Explore our line of high-efficiency explosion-proof, permanent magnet, and asynchronous low/high-voltage motors engineered for critical global operations.
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 3 manufacturing bases, 39 factories, and 3 R&D centers worldwide now. Wolong has always focused on the manufacture of motors and control systems, committed to a global brand strategy, making Wolong a leader in R&D, technology, process, manufacturing and sales in the global market.
Analysing macro demands, mechanical evolution, and systemic efficiency requirements in the OEM motor space.
In the contemporary industrial ecosystem, the market for OEM electric motors for sale is transitioning from commodity acquisition to system-integrated partnerships. Global companies and heavy-duty manufacturing factories require not just standard hardware, but high-torque density, application-specific thermal tolerance, and native integration capability with Variable Frequency Drives (VFDs).
Environmental governance, coupled with soaring energy prices, has pushed manufacturing factories to phase out older IE2/IE3 asynchronous platforms. Modern systems utilize advanced permanent magnet synchronous motors (PMSM) or ultra-high efficiency asynchronous designs (YE4 series) to guarantee minimal power losses. These systems decrease the Total Cost of Ownership (TCO) because energy consumption represents over 90% of a motor's lifetime costs.
Purchasing modern motors requires close attention to drive integration. Variable speed controls demand complex insulation mitigation (such as insulated bearings and reinforced stator winding arrays) to suppress damage caused by high dV/dt voltage spikes. OEMs now prioritize drive-motor packages that operate natively with automated SCADA systems for real-time thermal, vibration, and energy monitoring.
Explosion protection is paramount in chemical, oil, gas, and coal mining environments. Global buyers demand motors compliant with ATEX, IECEx, and EAC standards. This ensures that in the event of an internal short circuit or gas infiltration, the motor frame prevents any thermal transfer or flame propagation to the outer hazardous environment.
Providing engineered answers to complex engineering challenges across dangerous, high-demand operational sites.
Different kinds of Ex certificates are acquired and continuously updated to match your exact industry safety criteria and regional compliance regulations.
IE5, IE4, and IE3 designs are fully available. We also customize high-density Permanent Magnet Synchronous Motors (PMSM) for low-speed high-torque applications.
Rich product line covering low, medium, and high-voltage AC motors designed to meet the extreme demands of hazardous areas and heavy machinery.
A powerhouse alliance of legendary industrial brands under Wolong Drive Group.
Wolong has established motor and drive control R&D centers in China, Europe, and Japan, and established a central research institute in Shanghai. It is committed to the research of leading technologies in the field of motor and control technology. Through continuous cross-border engineering development, some products have reached the international leading level.
Wolong owns leading domestic brands such as Nanyang Explosion-proof, as well as internationally renowned century-old brands including Brook Crompton, Morley, Laurence Scott, Schorch, ATB, etc. It has established a high brand reputation in the fields of oil and gas, petrochemicals, mining, and heavy industrial engineering.
As a globally recognized motor manufacturer, Wolong has significant advantages in explosion-proof safety, durability, and operational longevity under harsh environments. Our products are widely used in dangerous industries like petrochemicals and underground coal mining, and have cleared rigorous testing for ATEX, IECEx, CU-TR/EAC, and other certifications.
How Wolong brought together the world's most trusted motor brands to form a seamless global manufacturing platform.
Accumulated with abundant assets and brilliant experiences in manufacturing, WOLONG started to reach for higher attempts. To be the leading manufacturer of AC motors & drives worldwide, WOLONG strove to acquire overseas groups.
In 2011, WOLONG company acquired strong technical and technological supports. WOLONG's holdings group successfully acquired 97.94% of the Austrian ATB Group (ATB motor), one of the three major European motor manufacturers, becoming the actual controller of the ATB Group. ATB motor group included the brand Morley in the mining industry and Laurence Scott, both excellent in motor manufacturing.
Morley Motor: With its nearly 130-year history, Morley has been closely linked to underground coal mining. Currently, the Morley brand is highly esteemed in the global underground coal market and has become synonymous with quality, power, and reliability. It provides heavy-specification, high-performance, high-quality electrical equipment for global markets.
Laurence Scott: Known as the pioneering company that supplied motors for British nuclear power plants, Laurence Scott is renowned for manufacturing equipment with low starting currents and equipping British naval vessels with marine-grade generators. Following its acquisition by WOLONG, the company was honored with the Queen's Award for three consecutive years.
Brook Crompton Motors: Standing as a venerable and highly skilled participant in the electric motor sector, Brook Crompton boasts over a century of mastery in motor technology and design. Driven by technology and innovation, they developed a complete range of low, medium, and high-voltage AC motors, including the premium Brook Crompton "W" and "10" series suitable for operation in hazardous and harsh environments.
Schorch Electric Motor: Joining Wolong in 2011, Schorch has set the standard for high-quality motors since 1882. It offers driving systems to global projects across various industries including oil and gas, chemicals, power generation, water supply, wastewater management, shipbuilding, and steel processing.
OLI Vibration Motor: Regarding vibration motors (MVE) and explosion-proof vibration sensors, OLI Brand owns the largest market share globally. In 1999, Wolong started joint business operations with OLI vibration motors in China, consolidating their market leadership.
Nanyang Explosion-Proof Group (CNE): In 2015, China's largest explosion-proof motor scientific research and production base joined the Wolong Group. Their heavy-duty asynchronous and positive-pressure motors are core assets in petrochemicals, metallurgy, nuclear power, and military operations.
General Electric (GE) Industrial Motors Partnership: In 2018, GE's commercial and industrial motor division entered a strategic integration with Wolong. This partnership provides Wolong with deep technological resources, strengthening its ability to support heavy processing industries like cement, materials processing, and deepwater municipal water systems.
Exploring the mechanical, electrical, and structural materials that deliver high efficiency and safety.
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 stator 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.
Wolong motors comply with key regulatory frameworks globally, smoothing international export barriers.
Nemko/Atex
CSA
CE
CCC
SABS
TESTSAFE
WOLONG adheres to a comprehensive marketing strategy for the electric motor and the entire industry chain, securing major product certifications to enter key international markets:
Powering infrastructure and manufacturing plants across every continent.
As a globally esteemed manufacturer of motors and drive solutions, WOLONG boasts 39 manufacturing facilities and 4 research and development centers (R&D centers) across various countries including China, Vietnam, the United Kingdom, Germany, Austria, Italy, Serbia, Mexico, India, and others.
WOLONG's diverse range of motors finds application across a multitude of industrial sectors, serving equipment such as fans, water pumps, compressors, and engineering machinery. These motors are integral to various industries, including ventilation and refrigeration, construction, oil and gas, petrochemicals, coal chemistry, metallurgy, electric and nuclear power, maritime, and industrial automation, to name a few. WOLONG's mission is to deliver optimal solutions and services to our customers.
How Shaanxi Nanfang Motor and Wolong are preparing for the next wave of industrial automation and electrification.
To support global carbon reduction goals, our development efforts focus on three primary technological directions:
Future iterations of our heavy-duty high-voltage motors will come equipped with integrated diagnostic modules. These micro-sensors monitor winding temperature, bearing degradation, and magnetic field symmetry, transmitting data directly to cloud-based monitoring networks to predict maintenance needs before failure occurs.
While asynchronous motors remain common, PMSM technology is expanding due to its high power-to-weight ratio. We are refining our permanent magnet designs to perform reliably under high vibration and high-temperature conditions without risk of demagnetization.
As Variable Frequency Drives (VFDs) are increasingly used to save energy, motor insulation systems must withstand continuous voltage spikes. We are upgrading our VPI processes with new polymer resins and mica structures to extend insulation life under rapid switching frequencies.
Expert technical answers to common queries on selection, installation, and compliance for OEM electric motors.
Explore our high-voltage and flameproof ranges, certified to meet international industrial standards.
NANFANG
