High-voltage and low-voltage heavy duty synchronous/induction systems certified for hazardous zones.
Shaanxi Nanfang Motor Technology Co., Ltd. is the authorized distributor of Wolong. Founded in 1984, Wolong Electric Drive Group Co., Ltd. was successfully listed on the Shanghai Stock Exchange in 2002 (code SH600580). Leveraging over three decades of dynamic industrial expansion, Wolong operates 3 global manufacturing bases, 39 smart factories, and 4 state-of-the-art R&D centers globally.
Wolong stands at the absolute vanguard of global motor and drive control technology. Our integration of premium global brands has cemented our authority in extreme environments, specializing in tailor-made OEM solutions for anti-corrosive, explosion-proof, and variable frequency industrial systems.
WOLONG established in Shangyu, China, focusing on developing top-tier electric transmission lines.
Acquired 97.94% of the Austrian ATB Group, integrating Morley (130 years of underground mining excellence) and Laurence Scott (nuclear power & naval generators specialists).
Schorch (founded 1882) brought high-specification drive technologies for international pipeline, marine, and chemical projects into the Wolong family.
Strategic merger with CNE (Nanyang Explosion-proof Group), China's largest ex-proof motor base, followed by GE Industrial Motors division acquisition in 2018.
An in-depth analysis of materials science, environmental stressors, and standardizations dictating the heavy industry landscape.
Industrial components operating in offshore marine structures or petrochemical processing facilities are subjected to aggressive chloride concentrations. ISO 12944 defines corrosive environments from C1 to CX. Our motors are engineered to withstand C5-M (Marine) and CX (Extreme) offshore conditions, featuring custom fluorocarbon coatings and non-corrosive hardware.
Decarbonization policies require the convergence of anti-corrosion and high energy efficiency. By utilizing permanent magnet synchronous motor (PMSM) technologies, Wolong supports IE4 and IE5 efficiency limits, lowering thermal stresses internally, which dramatically prolongs the life of the insulation materials in hot, humid tropical climates.
Corrosion often compromises mechanical seals, creating risk in atmospheres with volatile gases. Wolong bridges this gap by combining double-chamber oil seals, positive-pressure housings, and flameproof envelopes (Ex d / Ex pz / Ex eb) with multi-layer surface protection coatings certified globally by ATEX, IECEx, and EAC.
Exploring the mechanical, electrical, and materials engineering built into every Wolong motor component.
Every motor is designed to mitigate the risks associated with galvanic corrosion, stress corrosion cracking, and winding insulation hydrolysis.
The rotor features the squirrel cage design, with cast aluminum rotors being widely utilized. These rotors are produced using either 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. The structural integrity and manufacturing process of cast aluminum rotors guarantee the motor rotor's reliability, and also endow the motor with outstanding torque properties. For larger capacity motors, copper bar rotors are employed, which benefit from dependable bar securing and end ring welding procedures. Additionally, the protective ring design of high-speed motors further ensures the reliable operation of the copper bar rotor.
The coil is crafted from polyester film and reinforced with glass cloth, utilizing either 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 emerges from the production line. 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.
By combining design assets of acquired pioneers, Laurence Scott's low starting current generator topologies and Schorch's heavy-duty pipeline drive architectures are fully integrated into our anti-corrosive products.
Engineered to excel in critical global environments under stringent international regulations.
Salt spray, offshore winds, and seawater contact accelerate metal dissolution. We provide YQ Series marine electric motors certified under DNV, ABS, and Lloyd’s Register. Featuring special labyrinth seals and custom anti-corrosive shaft coatings, these motors operate continuously on FPSOs, oil tankers, and deep-sea drilling platforms.
Hazardous locations require explosion-proof classifications such as Class I Div 1 / Zone 1. Our Nanyang CNE and GE-heritage explosion-proof asynchronous and synchronous motors (YBX5, WEBP3) deliver flameproof and dust-ignition-proof protection. Custom paint configurations resist sulfuric and hydrochloric vapors in processing plants.
Underground coal mines present combined challenges of coal dust explosion risks, acidic drainage water, and high relative humidity. Brands like Morley and Nanyang ATB provide YBSS flameproof mining motors and YFBKK dust-proof systems, designed for harsh coal conveyor and slurry pump duties.
Providing the regulatory passport required to deploy heavy electrical drives globally.
Direct EU directive compliance for equipment in explosive atmospheres.
Certified safety and operational efficiency compliance for North American markets.
Meets health, safety, and environmental protection standards within the EEA.
Mandatory product certification verifying safety and quality conformity.
South African Bureau of Standards approval for regional mining and industrial deployment.
Secured mining equipment compliance entry pathways for direct Australian integration.
Pioneering smart, sustainable, and highly resilient electric drivetrains for next-generation industrial infrastructures.
Integrating real-time vibration sensors and smart thermal monitoring units directly within the VPI stator and bearing housings. By feeding data to local control networks, we enable predictive maintenance that flags winding insulation degradation or seal breakdown before catastrophic failures occur.
Developing advanced eco-friendly nanocoatings that eliminate volatile organic compounds (VOCs) while matching the chemical resistance of epoxy finishes. This ensures compliance with global environmental mandates without compromising anti-corrosive properties.
Striving towards the IE6 efficiency barrier through permanent magnet designs that utilize minimal heavy rare-earth elements. These systems operate with low stator losses, extending the lifespan of bearings and lubricants in challenging marine environments.
Expert insights on corrosion mitigation, electrical design, and global site safety certifications.
Industrial-grade explosion-proof and marine duty induction systems built to meet demanding engineering specifications.
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