Engineered for maximum reliability, extreme environments, and high power efficiency. Explore our key motor configurations ready for deployment.
As the authoritative distributor of Wolong Electric Drive Group Co., Ltd. (founded 1984, listed in 2002 under code SH600580), Shaanxi Nanfang Motor Technology bridges global engineering demands with cutting-edge drive systems. Wolong stands at the absolute pinnacle of motor manufacturing, operating 3 major global manufacturing bases, 39 manufacturing factories, and 3 research and development centers worldwide.
By integrating world-class engineering lineages—including Nanyang Explosion-Proof Motor (China's leading safe-area R&D hub), ATB (Austria), Brook Crompton (UK), Morley (Underground Mining specialty), Laurence Scott (Low-starting current applications), Schorch (Germany), OLI (Vibration systems), and the industrial drive capabilities of General Electric (GE)—our supply chain offers a synthesis of historic European engineering excellence and high-capacity, cost-optimized Chinese production.
Explore Corporate CapabilityMaximum operational lifetime, optimized heat dissipation, and superior insulation class architectures detailed from the inside out.
The core rotor configuration features a state-of-the-art squirrel cage architecture, utilizing pure, high-grade cast aluminum components produced through advanced centrifugal or high-pressure die-casting techniques. By melting and injecting pure aluminum directly into the precision slots of the rotor laminations, the rotor bars and end rings are formed as a single, structurally unified component. This removes air pockets, minimizes parasitic losses, and delivers excellent starting and running torque characteristics.
For heavy-duty and large-scale industrial motors, we employ high-grade copper bar rotors, utilizing silver-alloy brazing processes for mechanical securing and high-integrity end ring welding. Further protected by high-speed retaining rings on specialized high-velocity motors, these rotors operate safely under extreme load oscillations without thermal degradation.
Our stator windings use premium polyester-film insulated copper coils reinforced with high-density glass cloth. For superior electrical resistance under variable frequency drive (VFD) stress, windings are wrapped in low- or medium-powder mica tape containing high-density mica platelets.
The assembled core undergoes a complete Vacuum Pressure Impregnation (VPI) cycle. This draws moisture and air pockets out of the insulation voids before injecting high-grade solventless epoxy resin under high pressure. The cured result is a monolithic insulation system with excellent dielectric strength, high mechanical resistance to thermal cycling, low moisture absorption, and thermal stability conforming to Class F and H standards.
To achieve high structural stiffness and low vibration signatures, all motor frames are designed using multi-physics structural and fluid dynamic simulation platforms. Constructed from high-tensile cast iron or fabricated heavy steel plates, our motor frames feature structural reinforcement ribs strategically positioned to prevent mechanical resonance.
These designs feature large cooling surface areas and optimized air paths, helping to maintain low winding temperatures and extend the lifespan of the grease and bearings during continuous operation.
Our low-noise cooling fan design consists of an integrated steel fan cover, air-guide cylinders, protective screens, and acoustic damping plates. This system features side-oriented intakes, allowing for closer installation to structural obstacles without restricting airflow or increasing noise levels from air turbulence.
Equipped with sound-absorbing materials, the fan cover attenuates high-frequency air shear. This ensures compliance with OSHA noise regulations while maintaining an IP22/IP23 rating to protect personnel from rotating parts.
Our motors are engineered and tested to comply with international regulations, allowing direct deployment in global industrial and hazardous markets.
ATEX / IECEx Certification
CSA Standard Mark
CE Conformity
CCC Quality Mark
SABS South Africa
By aligning our engineering and manufacturing with international standards, we provide direct compatibility with multiple regional requirements:
• ISO 9001 Ex Motors: Certified quality management systems verify that every explosive-atmosphere motor (Ex d, Ex e, Ex nA, Ex t) meets strict manufacturing tolerances.
• NEMA Mechanical Specifications: Verified through comprehensive starting current, torque, and efficiency testing to meet IEEE and NEMA standards.
• IECEx / ATEX Directives: Certified for use in European and global hazardous locations, helping to simplify plant approvals.
• TestSafe Coal Mine Approval: Open access to Southern Hemisphere mining installations, verifying safety compliance for underground mining equipment.
Combining historical European design expertise with advanced manufacturing processes to produce high-performance industrial drives.
Acquired in 2011. ATB's century-long European engineering heritage supports our industrial electric motor division, incorporating brands like Laurence Scott (renowned for low-starting current generators) and Morley (rugged underground coal mining drives).
Integrated to expand our low and medium voltage motor portfolios. Their premium "W" and "10" series designs support energy-efficient motor development, offering compact foot-mount dimensions and reliable drive packages.
Founded in 1882. Schorch brings experience in high-output, severe-duty drive systems. This technology helps support complex projects in chemical plants, oil pipelines, municipal water systems, and test stations.
Jointly operated in China since 1999. OLI provides high-durability vibration motors (MVE) and Ex-rated vibration sensors for bulk material handling, screening, sifting, and chemical processing plants globally.
China's key explosion-proof motor research and manufacturing base. Integrated in 2015, they provide safe-area drives for offshore drilling platforms, coal mining conveyors, and high-voltage petrochemical pumps.
Partnered and integrated in 2018. Combining GE's experience in heavy-duty commercial and industrial electrical machines with our manufacturing capacity supports large-scale projects in mining, cement, water treatment, and materials processing.
Our localized manufacturing facilities utilize a robust supply network to ensure reliable access to raw materials and critical components, including high-grade cold-rolled non-oriented silicon steel sheets and rare-earth magnetic elements.
By keeping processing, lamination stamping, winding, VPI impregnation, and dyno-testing within localized hubs, we maintain strict quality control and competitive lead times.
We support multinational engineering companies and EPC contractors by tailoring motors to regional electrical and environmental requirements.
This includes accommodating various standard voltages (ranging from 220V up to 11kV), frequencies (50Hz or 60Hz), custom shaft dimensions, and specific flange mounts, while providing complete multi-lingual documentation packages.
Industrial energy efficiency regulations continue to tighten globally. We are expanding development of Ultra-Premium IE4 induction motors and Super-Premium IE5 Permanent Magnet Synchronous Motors (PMSM).
By reducing rotor losses, our permanent magnet technologies offer high efficiency even under partial load conditions, helping operators reduce carbon footprints and lower operating costs.
In-depth technical answers addressing actual application requirements, installation challenges, and compliance protocols.
ATEX is a mandatory European Union directive (2014/34/EU) that covers all equipment used in explosive atmospheres within the European Economic Area. It includes safety requirements and demands CE marking. IECEx is an international certification scheme based on IEC standards. While ATEX is legal only in Europe, IECEx is widely accepted internationally. Our explosion-proof motors (such as the YFB3, YBBP, and WEX3 series) are dual-certified under both ATEX and IECEx schemes, allowing for direct installation in hazardous zones globally.
VFDs control motor speed by outputting high-frequency voltage pulses, which can create transient voltage spikes on the motor windings. Standard insulation can degrade due to corona discharge caused by air pockets within the stator coils. The VPI process removes these air pockets, replacing them with a solid layer of resin. This reinforces the windings against mechanical vibration and high voltage spikes, making our VFD motors (like the YBBP and WEBP3 series) suitable for continuous variable-speed operation.
Up to 90% of an industrial motor's total lifecycle cost comes from the electricity it consumes, while the initial purchase price represents only a small fraction. Upgrading from standard IE3 to Premium IE4 or IE5 ratings reduces internal motor losses by 10% to 20%. In continuous-duty applications like water pumps, mine ventilation fans, and industrial compressors, the energy savings typically pay back the initial motor cost within the first 12 to 18 months of operation.
Copper has significantly higher electrical conductivity than aluminum, which reduces rotor resistance and helps minimize internal heat generation. For larger high-voltage motors, copper bar rotors improve overall efficiency and running temperatures. The welded copper bar design also provides higher mechanical durability during starting and braking cycles in heavy-load applications, such as large water pumps and conveyors.
Explore high-voltage, flameproof, and marine-grade motor configurations engineered for specific industrial applications.
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