Explore our flagship industrial drives certified for extreme environments, hazardous conditions, and high-efficiency operations.
The global industrial landscape is undergoing a massive transformation driven by the mandate for high-efficiency energy conservation, regulatory demands for decarbonization, and the rapid expansion of smart factories. The term "Elektronik Motor" (representing advanced electric motor drives and system controls) now stands at the very center of this modern industrial revolution. From deep coal mines and massive petrochemical refining complexes to high-voltage marine vessels and automated HVAC fan systems, the reliance on high-performance alternating current (AC) motors has never been more critical.
Globally, industrial electric motors account for over 45% of total electricity consumption. Therefore, upgrading to super-premium efficiency systems (such as IE4 and IE5 standards) directly shifts corporate profitability and minimizes environmental footprints. Modern power systems demand smart integration, robust insulation materials capable of handling transient overvoltages from Variable Frequency Drives (VFDs), and explosion-proof constructions suitable for Zone 1, Zone 2, Zone 21, and Zone 22 hazardous locations.
Download Full WhitepaperShaanxi Nanfang Motor Technology Co., Ltd. serves as the premier authorized distributor of the Wolong Electric Drive Group Co., Ltd. (established in 1984, listed on the Shanghai Stock Exchange, code SH600580). Over the span of four decades, Wolong has consolidated a colossal global network including 3 manufacturing bases, 39 state-of-the-art factories, and 3 global R&D centers. Through systematic brand acquisitions, Wolong has integrated the world's most reputable legacy motor brands under one unified umbrella—making us a global leader in technology, manufacturing scale, and application-specific engineering solutions.
We provide full ATEX, IECEx, EAC Ex (CU-TR), CSA, UL, and TestSafe certified motors. This guarantees that your operations in petrochemical plants, offshore rigs, and underground coal mines strictly comply with global safety directives.
By leveraging advanced permanent magnet designs and optimized stator wind patterns, our motors reduce energy loss by up to 30%, meeting strict energy directives globally and offering rapid return on investment.
Covering low, medium, and high voltage asynchronous and synchronous motors. Our systems drive critical compressors, high-flow water pumps, ventilation fans, heavy conveyors, and marine electric propulsion systems.
The Wolong Group has integrated world-class motor brands, incorporating centuries of mechanical engineering heritage and technical excellence.
Acquired in 2011, ATB is one of Europe's top three motor manufacturers. Known for high-end customized drives, ATB includes legendary mining brand Morley and British marine generator pioneer Laurence Scott.
With over a century of mastery in design, Brook Crompton has paved the way for energy-efficient low, medium, and high-voltage AC motors. Their premium "W" and "10" series are global standards in reliability.
Established in Germany in 1882, Schorch specializes in heavy-duty drive systems for oil & gas, chemicals, water treatment, and shipbuilding, offering tailored high-voltage engineering designs.
Highly renowned for low starting currents, Laurence Scott is the leading manufacturer that supplied motors to British nuclear power plants and naval defense vessels, winning the Queen's Award for three consecutive years.
Dating back to 1999, Wolong's partnership with OLI has dominated the global industrial vibration market, delivering durable MVE vibration motors and Ex vibration sensors worldwide.
Integrated into the Wolong global network in 2018, GE's commercial and industrial motor division brings extensive experience in heavy industry drive applications, material processing, and mining technologies.
Our engineering department utilizes multi-physics dynamic simulation to optimize structural robustness, thermal margins, and acoustics.
Our motor rotors feature a heavy-duty squirrel cage design. For standard applications, cast aluminum rotors are manufactured using centrifugal casting or advanced high-pressure die-casting. This creates a solid, single-piece structure integrating the rotor bars and end rings, delivering exceptional structural reliability and excellent start-up torque characteristics.
For high-capacity high-voltage motors, copper bar rotors are used, secured with advanced welding procedures. High-speed models are equipped with custom retention rings to withstand intense centrifugal forces during overspeed conditions, protecting the rotor core from deformation.
The electrical heart of the motor is its stator winding. Our stator coils are wrapped with high-quality polyester film reinforced with glass cloth and high-mica content tape. Following winding, the entire stator core undergoes our VPI (Vacuum Pressure Impregnation) process.
This process extracts air and moisture under vacuum before injecting solventless epoxy resin under high pressure. The cured stator block forms a solid, moisture-resistant, and chemically inert system, offering superior dielectric strength, mechanical protection, and high thermal conductivity.
Using digital simulation platforms, we analyze structural mechanics and fluid thermal fields simultaneously. The motor frame utilizes high-tensile cast iron or fabricated structural steel plates. With generous structural safety margins, the frame design features high natural frequency isolation margins to prevent resonance with auxiliary machinery.
This structural rigidity suppresses vibrations, maintains bearing alignment under heavy loads, and optimizes internal airflow to reduce hotspots, extending overall operating lifespans.
The cooling fan assembly utilizes an aerodynamic low-noise cover, an air guide cylinder, protection screens, and integrated silencer plates. The side-entry air inlet design optimizes airflow pathways around obstacles, minimizing turbulence and aerodynamic noise.
Combined with acoustic lining materials, the assembly significantly dampens fan blade noise. The entire assembly meets IP22 finger-safe standards, ensuring complete safety for maintenance personnel.
Our manufacturing lines are audited to comply with major international testing bodies, facilitating frictionless import and compliance approval.
Nemko / ATEX
CSA
CE
CCC
SABS
TESTSAFE
To eliminate international trade barriers and meet high-specification local engineering standards, Wolong maintains strict quality control measures:
Driving the future of industrial motion with permanent magnet synchronous motors, smart sensors, and advanced digital integration.
Modern plants are adopting predictive maintenance. By embedding high-precision Ex-proof vibration sensors directly onto the bearing housing, our motors transmit real-time acceleration data to local control platforms or edge systems. Software models analyze temperature spikes and vibration anomalies, identifying bearing fatigue and alignment errors before failures occur.
This digital-twin integration reduces unplanned downtime, extends system service life, and lowers lifecycle costs across demanding oil and gas, mineral processing, and automated water treatment industries.
We are expanding our product offerings beyond asynchronous designs. By utilizing high-coercivity NdFeB permanent magnets, our synchronous PMSM lines achieve IE5 efficiency, maintaining high torque density across wide speed ranges.
These compact, high-efficiency motors are designed for direct-drive applications like low-speed cooling tower fans and conveyor systems. Eliminating reduction gearboxes simplifies installation and boosts efficiency by an additional 5-10%.
Variable Frequency Drives (VFDs) generate steep-fronted transient voltage spikes. Standard insulation systems degrade under these voltage stresses due to partial discharges. Our Vacuum Pressure Impregnation (VPI) process eliminates air gaps within the stator slot, bonding the mica tape and windings into a solid, highly insulation-dense block that resists degradation and prevents winding short-circuits.
Flameproof (Ex d) motors are constructed with a heavy enclosure designed to contain an internal explosion without allowing flames to escape. Positive pressure (Ex p) motors, such as our TZYW and YZYKS series, maintain an overpressure of clean air or inert gas inside the housing, preventing external explosive gases from entering the enclosure.
Copper has significantly lower electrical resistivity than aluminum, reducing rotor I²R losses and improving motor efficiency. This is crucial for large high-voltage motors where cooling requirements and energy efficiency are key design considerations. Copper bar designs also withstand high start-up thermal stresses better.
TestSafe is the premier coal mining equipment certification standard for Australia. Acquiring TestSafe certification ensures our mining motors meet strict safety requirements for explosive underground environments, enabling rapid import clearance and installation in demanding operations.
High-voltage, variable frequency, and marine drives optimized for demanding applications.
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