Engineered to drive heavy-duty hydraulic pumps, water pumps, and industrial motor systems globally.
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.
As an industry-leading explorer, Shaanxi Nanfang Motor channels these manufacturing capabilities to support hydraulic systems globally. Modern electro-hydraulic applications depend heavily on variable frequency and premium efficiency electric motors to actuate hydraulic pumps and control complex fluid dynamics.
Learn MoreAnalyzing the integration of heavy-duty electric motors with precision hydraulic pump systems for extreme operating environments.
Across the global heavy industrial supply chain, the demand for integrated hydraulic pump systems and corresponding electric motor drives has grown exponentially. Driven by strict energy regulations (such as European IE4/IE5 compliance) and the rapid automation of mining, marine, and chemical sectors, engineering buyers look for combined solutions where China-based factories supply not only the heavy hydraulic machinery but also the highly specialized electrical drive systems.
Hydraulic pumps and motors operate under massive fluid pressure, demanding high starting torque, dynamic variable frequency control, and extreme thermal resilience. Wolong and Shaanxi Nanfang Motor respond to this market need by exporting advanced AC induction and permanent magnet synchronous motors (PMSM). These motor drive packages act as the heart of hydraulic power units (HPUs), steering machinery, offshore winches, and massive mining tunnel boring operations. By merging robust hydraulic design principles with Wolong's century-old electrical motor brands, we offer unparalleled operational reliability.
| Application Scenario | Hydraulic Pump/Motor Type | Recommended Drive System | Key Compliance/Standards |
|---|---|---|---|
| Coal Mining & Drilling | Heavy-Duty Piston Pumps | Wolong Nanyang YBK3 Coal Mine Flameproof Series | TESTSAFE, ATEX, IECEx, ISO 9001 |
| Offshore Marine Vessels | Vane Pumps & Steerage Motors | YQ Series Low Voltage Marine Electric Motors | DNV GL, ABS, Lloyd’s Register Type Approval |
| Tunnel Boring Machines | High-Pressure Variable Pumps | YBU/YBUS/YBUD Tunnel Boring Machine Motors | IECEx, CE, GB standards |
| Chemical & Petrochemical HPUs | Gear Pumps & Circulation Pumps | WOLONG ATB YBBP (Water-Cooled) Ex Series | ATEX, IECEx, CU-TR (EAC) |
Wolong's world-class brand portfolio bringing over 130 years of European design and technology to global industrial buyers.
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, and became the actual controller of the ATB Group. Today, ATB motor group includes the prestigious brand Morley in the mining industry and Laurence Scott.
Both are excellent in motor manufacturing. Morley motor, with its nearly 130-year history, 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 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.
European technology and engineering base spanning multiple countries.
Heavy duty mining motors built to handle massive hydraulic loads.
Pioneering low starting current motors for nuclear and defense ships.
Pioneers in high-efficiency commercial and industrial AC motors.
Furthermore, Brook Crompton Motors joined the WOLONG group. Brook motor 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 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 motor 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, the OLI Brand owns the largest market around the globe. Dating back to 1999, WOLONG has jointly run 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 base, joined the WOLONG Group and succeeded in realizing 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) 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 abundant experience in electric motor manufacturing, GE provides huge support to 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!
Adhering to comprehensive standards allowing entry to North American, European, Australian, and global industrial markets.
Adhere to the comprehensive marketing strategy for the electric motor and the entire industry chain: WOLONG has secured the majority of product certifications, enabling it to penetrate the international market.
Exposing the internal structural components designed for high-stress continuous duties.
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.
Where power electronics, intelligent diagnostics, and fluid mechanics meet to create next-generation energy saving drive solutions.
The future of hydraulic pump and motor systems lies in the transition toward complete electrification, active digitalization, and decentralization. In traditional setups, hydraulic pumps ran at constant speeds, regulated by energy-wasting valves. The current roadmap focuses on integration with Variable Speed Drives (VSD) and highly responsive Permanent Magnet Synchronous Motors (PMSM), which dynamically modulate motor speed to match actual system pressure.
Furthermore, smart sensors (such as OLI vibration sensors) are being directly integrated into the motor frame and pump casing to feed live operational metrics (vibration signatures, temperature rises, and current anomalies) back to centralized monitoring platforms. This allows for predictive maintenance, preventing catastrophic failures in remote operations like oil rigs or offshore marine systems. The objective is to achieve the high power density of hydraulic systems with the clean efficiency and control accuracy of direct-drive electric systems.
Addressing the critical technical queries of international engineering buyers and system integrators.
A glimpse into Wolong’s global production hubs, assembly spaces, and testing centers.
Powering industries across 58+ countries globally with certified products.
High-voltage induction, explosion-proof, and permanent magnet synchronous motors for heavy equipment.
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