Explore our leading industrial line-start AC induction motors, variable frequency drives, and certified hazardous-area synchronous motors.
As the authorized master distributor of Wolong Electric Drive Group Co., Ltd, Shaanxi Nanfang Motor Technology Co., Ltd bridges the gap between global industrial infrastructure projects and Wolong's world-leading electrical propulsion technologies. Founded in 1984 and listed on the Shanghai Stock Exchange in 2002 (code SH600580), Wolong has spent over 30 years scaling its manufacturing expertise, establishing 3 dedicated primary manufacturing bases, 39 modern factories, and 3 state-of-the-art R&D centers across the globe.
Wolong's global reach is strengthened by its strategic acquisition of highly esteemed, century-old motor brands. This includes the acquisition of the Austrian ATB Group (ATB Motor) in 2011, which brought the legendary mining-grade brand Morley (boasting a 130-year legacy in underground extraction environments) and Laurence Scott (renowned for custom low-starting-current marine and nuclear-safe drives) into the fold. Furthermore, Brook Crompton Motors, Schorch, OLI vibration systems, Nanyang Explosion-proof Group (CNE), and the commercial/industrial motor division of General Electric (GE) operate in cohesion under the Wolong umbrella to offer a unified, comprehensive drive technology portfolio.
Pioneering the next generation of energy efficiency through structural, magnetic, and thermal design improvements.
Utilizing high-grade non-oriented silicon steel sheets with thinner laminations (down to 0.35mm) to dramatically reduce eddy current and hysteresis losses in the stator core under high magnetic flux density.
Transitioning toward hybrid permanent magnet technologies that offer flat efficiency curves across a wide range of speeds and loads, outperforming traditional induction architectures in partial-load states.
Refining aerodynamic profiles and internal rotor duct geometries to ensure even heat dissipation, thereby preventing high localized winding temperatures and guaranteeing standard IE4 performance.
Super Premium Efficiency (IE4) and Ultra Premium Efficiency (IE5) motors represent a critical evolution in industrial electrical drives. By strictly adhering to IEC 60034-30-1 testing standards, Wolong's IE4 motors achieve a 15% to 20% reduction in internal energy losses compared to standard IE3 motors. This is achieved by combining optimized rotor bar cross-sections with refined stator slot designs, increasing the slot fill factor to maximize electromagnetic power transmission. Looking forward, the tech roadmap focuses heavily on digital twin-assisted operations, integrating IoT temperature, current, and vibration sensors directly into the stator core to predict maintenance cycles before a physical fault occurs.
A deep look at the structural integrity, winding insulation, and rotor aerodynamics that characterize Wolong's industrial motor platforms.
Delivering high-durability propulsion and safety systems engineered for the harshest industrial processing conditions.
Our ATEX/IECEx certified explosion-proof motors (such as the YE5, YVF, and WEX3 series) provide high-torque, flameproof protection (Ex d, Ex de) for pumps, compressors, and refining centrifuges in zone 1 and zone 2 hazardous areas.
Built on the heritage of the Morley brand, we supply dust-ignition-proof motors, coal shearer cutting motors (YBC series), tunnel boring machine drives (YBU/YBUS/YBUD), and conveyor motors (YBS) capable of handling extreme shock loads and abrasive atmospheres.
Wolong high-voltage motors (Y3, YKS, YVF) are optimized for large-scale municipal water pumps, power station boiler draft fans, and cooling towers. Designed with Laurence Scott low-starting-current technology for grid stability.
Combining automated manufacturing with global R&D networks to ensure rapid delivery and consistent product quality.
Wolong's transition to Factory 4.0 standards is built around digitized production lines, automated CNC machining centers, and automated wire winding machines. This high level of automation keeps manufacturing tolerances within microns, ensuring reliable air gap concentricity and minimizing stray load losses. By centralizing core component production in China and coordinating with R&D hubs in Europe (Austria and Germany) and Japan, Wolong achieves an efficient balance of cost and performance.
This global supply chain model ensures resilience against material shortages and shipping disruptions. Stator winding, rotor dynamic balancing (to G1.0 quality grade), and the VPI insulation process are all monitored via automated control systems. Real-time logging of parameters—such as impregnation pressure, vacuum levels, and oven curing temperatures—provides complete traceability for every motor built. This digital framework enables Shaanxi Nanfang Motor to deliver heavy industrial drives with shorter lead times than traditional suppliers.
State-of-the-art robotic winding systems and dynamic balancing rigs minimize manual error, producing extremely balanced, low-vibration rotors that extend bearing life.
With localized raw material sourcing (high-permeability electrical steel, high-purity copper) and in-house casting facilities, Wolong is insulated from external supply chain shocks.
Our motors are certified by leading international testing bodies to ensure seamless operation in regulated markets worldwide.
We maintain a comprehensive certification portfolio to meet the rigorous safety and performance standards of global markets:
Key technical parameters and performance indicators to evaluate when sourcing high-power industrial AC drives.
| Parameter / Criteria | Standard Specifications | Custom Engineering Options |
|---|---|---|
| Efficiency Class | IE4 (Super Premium) / IE3 (Premium) | IE5 (Ultra Premium PM Motors) |
| Hazardous Area Rating | Ex d IIC T4 Gb / Ex tb IIIC T135°C Db | Ex de, Ex e, Class I Div 1 / Div 2 |
| Frame Designations | Cast Iron (EN-GJL-200/250) | Fabricated Steel for Heavy HV Applications |
| Insulation Class | Class F (Temp Rise Class B limit) | Class H (VPI Impregnated, High-Mica Tape) |
| Cooling Configurations | IC411 (Self-Ventilated) | IC416 (Forced Vent), IC611 (Air-to-Air Heat Exchanger) |
Detailed technical answers addressing the key design, performance, and application questions of motor buyers.
Explore our high-voltage, dust-proof, synchronous, and tunnel boring machine motors designed for severe duty applications.
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