Shaanxi Nanfang Motor Technology Co., Ltd is the authorized distributor of Wolong. Wolong Electric Drive Group Co., Ltd was founded in 1984 and successfully listed in 2002 (code SH600580).
After more than 30 years of development, Wolong has established 3 major manufacturing bases, 39 advanced factories, and 3 state-of-the-art R&D centers worldwide. Focused on electric motor engineering and controls, Wolong is a premium global player in power, reliability, and custom configuration.
LEARN MOREHow Wolong integrated premier global industrial brands into a singular, powerhouse supply system.
Wolong acquired 97.94% of Austrian ATB Group, securing premier British and European brands. Morley brought nearly 130 years of underground coal mining engineering, while Laurence Scott introduced low starting current technology, heavily utilized by naval vessels and nuclear power plants.
Brook Crompton, with a century of pedigree, joined to offer premium "W" and "10" series low, medium, and high voltage motors. Schorch (founded 1882) brought class-leading drive systems serving oil & gas, shipbuilding, and wastewater management globally.
Strategic integration of China's largest explosion-proof motor research and manufacturing base. This established Nanyang CNE as a dominant force in mining, petroleum, petrochemical, metallurgy, and nuclear installations globally.
GE's industrial and commercial electrical division joined the Wolong ranks, merging American heavy-industry designs with Wolong's optimized supply chains to serve heavy processing, mining, and metal fabrication worldwide.
Configuring performance, safety, and efficiency to match demanding environments.
Full explosion-proof compliance with various Ex certifications, enabling safe installations across high-risk industrial regions globally.
Drastically reduce energy footprints. We provide line-start induction and permanent magnet synchronous motors (PMSM) for top-tier operational cost-saving.
Covering low to high voltage, variable frequency drives, non-sparking machines, and specialized TBM motors optimized for extreme duty cycles.
Decarbonization, digitization, and the migration to Ultra-Premium Efficiency systems.
By eliminating rotor line losses through advanced synchronous permanent magnet (PMSM) technologies, Wolong WEPM and WE3 series achieve class-leading operating efficiencies. Our next goal focuses on hybrid synchronous reluctance technologies (SynRM) to achieve IE5+ standards without relying heavily on rare-earth minerals.
Integrating high-performance Variable Frequency Drives (VFD) optimizes flow control in pump and fan systems. The variable frequency speed regulation systems (like the BPY-S30 and YBBPX series) dynamically adjust output based on torque demands, saving up to 40% in energy compared to line-start designs.
Partnering with OLI brand's specialized vibration sensors, Wolong is building digital twin diagnostics directly into motor frame structures. Real-time bearing temperature, housing vibration metrics, and winding degradation tracking are sent directly to plant SCADA systems to avoid unplanned shutdowns.
A deep dive into the high-spec design philosophy behind Wolong electric motors.
The rotor features a highly optimized squirrel cage design. Cast aluminum rotors are produced using centrifugal aluminum casting or die-casting techniques, integrating the rotor bars and end rings into a single-piece construction. This ensures high structural integrity and excellent startup torque properties.
For high-capacity motors, copper bar rotors are utilized, featuring precision brazed or welded joints. High-speed motor configurations include custom retention rings to prevent bar deflection and ensure operational reliability.
Stator coils are wrapped with high-quality polyester film, reinforced glass cloth, and medium-to-low powder mica tape. Through our automated Vacuum Pressure Impregnation (VPI) process, a void-free, structurally rigid insulation system is formed.
This thermal and electrical system ensures maximum moisture resistance, prevents mechanical movement during startup torque peaks, and enhances thermal conduction, extending winding lifespan.
Using digitized structures and fluid multi-physics simulation software, our motor frames are designed with high thermal dissipation margins and optimal natural frequency separation to prevent resonance.
Constructed from high-grade cast iron (or structural steel as an alternative), our frames endure substantial mechanical shock, keep vibration levels low, and maintain an even temperature distribution.
The low-noise fan cover system includes an aerodynamically optimized fan cover, air guide cylinders, protective window layouts, and silencer plates.
An offset side-inlet design minimizes the impact of obstacles behind the motor housing, lowering air turbulences and reducing noise. Inside, high-temp sound-absorbing materials lower overall acoustic emissions, while an IP22 design safeguards against direct contact.
Quick reference overview of low voltage and specialized motor lines.
| Series Name | Voltage Range | Efficiency Class | Standards Met | Primary Industrial Application |
|---|---|---|---|---|
| WE3 Series | Low Voltage (380V/400V/690V) | IE3 / IE4 | IEC 60034 / ISO 9001 | Fans, Water Pumps, Compressors, General Machinery |
| WEPM Series | Low Voltage (VFD Speed Regulated) | IE4 / IE5 Equivalent | IEC / CE Certification | High-efficiency variable load systems, HVAC, Pumps |
| WEBP3 Series | Low Voltage Explosion-Proof | IE3 / VFD compatible | ATEX, IECEx, EAC Ex | Petrochemical, chemical refineries, oil depots |
| YBX3 Series | Low Voltage Explosion-Proof | High Efficiency | ATEX, IECEx, CNE (Nanyang) | Coal mining, hazardous vapor environments, gas lines |
| NSHE Series | Low Voltage NEMA | NEMA Premium | NEMA MG1, UL, CSA | North American manufacturing plants, OEM pumps |
| YBU/YBUS/YBUD | Low/Medium Flameproof | Duty-Specific Torque | Mine Safety, TestSafe | Tunnel Boring Machines (TBM), Heavy Mining Excavation |
Designed for stability, efficiency, and safety across challenging industrial applications.
Flameproof motors (WEBP3, YBX3) prevent volatile vapors from contacting internal arcs. Built for offshore platforms and downstream refining complexes.
Morley-designed flameproof traction and mining motors handle abrasive dust and moisture in underground coal operations globally.
YBRB series flameproof water pump motors drive high-head pumps, sewage impellers, and municipal water supply networks.
YBU/YBUS/YBUD tunnel boring machine motors deliver high overload torque under varying geotech conditions.
Wolong operates 39 state-of-the-art factories globally, serving as a hub for advanced electrical manufacturing. By pairing manufacturing technologies with optimized domestic raw material sourcing, Wolong provides cost, lead-time, and customization advantages.
Adhering to a comprehensive certification strategy across global industries.
All facilities operate under ISO 9001 quality guidelines. To confirm mechanical performance specs in North America, our low-voltage motors carry UL and CSA certifications, verifying efficiency, insulation resistance, and torque profiles.
For hazardous operations, our explosion-proof motors hold IECEx and ATEX certifications. Furthermore, acquiring TestSafe certification helps streamline the export of mining motors to Australia and Oceania markets.
Nemko / ATEX
CSA
CE
CCC
SABS
TESTSAFE
Key considerations for engineering directors, procurement professionals, and EPC contractors.
Energy consumption represents over 90% of a motor's lifetime cost. Upgrading to WEPM series PMSM motors can reduce energy usage, offsetting initial acquisition costs within 12–18 months of continuous use.
Assess exposure to corrosive chemicals, washdown requirements, and altitude. Class-H insulation and customized paint protection prevent winding degradation in humid or high-salt marine applications.
With global warehouses and engineering facilities, Shaanxi Nanfang Motor and Wolong streamline international customs clearance and provide installation guidance on site.
Answers to common engineering and procurement inquiries.
Powering critical processes around the world.
Wolong operates 39 production plants and 4 R&D facilities located in China, Vietnam, the UK, Germany, Austria, Italy, Serbia, Mexico, and India.
From standard ventilation systems to heavy nuclear installations, our motors drive critical equipment including pumps, fans, gas compressors, and tunnel boring machines.
NANFANG
