition by Wolong, Laurence Scott has been honored with the Queen's Award for Enterprise for three consecutive years.
A venerable brand in the electric motor sector, Brook Crompton has over a century of mastery in motor design. Known for energy-efficient products, they offer a complete range of low, medium, and high-voltage AC motors, including the Brook Crompton "W" and "10" series. These motors are optimized for harsh environments and can be paired with adjustable-speed drive systems.
Established in Germany in 1882 and joining Wolong in 2011, Schorch sets high standards for heavy-duty drive systems. Schorch designs are highly regarded in oil and gas, petrochemicals, power generation, water management, shipbuilding, steel processing, and ventilation tunnels.
Dating back to 1999, Wolong established a strategic business partnership with OLI. Today, OLI is a leading global brand for vibration motors (MVE) and Ex-rated vibration sensors, widely used in bulk material handling, screening, concrete compaction, and chemical processing.
Joining Wolong in 2015, CNE is China's largest research and production base for explosion-proof motors. The Nanyang division provides a wide range of explosion-proof low-voltage asynchronous and high-voltage motors, which are widely applied in petroleum, chemical processing, coal mining, metallurgy, and nuclear power projects.
In 2018, GE's commercial and industrial electrical equipment division joined Wolong. This integration combined GE's manufacturing experience and technologies with Wolong's platform, strengthening global capabilities in oil and gas, mining, water treatment, and materials processing.
A detailed look at Wolong's precision manufacturing processes and digital simulation designs.
Our motor rotors feature a robust squirrel-cage design, with cast aluminum components utilized across our standard series. These are manufactured using centrifugal aluminum casting or die-casting techniques, where molten high-purity aluminum is injected into the rotor core slots. This process creates a single-piece construction integrating the rotor bars and end rings, ensuring reliable operational torque characteristics.
For high-capacity low-voltage and medium-voltage motors, copper bar rotors are used. These feature welded copper bar-to-end-ring connections and reinforced protection rings for high-speed operation, ensuring mechanical stability under high centrifugal loads.
Our stator coils are insulated with polyester film and glass cloth, combined with low-powder mica tape or medium-powder mica tape. This assembly is processed using Vacuum Pressure Impregnation (VPI), which helps eliminate air pockets, enhances moisture resistance, and improves thermal dissipation.
The winding system is designed to provide high electrical insulation strength and mechanical durability, preventing failures under sudden thermal expansion, variable frequency operation (VFD), or voltage surges.
Engineered using digital simulations for structure and fluid dynamics, our motor frames are constructed from high-tensile cast iron or fabricated structural steel. The design provides structural stiffness and thermal dissipation, with frame resonance frequencies engineered away from motor operational speeds to minimize vibration.
This design allows the motor to withstand mechanical shocks, resulting in lower vibration and temperature rise during operation.
Our low-noise fan cover system includes a shaped cover body, air guide cylinder, protective window, and a built-in silencer plate. The side-entry air inlet design optimizes airflow pathways around the motor housing, reducing noise levels associated with air turbulence and energy loss.
The system is integrated with sound-absorbing materials and is rated IP22, protecting operating personnel by preventing direct contact with the fan blades.
Ensuring safety and reliability across international industrial standards.
Wolong operates as an ISO 9001-certified motor manufacturer, maintaining strict quality control systems from design to testing. This compliance provides a baseline for reliable operations and helps mitigate risks in demanding applications.
For the North American market, our low-voltage electric motors undergo extensive testing—including efficiency, starting current, torque, and insulation resistance tests—to secure UL and CSA certifications in compliance with NEMA standards.
Designed for hazardous atmospheres, Wolong's explosion-proof and low-voltage motors are fully certified under IECEx and ATEX directives, enabling safe deployment in chemical plants, oil refineries, and gas terminals across Europe and globally.
With certification from TestSafe, a major coal product certification body in the Southern Hemisphere, Wolong's mining-duty motors are approved for deployment in underground operations and hazardous coal fields in Australia.
Our products carry the CE mark, indicating conformity with European safety and environmental standards, and are SABS certified for performance in Southern African markets.
For Russia and the Eurasian Economic Union, our motors carry CU-TR (EAC) certification, verifying that the explosion-proof parameters meet local safety requirements.
Nemko/Atex
CSA
CE
CC
SABS
TESTSAFE
How our low voltage electric drives perform in demanding industrial conditions.
From refinery extraction pumps to high-pressure gas compressors, our motors utilize positive-pressure shell designs (YZYKS series) and dust explosion-proof technologies (YFB3/YBX4 series) to ensure safety in hazardous atmospheres.
Underground coal extraction demands high starting torque and thermal stability. Our Morley-designed flameproof mining motors (such as the YBSD conveyor series) offer reliable operation under heavy cyclic loads.
Pumping networks depend on high-efficiency continuous operation. Pairing our variable frequency PMSM motors (WEPM series) with adjustable-speed drive packages helps municipal operators optimize energy consumption and manage water flow rates.
Our motors support critical systems—including industrial fans, compressors, engineering machinery, ventilation systems, cooling towers, and manufacturing assembly lines.
Engineering the next generation of electric drive technology.
As industrial automation advances, Wolong's technology roadmap focuses on three main development pillars: Ultra-High Efficiency Systems, Digital Smart Integration, and Material Optimization.
1. Ultra-High Efficiency Systems (IE5 & Beyond): Wolong is expanding its Permanent Magnet Synchronous Motor (PMSM) lines, such as the WEPM series. By utilizing high-coercivity rare-earth permanent magnets, these motors reduce rotor losses, achieving high efficiency levels even at partial load profiles where induction motors typically experience performance drops.
2. Smart Condition Monitoring (IoT): Modern industrial facilities increasingly rely on predictive maintenance. Our future motor lines feature integrated, explosion-proof vibration sensors (leveraging OLI's expertise) and temperature sensors within the stator windings. Connected to cloud-based diagnostic networks, these smart motors track bearing wear, insulation degradation, and thermal anomalies in real time, helping prevent unscheduled operational downtime.
3. Eco-Friendly Structural Materials: Aligning with global circular economy goals, our manufacturing centers are working to reduce the carbon footprint of motor production. This includes developing lighter cast-iron alloy housings, using water-based varnishes in the VPI insulation process, and designing components that are easier to disassemble and recycle at the end of their operational life.
Technical answers to key operational queries about low voltage motors.
From heavy mining drives to high-efficiency industrial motors.
NANFANG
