Engineered for extreme performance, certified safety, and industry-leading operating efficiency
Shaanxi Nanfang Motor Technology Co., Ltd serves as the authorized distributor of Wolong Electric Drive Group Co., Ltd. Founded in 1984 and listed on the Shanghai Stock Exchange in 2002 (code SH600580), Wolong has ascended to the pinnacle of the global electric machine manufacturing industry.
With a strategic emphasis on international brand integration, Wolong runs 3 global manufacturing bases, 39 advanced factories, and 4 dedicated R&D centers worldwide. By merging elite technical heritages from across Europe and the Americas, we deliver unparalleled engineering precision in three-phase electric motors, variable frequency drives, and systemic industrial controls.
Discover Global InfrastructureHow Wolong integrated the world's most robust industrial motor brands to forge an engineering powerhouse
Advanced Automated Rotor Manufacturing Line
Accumulated with abundant assets and brilliant experiences in manufacturing, WOLONG started to reach for higher attempts. To be the leading manufacturer of AC motors & drives worldwide, WOLONG strove to acquire elite overseas groups, creating an integrated technology platform that benefits clients globally.
In 2011, WOLONG company acquired strong technical and technological support by purchasing 97.94% of the Austrian ATB Group (ATB motor), one of the three major European motor manufacturers. This acquisition positioned WOLONG as the controller of ATB Group, which includes historically prominent brands like Morley in the mining industry and Laurence Scott in the power and defense sectors.
Closely linked to underground coal mining. Morley brand is highly esteemed in the global underground coal market, synonymous with safety, power, and rugged reliability under explosive gas conditions.
The pioneering company that supplied motors for British nuclear power plants and naval vessels. Renowned for design systems utilizing low starting currents. Received the Queen's Award for three consecutive years.
Joined Wolong in 2011. Set standard for high-quality motors, driving petrochemicals, power plants, shipbuilding, test stations, and municipal wastewater networks globally.
Furthermore, Brook Crompton Motors joined the WOLONG group. Brook motor stands as a venerable and profoundly skilled participant within the electric motor sector, boasting over a century of mastery in motor technology and design. Brook Crompton has developed a complete range of low, medium, and high voltage AC motors, including the premium Brook Crompton “W” and “10” series, which are engineered for hazardous and harsh environments.
In 1999, WOLONG jointly started a business with OLI vibration motor in China, consolidating its dominance in vibration motors (MVE) and explosion-proof vibration sensors.
In 2015, WOLONG Electric Nanyang Explosion-proof Group Co., Ltd. (CNE), China's largest explosion-proof motor scientific research and production base, officially merged into the group. This strategic consolidation created an unmatched portfolio of low/high voltage explosion-proof motors, primarily utilized in oil, chemical, gas pipeline, and metallurgical projects.
In 2018, the industrial division of General Electric (GE) joined the ranks of WOLONG. As the oldest developer of commercial and industrial electrical machines, GE's integration bolstered Wolong's capacity to serve heavy industries, including petrochemicals, water treatment, mining, and pulp/paper, worldwide.
Addressing core requirements of system designers, pump OEMs, and heavy industry operators
Comprehensive compliance for hazardous operations. We provide flameproof (Ex d), increased safety (Ex e), non-sparking (Ex nA), and dust explosion-proof (Ex tD) motors certified by PTB, Nemko, CSA, and Baseefa.
Minimize the operational cost of centrifugal pumps, which account for over 25% of industrial energy use. We supply standard asynchronous and advanced Permanent Magnet (PM) synchronous systems.
Direct shaft coupling, custom flange options (IM B3, B5, V1 configuration), special bearings to endure radial/axial thrust loads of vertical or horizontal centrifugal pumps.
Combining world-class engineering standards with the power of China's industrial ecosystem
As a global pioneer in advanced motor cultivation, Wolong’s Chinese manufacturing hubs offer significant strategic benefits:
Exploring the precision components that drive our unmatched durability and system efficiency
Features a heavy-duty squirrel cage design. Utilizes centrifugal casting or high-pressure die-casting to integrate rotor bars and end rings, ensuring superb torque characteristics and high durability. Copper bar structures are utilized on high-voltage and large-capacity models for maximum efficiency.
Constructed with high-mica content tape, polyester films, and glass cloth reinforcements. Processed through a state-of-the-art Vacuum Pressure Impregnation (VPI) line. The result is a highly dense, moisture-proof, and chemically resistant winding structure with supreme insulation.
Engineered through fluid-dynamics and multi-physics structural simulation platforms. Formed from high-grade cast iron or structural steel. Offers robust heat dissipation fins, high mechanical shock absorption, and high frequency isolation margins to reduce vibrations during operation.
Features an aerodynamic air guide cylinder, protective windows, and silencer plates. Compact, lightweight, and sound-absorbing. Side air intake layout avoids obstacles and limits energy loss, meeting IP22 safety specs to prevent accidental physical contact.
Assuring complete alignment with country-specific regulations and safety directives
- ISO 9001 Standard: WOLONG is an ISO 9001 certified Ex motor manufacturer. Compliance with ISO standards serves as a critical gateway for surmounting international trade barriers and ensuring consistent quality management.
- NEMA Standard: To verify that our motors meet NEMA mechanical and electrical performance specs, we conduct thorough testing including: efficiency, insulation resistance, starting torque and current, thermal limits, and structural vibration tests. For low-voltage motors, WOLONG holds UL and CSA certificates.
- IECEx and ATEX standard: Crucial for the European Union and other international regions, we possess extensive ATEX and IECEx certifications for low, medium, and high-voltage explosion-proof motors.
- TESTSAFE standard: As the leading coal product certification body in the Southern Hemisphere, acquiring Testsafe has paved the way for Chinese coal mining motors to enter the Australian market and other high-specification global mining sectors.
Delivering optimal fluid driving power across global infrastructure projects
Powering heavy-duty pipeline centrifugal pumps, refinery feed pumps, and LPG transfer pumps. Our flameproof (Ex d) motors operate in Class I Div 1 and Zone 1/2 environments without risk of ignition.
Driving large axial flow pumps, booster stations, and reverse osmosis high-pressure pumps. The IE4/IE5 efficiency and robust insulation systems provide trouble-free continuous duty (S1).
Providing electric drives for mine dewatering pumps, coal washing pumps, and slurry handling systems. Capable of surviving heavy vibration, high humidity, and acidic mining environments.
A strategic blueprint for engineering procurement managers and industrial system integrators
When sourcing 3 Phase Centrifugal Pump Motors, procurement officers must look beyond the initial purchase cost. A motor's total cost of ownership (TCO) consists of 90%+ electrical consumption over its operating lifetime. By shifting to premium efficiency classes (IE3, IE4, or permanent magnet IE5), plants achieve payback within 12 to 24 months.
Furthermore, mechanical compatibility with centrifugal pumps requires careful alignment of shaft tolerances, radial load thresholds, and bearing choices. For example, vertical turbine pumps require high-thrust vertical solid shaft (VSS) or vertical hollow shaft (VHS) motors with thrust bearings.
At Shaanxi Nanfang Motor and Wolong, we offer systemized drive solutions. This means delivering not only the electric machine but matching it with tailored Variable Frequency Drives (VFD) to optimize flow rate output and reduce energy waste during low-load intervals.
| Motor Property | Standard Spec | High-Thrust Options |
|---|---|---|
| Efficiency Class | IE3 / IE4 Asynchronous | IE5 Permanent Magnet |
| Insulation Class | Class F (Temp Rise B) | Class H (VPI impregnated) |
| Enclosure Protection | IP55 / IP56 | IP65 / IP66 (Washdown) |
| Bearing Type | Deep Groove Ball Bearings | Angular Contact Thrust Bearings |
Staying ahead of global efficiency mandates and digital transformation initiatives
Integrating vibration sensors (such as OLI Ex sensors) and temperature detectors directly inside bearing housings. Real-time diagnostic data allows operators to perform predictive maintenance, avoiding costly unplanned downtime.
Permanent Magnet Synchronous Motors (PMSM) are replacing traditional induction motors in variable speed pump applications. They provide exceptional efficiency even during partial-load conditions, cutting power consumption.
Designing smaller, lighter explosion-proof enclosures. Using simulated multi-physics fields allows engineers to cut cast iron thickness while maintaining safe casing limits, lowering motor weight.
Detailed technical advice for project engineers and procurement specialists
Heavy-duty engineering solutions for the most challenging fluid handling applications
NANFANG
