Explore our industrial-grade electric motors custom engineered to NEMA, IEC, explosion-proof, and high-voltage operations under the world's most demanding environments.
As the premier authorized global partner and distributor of Wolong Electric Drive Group Co., Ltd, Shaanxi Nanfang Motor Technology Co., Ltd bridges cutting-edge power generation and electric motor technologies to heavy industrial operations globally. Founded in 1984 and listed in 2002 (code SH600580), Wolong has continuously expanded its global footprint, leveraging advanced engineering principles to manufacture robust motor solutions for safety-critical and highly explosive environments.
Through systematic asset acquisition and key technology integrations with industry pioneers—such as the 2018 partnership with General Electric (GE) Industrial Motors—Wolong now commands a network of 3 main manufacturing bases, 39 advanced manufacturing plants, and 3 global research and development centers, providing unmatched engineering depth and rapid international scaling capabilities.
A unified global industrial power engineering leader, created by integrating centuries of specialized electrical engineering heritage.
In 2018, General Electric (GE)'s industrial motor division joined forces with the Wolong Group, combining GE's century-old expertise in commercial and industrial design with Wolong's advanced lean manufacturing structures. This partnership allows Shaanxi Nanfang Motor Tech to provide high-voltage asynchronous motors, NEMA-grade platforms, and heavy-duty drivetrain systems that serve primary sectors such as oil and gas, material processing, mining, water utilities, and petrochemical operations globally.
Wolong acquired 97.94% of the European drive veteran Austrian ATB Group. This pivotal acquisition brought Morley Motors (specialists in underground heavy mining applications for over 130 years) and Laurence Scott (renowned for low-starting-current naval/nuclear drive applications) into the collaborative ecosystem, ensuring direct cross-pollination of European quality criteria and explosion-safe standards.
Integrating Brook Crompton's core engineering designs enabled the group to engineer premium energy-efficient motor configurations (Brook Crompton "W" and "10" lines). This enhances our low, medium, and high voltage variable speed drive offerings, providing industrial users with optimal torque regulation profiles under harsh thermal stresses.
Established in 1882 in Germany, Schorch joined the group to refine high-power structural designs and heavy industrial drive trains. Schorch motors are highly utilized across global maritime, sewage pipeline transit, chemical plants, and extreme tunnel environments where continuous load ratings are non-negotiable.
To support high-vibration systems and sorting machinery, the collaboration with OLI Brand vibration motor and explosion-proof vibration sensors provided a vital layer of structural monitoring. This partnership facilitates real-time predictive failure mitigation and system telemetry.
Wolong integrated China's largest national base for explosion-proof drives (CNE). This consolidation secured deep R&D capacity for positive pressure shells, flameproof high-voltage cages, and dust-ignition-proof motors, making the group a primary global source for hazardous area applications.
Large-scale engineering procurement managers demand more than off-the-shelf motors. At Shaanxi Nanfang Motor Tech, we address complex requirements through:
Integrated electric drivetrains designed for safety-critical heavy industrial operations.
Hazardous area installations demand certified explosive gas management. Our ATEX, IECEx, and NEXP explosion-proof motors utilize positive pressure type "p", flameproof type "d", and increased safety type "e" designs, ensuring absolute safety for refineries, offshore oil platforms, and transport pumps.
Leveraging Morley's 130-year engineering baseline, our motors are constructed with heavy-duty steel or ductile cast iron frames to resist extreme subterranean shocks, slurry ingress, and explosive coal-dust mixtures common in mining tunnels.
Using Laurence Scott's low-starting-current technology, we supply naval fleets and civilian nuclear power grids. These systems reduce initial grid impact while meeting high functional safety parameters and harsh seawater corrosion resistance ratings.
A closer look at the advanced mechanical engineering and thermal insulation dynamics built inside our motor assemblies.
Our rotors feature the rugged squirrel cage design, with cast aluminum rotors being widely utilized. These rotors are produced using centrifugal aluminum casting or die-casting techniques, where molten pure aluminum is poured into the slots of the rotor core, resulting in a single-piece construction that integrates the rotor bars and end rings.
For larger capacity and high-torque motors, copper bar rotors are employed, benefiting from dependable bar securing and advanced end ring welding procedures. Additionally, the protective ring design of high-speed motors ensures the reliable operation of the copper bar rotor under heavy dynamic loads.
The stator coil is crafted from polyester film and reinforced with glass cloth, utilizing low-powder mica tape with a high mica content or medium-powdered mica tape with an abundance of mica. Following the VPI (Vacuum Pressure Impregnation) process, a pristine white coil insulation structure emerges.
After the billet is extracted from the wire, it proceeds through the VPI process to transform into a finished unit. The winding and insulation are meticulously engineered to provide exceptional electrical performance, mechanical strength, resistance to moisture, and thermal stability.
The motor frame employs a fully digital platform for structural and fluid multi-physics field simulations. This simulation platform retains the original patent's structure and design, utilizing mature, high-strength cast iron (or steel as an alternative).
The frame boasts exceptional structural redundancy, outstanding heat dissipation properties, and ample inherent frequency isolation margins for the entire machine. It is engineered to endure significant mechanical shocks, maintain a superior vibration level, and ensure a lower temperature increase in the motor.
The low-noise fan cover system comprises a fan cover body, an air guide cylinder, a protective window, and a silencer plate. Its compact structure and lightweight design facilitate vibration reduction. The air inlet is situated on the side, which optimizes the avoidance of obstacles behind the motor, minimizing adverse effects on ventilation and reducing noise caused by energy loss during propagation path changes.
The system also incorporates sound-absorbing materials that absorb noise, thereby lowering the overall motor noise. Additionally, the fan cover is rated IP22, ensuring that hands cannot come into contact with the fan.
Our ongoing global design initiatives focus on energy transition, digital twin mapping, and autonomous drivetrain optimization.
Expanding the WEPM speed-regulated PMSM motor topologies. By utilizing rare-earth magnets, we achieve IE5 efficiency ratings, minimizing rotor copper losses and thermal footprints across varying speed spectra.
Developing new positive pressure shell dynamics (YZYKK and YBXKK lines) to operate at 10kV to 13.8kV, reducing cable cross-sections while maintaining safety parameters under high atmospheric humidity.
Integrating vibration sensors and micro-thermal telemetry into the motor's structure. Predictive data is processed at the edge to alert operations managers before mechanical degradation occurs.
Our motors undergo continuous testing to ensure compliant, border-free integration into multinational industrial grids.
Nemko / ATEX
CSA
CE
CC
SABS
TESTSAFE
Our comprehensive international testing protocols cover:
Expert engineering answers to common industrial motor procurement and application questions.
Explore our targeted selection of high-power motors engineered for extreme thermal limits, volatile gases, and heavy dust environments.
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