Explore our premium selection of heavy-duty, low-voltage, and explosion-proof synchronous/asynchronous motors manufactured under rigorous global quality standards.
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.
By coordinating global engineering powerhouses, our company handles bulk-material transport demands for multi-scale mines, heavy-industry processing zones, and maritime shipping logistics hubs.
Production Lines
Exporting Countries
International Patents
Mega Projects Completed
We provide custom OEM belt conveyor electric motors developed to survive continuous operations in hazardous, explosive, and ultra-harsh industrial environments.
Different kinds of Ex certificate for your industry and market, ensuring total compliance in Zone 1, Zone 2, Zone 21, and Zone 22 environment guidelines.
IE5/IE4/IE3 premium efficiency models available. We also design permanent magnet type drive configurations (WEPM series) for significant energy drop.
Rich product line covering low-voltage, medium-voltage, and high-voltage AC motors designed to meet the exact mechanical demands of global industries.
Combining legendary engineering legacies with state-of-the-art multi-physics simulation platforms to deliver extreme operational reliability.
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. Some products have reached the international leading level.
Wolong owns leading domestic brands such as Nanyang explosion, as well as internationally renowned century-old brands, such as Brook Crompton, Morley, Laurence Scott, Schorch, ATB, etc., and has a high brand reputation in the fields of oil and gas, petrochemicals, mining, etc.
As a well-known domestic motor manufacturer, Wolong has significant advantages in explosion-proof performance, reliability, durability, etc., and are widely used in dangerous environments such as petroleum, chemical industry, coal mines, etc., and have passed the explosion-proof certification of national authoritative agencies and international fields: ATEX, IECEx, CU-TR, etc.
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 the oversea 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, and transforming into a world-renowned and high-strength global motor manufacturer. The ATB motor group included the brand Morley in the mining industry and Laurence Scott, both of which are excellent in motor manufacturing.
ATB Group Integration
Morley Mining Systems
Laurence Scott Custom Drives
Morley motors, with nearly a 130-year history, have 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 is a manufacturer that can provide mine motors with high-specification, high-performance, and high-quality electrical equipment for the global market.
Laurence Scott, the pioneering company that supplied motors for British nuclear power plants, is currently renowned for manufacturing equipment with low starting currents and also equips British naval vessels with generators. Following its acquisition by WOLONG, the company has been honored with the Queen's Award for three consecutive years.
Venerable and profoundly skilled participant within the electric motor sector, boasting over a century of mastery in motor design and energy-efficient systems.
Since 1882, Schorch has set the standard for high-quality motors, catering to oil and gas, chemicals, power generation, and wastewater management.
Global market leaders in industrial vibration tech (MVE series) and Ex vibration sensors. Partnered with Wolong since 1999.
Brook Crompton Motors stands as a venerable and profoundly skilled participant within the electric motor sector, boasting over a century of mastery in the technology and design of electric motors. With its extensive background in technological innovation and design, Brook Crompton Motors leads the way in motor technology advancements and pioneers in the creation of energy-efficient motors. Driven by technology and innovation, Brook Crompton Motor has developed a complete range of low voltage, medium voltage and high voltage AC motors, including the premium Brook Crompton “W”, “10” series and motors suitable for operation in hazardous and harsh environments. Brook Crompton also provides user-friendly adjustable speed drive packages to provide users with efficient and reliable drive systems.
Schorch electric motors joined WOLONG in 2011. Since its establishment in 1882, Schorch has set the standard for high-quality motors. The company offers a diverse range of driving systems to customers globally, catering to both domestic and international projects. Schorch collaborates with its strongest partners to provide services across various industries, including oil and gas, chemicals, power generation, water supply and wastewater management, shipbuilding, steel and metal processing, test stations, tunnels, and so forth.
Regarding the vibration motor (MVE) and Ex vibration sensor, OLI Brand owns the largest market around the globe. Dating back to the year of 1999, WOLONG has jointly started the business with OLI vibration motor in China.
In 2015, WOLONG Electric Nanyang explosion-proof group Co., Ltd. (CNE), China's largest explosion-proof motor scientific research and production bases, joined the WOLONG Group and succeeded realize the strategic cooperation. With various types of explosion-proof motors, low voltage asynchronous motors, Ex-proof high voltage motors, and so forth, Nanyang Explosion Group’s motors are mainly used in oil, coal, chemical, metallurgy, electricity, military, nuclear power and other fields.
In 2018, General Electric (GE) industrial motor division joined the ranks of WOLONG. As the oldest manufacturer of commercial and industrial electrical equipment, GE caters to a multitude of heavy industries, encompassing oil and gas, petroleum and chemicals, power generation, mining and metal processing, paper, water treatment, cement, and materials processing. With the abundant experience in electric motor manufacturing, GE provides huge support with WOLONG.
WOLONG, originating in the city of Shangyu and burgeoning in China, is now rising as a global pioneer in the advanced cultivation and innovation of electric motor manufacturing!
How procurement and engineering leaders optimize conveyor drive procurement to minimize Total Cost of Ownership (TCO) and maximize uptime.
Underground operations demand absolute spark-prevention and extreme overload capacity. Using Morley-heritage motors, our flameproof series (like YBSS and YB3) feature low starting current technologies, reducing electrical stress on remote mine grids while delivering massive torque to clear blocked conveyor lines.
For cross-country conveyor belts stretching multiple kilometers, belt tension and motor speed synchronization are critical. Integration of WEPM Permanent Magnet motors controlled by Wolong variable frequency drives (VFD) prevents mechanical jerk-damage and cuts overall power draw by up to 18% compared to traditional asynchronous grids.
Port systems face dynamic saline humidity, dust clouds, and unpredictable shock loads during bulk cargo operations. Our DNV Type Approved marine grade and water-cooled motors (such as YBBP series) provide superior IP56/IP66 ingress protection and robust anti-corrosive painting profiles.
Explore the specialized materials and manufacturing processes that define the reliability of Wolong industrial electric motors.
Rotor: 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.
Stator: 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.
Frame: 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.
Low Noise Fan Hood System: 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 has secured major global product certifications, enabling streamlined import processes and cross-border installation compliance.
WOLONG is an ISO 9001 certified Ex motor manufacturer. ISO standard compliance has evolved into a critical gateway for businesses to surmount international trade barriers and enter global industrial channels. Our quality control system covers raw material verification, process testing, and comprehensive load-performance runs.
To confirm that WOLONG’s electric motors meet NEMA's mechanical performance specifications, we conduct thorough testing, which generally includes the efficiency test, insulation resistance testing, starting current and torque test, durability testing, vibration and noise testing, and so forth. For low-voltage motors, WOLONG successfully acquired the UL (Underwriters Laboratories) and CSA (Canadian Standards Association) certificates.
For low & high-voltage motors and explosion-proof motors, WOLONG has acquired the IECEx and ATEX certificates. This ensures safe deployment and simplified licensing procedures in volatile environments across European countries (EU) and other international jurisdictions.
Testsafe is the largest coal product certification body in the Southern Hemisphere. The acquisition of Testsafe certification has completely opened up the channel for Chinese coal mining motors to enter Australia, laying a solid foundation for WOLONG’s coal mining equipment to enter the Australian market and other international mining sectors, further enhancing the international influence of WOLONG's industrial integration.
Nemko / ATEX
CSA Certificate
CE Mark
ISO 9001 System
China Compulsory Cert (CCC)
SABS (South Africa)
TESTSAFE (Australia)
EU ATEX Directives
UL Standard Compliance
EAC / CU-TR (Eurasian Union)
NEMA Performance Approval
WOLONG’s motor and control technologies are utilized in core heavy-duty sectors worldwide.
Integrates directly with long-distance belt conveyors, stacker-reclaimers, bucket elevators, and industrial feeders. Optimized for extreme static starting torque and variable frequency operation.
Powering primary cooling loops, high-pressure pipeline gas compressors, and large-scale mine shaft exhaust fans. Built to perform reliably during continuous 24/7 operations.
Installed across coal liquefaction, refining facilities, and chemical production loops. Our explosion-proof designs prevent accidental gas/dust ignition under high thermal load limits.
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 so forth.
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.
Analyzing the paradigm shift in heavy-duty conveyor belt design: from classic induction motors to permanent magnet synchronous direct-drive grids.
Traditional conveyor setups rely on high-speed induction motors coupled with bulky gearboxes. The modern roadmap transitions to Permanent Magnet Direct Drive systems (WEPM series). Eliminating the gearbox minimizes mechanical wear, eliminates oil leakage hazards, and boosts powertrain efficiency by 5-10%.
Multi-motor conveyor paths require precise speed matching to prevent uneven belt wear or high-tension snapping. Wolong's combined VFD-motor engineering allows real-time load sharing, adjusting speed curves dynamically based on volumetric sensor data from the loading hopper.
By integrating OLI Brand Ex vibration sensors, operators monitor rotor dynamics, bearing wear profiles, and temperature shifts in real time. This shifts operations from reactive repairs to predictive maintenance cycles, protecting multi-million dollar bulk handling setups from unplanned down-times.
Comprehensive technical answers for procurement directors, mechanical engineers, and plant managers.
Select from our certified high-power motor range, developed specifically for large-scale mining, oil & gas, and heavy manufacturing infrastructures.
NANFANG
