China High Efficiency Motor Manufacturers & Factories

Pioneering global energy transformation through high-performance electric drive solutions, certified engineering, and world-class industrial scalability.

Premium High Efficiency Motors

Explore our elite range of industrial electric motors, designed to maximize operational uptime and cut down global carbon footprint.

CE Certification Wolong Nanyang WXF series motor

CE Certification Wolong Nanyang WXF series high temperature fire 3 phase induction motor squirrel cage AC motor Manufacturers, Company

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China WEPM Frequency Control Permanent Magnet Synchronous Motor

China WEPM Frequency Control Permanent Magnet Synchronous Motor Manufacturer, Manufacturers

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CE Certification NEXP series explosion-proof motor

CE Certification Wolong Nanyang brand NEXP series low voltage AC explosion-proof three-phase NEMA standard motor Factory, Exporter

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China WOLONG YBC Coal shearer cutting motor

China WOLONG Nanyang ATB brand YBC series Coal shearer cutting motor Factories, Company

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OEM WOLONG YBBPX High Voltage Explosion-Proof Motor

OEM WOLONG Nanyang ATB brand YBBPX High Voltage Explosion-Proof Variable Frequency Three-Phase Motor Suppliers, Factories

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CE Certification WOLONG YBXKK High-Voltage Motor

CE Certification WOLONG Nanyang ATB brand YBXKK High-Voltage High-Efficiency Explosion-Proof Electric Motor Manufacturers, Suppliers

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OEM WOLONG YBX4 low voltage motor

OEM WOLONG Nanyang YBX4 series low voltage super high efficiency explosion-proof AC asynchronous three-phase motor Manufacturer, Exporter

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High-Quality Wolong YBBP low voltage motor

High-Quality Wolong Nanyang YBBP series low voltage variable frequency explosion-proof three-phase asynchronous motor Manufacturers, Factory

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Leading Authoritative Industrial Drive Supplier

Shaanxi Nanfang Motor Technology Co., Ltd serves as the premier authorized distributor of Wolong (Wolong Electric Drive Group Co., Ltd). Founded in 1984 and listed on the Shanghai Stock Exchange in 2002 (code SH600580), Wolong has achieved massive global milestones. With a strategy centered on global brand excellence, Wolong owns 3 manufacturing bases, 39 state-of-the-art factories, and 3 dedicated R&D centers globally.

WOLONG continues to set the benchmark in R&D, technology engineering, manufacturing, and global sales. By integrating a network of historical drive system manufacturers under one umbrella, we address specialized engineering, thermal management, energy sustainability, and strict safety guidelines required by modern heavy industries.

100+
Production Lines
58+
Countries Reached
32+
Patents Granted
200+
Mega Projects

Global Commercial & Industrial Motor Landscape

The shift toward net-zero emissions has elevated the role of premium high-efficiency motors from an operational upgrade to a regulatory mandate.

Regulatory Compliance & IE Efficiency

Governments globally are enforcing minimum energy performance standards (MEPS). Our motors satisfy IE3, IE4, and IE5 standards, helping heavy industries cut electricity costs by up to 15% and comply with European Ecodesign and NEMA standards.

System Integration & Variable Frequency

Modern plants rely on Variable Frequency Drives (VFDs) to match load requirements. The Permanent Magnet Synchronous Motors (PMSM) engineered by Wolong offer excellent control across variable speed scenarios, ensuring stable torque even at low speeds.

Total Cost of Ownership (TCO) Reduction

Over 95% of a motor's lifecycle cost is the electricity it consumes. Upgrading to high-efficiency motors from Chinese factories minimizes operational downtime and delivers a swift return on investment (ROI) within 12 to 18 months.

"China's manufacturing ecosystem enables the production of high-efficiency motors at a scale that balances premium quality with cost efficiency. Shaanxi Nanfang Motor provides global enterprises with direct access to these cost-effective, high-performing drive systems."

Engineered Solutions & Technical Advantages

Why global industrial leaders choose Wolong's electric motor solutions for their most challenging and hazardous operations.

ATEX/IECEx/EAC icon

ATEX / IECEx / EAC Certified

A comprehensive range of explosion-proof certificates is available, guaranteeing safe operation in Zone 1, Zone 2, Zone 21, and Zone 22 hazardous areas globally.

High efficient icon

High-Efficient & Energy Saving

We offer IE5 Ultra-Premium, IE4 Super-Premium, and IE3 Premium efficiency classes, utilizing permanent magnet technology to reduce rotor losses and operating temperatures.

Product Lines icon

Diversified Product Lines

Our extensive portfolio ranges from fractional horsepower fractional motors to multi-megawatt high-voltage synchronous machines, suitable for demanding industrial applications.

A Century of Engineering Excellence

Through strategic global acquisitions, Wolong has integrated prestigious European and American legacy motor manufacturers under a unified quality framework.

Austrian ATB Group Motor

ATB Group

Acquired in 2011. One of Europe's top three motor manufacturers. Represents supreme engineering heritage, including mining specialist Morley and Laurence Scott.

Morley Laurence Scott Motor

Laurence Scott

Nearly 130 years of history. Laurence Scott is highly regarded for low starting currents, supplying equipment for naval vessels and nuclear power plants.

Brook Crompton Motors

Brook Crompton

An industry veteran with over a century of history. Brook Crompton is a pioneer in energy-efficient motors, offering the premium "W" and "10" series designs.

Schorch electric motor

Schorch

Established in Germany in 1882. A premier standard for high-voltage drive systems in oil & gas, chemicals, water treatment, and shipbuilding.

OLI Vibration Motor

OLI Brand

A world leader in vibration motors. In 1999, Wolong established a joint venture to build a comprehensive global production base for industrial vibrators.

CNE Nanyang explosion-proof group

Nanyang CNE

Joined Wolong in 2015. China's largest explosion-proof motor research and manufacturing base, key supplier for petrochemical, metallurgy, and nuclear power sectors.

General Electric GE Motor

GE Division

Joined Wolong in 2018. As a legacy manufacturer of commercial and industrial machinery, GE supports heavy industries worldwide, including paper, cement, and water treatment.

Wolong Electric Global

WOLONG

Originating in Shangyu and growing rapidly in China, Wolong has become a global leader in advanced electric motor manufacturing and drive system innovation.

Inner Engineering & Component Design

An analysis of our motor internals, showing the design details that ensure longevity and efficiency under continuous duty cycles.

High efficiency motor rotor design

Advanced Rotor Systems

Our rotors feature a robust squirrel cage design, utilizing cast aluminum rotors produced via centrifugal casting or high-pressure die-casting. This integrates the rotor bars and end rings into a single-piece construction, ensuring structural integrity and excellent starting torque.

For high-capacity high-voltage motors, copper bar rotors are used. Reliable securing mechanisms and end ring welding procedures prevent bar migration. An integrated protective ring design for high-speed machines ensures safe operation under high centrifugal stresses.

VPI stator winding process

VPI Process & High-Insulation Stators

The stator coil is built using high-grade polyester film reinforced with glass cloth and low- or medium-powder mica tape with high mica content. This configuration offers excellent electrical resistance and high thermal limits.

Following assembly, the wound stator goes through a Vacuum Pressure Impregnation (VPI) process. The VPI treatment fills air gaps with resin, creating a solid insulation structure. This provides exceptional moisture resistance, high dielectric strength, and reliable thermal dissipation.

Heavy duty motor frame structure

Multi-Physics Simulated Frames

The motor housing is developed using digital platforms for structural and fluid multi-physics simulation. This dynamic modeling ensures high structural redundancy and efficient airflow channels.

Constructed from high-strength cast iron or fabricated steel plates, the frame provides robust protection against mechanical shocks. The design features optimal resonance isolation margins, resulting in low vibration levels and low temperature rise under continuous load.

Low Noise Fan Hood System

Low-Noise Aerodynamic Fan Hood System

Our low-noise cooling fan system includes an aerodynamic fan cover body, an air guide cylinder, a protective window, and acoustic silencer plates. The compact design reduces overall vibration and weight.

The side-inlet configuration avoids air path obstacles, minimizing turbulence and aerodynamic noise. Integrated sound-absorbing materials reduce acoustic emissions. The system carries an IP22 rating, preventing accidental contact with rotating parts.

Factory CNC Machining Center
Stator Winding Assembly
VPI Treatment Vessel
Final Motor Testing Bay

International Quality Certifications

WOLONG has secured major global product certifications, enabling seamless integration into international markets and heavy-duty projects.

Nemko ATEX Certification
Nemko / ATEX
CSA Certificate
CSA Standard
CE Mark
CE Declaration
CCC Certificate
CCC (China)
SABS Standard
SABS (South Africa)
TESTSAFE Mining certification
TESTSAFE Ex

WOLONG implements a comprehensive marketing strategy covering the entire industry chain. To support global projects, we adhere strictly to international standards:

  • ISO 9001 Standard: Our manufacturing facilities utilize ISO 9001 certified quality management systems, ensuring reliability and traceability from raw materials to final assembly.
  • NEMA Standard: To verify compliance with NEMA mechanical performance specifications, we perform testing including starting torque, efficiency, insulation resistance, and vibration limits. Low-voltage models carry UL and CSA certifications.
  • IECEx and ATEX: For hazardous locations, our high- and low-voltage explosion-proof motors are certified to ATEX and IECEx standards, allowing safe operation across the EU and international industrial complexes.
  • TESTSAFE: Certification by Testsafe, a major coal mine equipment certifier in the Southern Hemisphere, enables Wolong's explosion-proof mining motors to enter Australia and other global mining markets.

Industrial Applications & Sourcing Considerations

Connecting high-efficiency motor systems with demanding global applications in ventilation, extraction, and fluid movement.

Versatile Industrial Application Scenarios

Wolong's drive systems are engineered for diverse industrial sectors. Our motors operate in ventilation, water pumping, gas compression, and material handling systems worldwide. Key sectors include:

  • Oil, Gas & Petrochemical: Driving high-power compressors, pipelines, and pumps in volatile vapor environments requiring ATEX explosion-proof certification.
  • Coal Mining & Extraction: Under-ground coal shearers, conveyors, and ventilation fans utilizing Morley flameproof designs.
  • Water & Wastewater Management: Operating continuous-duty municipal pumps, water treatment aerators, and processing systems.
  • Maritime & Heavy Metallurgy: Low starting current marine thrusters and high-capacity steel rolling mill drives.

Global B2B Procurement Strategy

When sourcing industrial motors from China, engineering buyers should focus on technical specifications rather than unit price alone:

  • Torque & Load Matching: Identify breakdown torque, starting torque, and variable load curves, particularly when paired with VFD controllers.
  • Insulation & Thermal Margin: Select class H insulation and Class F temperature rise limits to prolong motor life under high ambient temperatures.
  • Enclosure & Cooling (IP Rating): Specify IP55 or IP66 enclosures depending on dust and moisture exposure.
  • Compliance Standards: Ensure certification alignments match local safety requirements (ATEX, NEMA, CSA, or CE).

Frequently Asked Questions

Technical answers to key inquiries regarding specifications, compliance, and ordering from high-efficiency motor manufacturers in China.

What is the difference between IE3, IE4, and IE5 efficiency classes?
IEC 60034-30-1 defines energy efficiency classes for single-speed, three-phase induction motors. IE3 represents "Premium Efficiency," IE4 represents "Super Premium Efficiency," and IE5 represents "Ultra Premium Efficiency." With each step up, energy losses are reduced by approximately 15-20%. IE5 motors frequently utilize Permanent Magnet Synchronous (PMSM) technologies to eliminate rotor winding losses.
Why is the Vacuum Pressure Impregnation (VPI) process crucial for high-voltage motors?
VPI forces insulation resin deep into the motor's stator windings under vacuum and high pressure. This eliminates air voids, which can cause corona discharge in high-voltage operations. It also enhances mechanical bond strength, improves thermal conductivity, and protects the windings from moisture and environmental contaminants.
How do Wolong explosion-proof motors comply with EU hazardous area regulations?
Wolong motors carry ATEX and IECEx certifications issued by European notified bodies. These designs utilize flameproof enclosures (Ex d or Ex de) and increased safety measures (Ex e) to prevent internal sparks or thermal build-up from igniting volatile external gases or dust.
What is the typical lead time for custom high-voltage industrial motors?
Lead times depend on the frame size and engineering complexity. Standard low-voltage NEMA or IEC motors are typically dispatched within 4 to 6 weeks. Customized high-voltage motors requiring structural modeling and specialized testing may require 12 to 18 weeks. Shaanxi Nanfang Motor coordinates tracking and quality checks throughout the production cycle.

Heavy Duty & Specialized Induction Motors

Engineered for extreme operating environments, petrochemical plants, and underground mining operations.

OEM WOLONG YBSS flameproof motor

OEM WOLONG Nanyang ATB brand YBSS series flameproof three-phase asynchronous motor for conveyor Suppliers, Factories

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OEM Wolong YVF variable frequency high voltage motor

OEM Wolong Nanyang ATB brand YVF series variable frequency high voltage three-phase induction AC motor Factory, Company

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CE Certification WOLONG TBVF permanent magnet motor

CE Certification WOLONG Nanyang ATB brand TBVF series China three-phase permanent magnet Ex synchronous vsd mine motor Manufacturer, Exporter

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Wolong YKK high voltage AC induction motor

High-Quality Wolong ATB brand YKK series high voltage three-phase AC induction motor Manufacturer, Manufacturers

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OEM Wolong Y YX series high voltage motor

OEM Wolong Nanyang ATB brand Y YX series high voltage three-phase AC motor Supplier, Companies

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CE Certification WOLONG YBRB water pump motor

CE Certification WOLONG Nanyang ATB brand YBRB series flameproof three-phase asynchronous water pump motor Factory, Factories

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CE Certification WOLONG TZYW excitation motor

CE Certification WOLONG Nanyang ATB brand TZYW series positive pressure housing type brushless excitation synchronous motor Manufacturers, Exporter

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China WOLONG YZYKK high voltage asynchronous motor

China WOLONG Nanyang ATB brand YZYKK series high voltage positive pressure shell type three-phase asynchronous motor Manufacturer, Factory

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