CE Certification Crompton Motor Exporter & Company

Industrial Grade High-Efficiency Explosion-Proof Solutions & Global Procurement Authority

Premium Industrial Electric Motors

Highly certified low-voltage and high-voltage three-phase asynchronous motors for severe applications.

Dust Ex Wolong Nanyang YFB3 series low voltage high efficiency dust explosion-proof AC motor

Wolong Nanyang YFB3 series low voltage high efficiency dust explosion-proof AC motor

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High Temp CE Certification Wolong Nanyang WXF series high temperature induction motor

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

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High Voltage OEM Wolong Nanyang ATB brand Y YX series high voltage AC motor

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

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YE5/IE5 China YE5 Series Low-Voltage And High-Efficiency Explosion-Proof Motor

China YE5 Series Low-Voltage And High-Efficiency Explosion-Proof Three-Phase Asynchronous Motor

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YZYKK China WOLONG Nanyang ATB brand YZYKK series high voltage motor

China WOLONG Nanyang ATB brand YZYKK series high voltage positive pressure shell type motor

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VFD Ex High-Quality Wolong YBBP series low voltage variable frequency motor

High-Quality Wolong Nanyang YBBP series low voltage variable frequency explosion-proof motor

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WE3 Series China Wolong Nanyang WE3 series motor

China Wolong Nanyang WE3 series low voltage and high efficiency three-phase AC motor

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Schorch VFD China Wolong Nanyang Schorch brand BPY-S30 motor

China Wolong Nanyang Schorch brand BPY-S30 series variable frequency speed regulation motor

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Corporate Authority: Shaanxi Nanfang Motor & Wolong Alliance

Shaanxi Nanfang Motor Technology Co., Ltd. is the premier authorized global distributor for Wolong Electric Drive Group Co., Ltd. Founded in 1984 and listed on the Shanghai Stock Exchange in 2002 (code SH600580), Wolong has grown to become the undisputed global power in motor design, development, and control solutions. Currently, Wolong operates 3 manufacturing bases, 39 advanced factories, and 3 global R&D centers spanning multiple continents.

Through strategic mergers and acquisitions, the Wolong brand portfolio integrates some of the world's most distinguished motor companies. These include Brook Crompton, Morley, Laurence Scott, Schorch, ATB, and OLI. This consolidation integrates over a century of British engineering, Austrian precision, and German technology with advanced industrial manufacturing systems. In 2018, General Electric (GE) Industrial Motors joined the alliance, further bolstering the group's global footprint in high-reliability, heavy-duty industrial electric motors.

100+
Production Lines
58+
Export Countries
32+
International Patents
200+
Mega Projects Completed

Customized Industrial Solutions

Addressing hazardous locations, energy-efficiency demands, and heavy industry challenges globally.

ATEX/IECEx/CE Compliance

Complete regulatory approval mapping for European and international explosive gas and dust hazards, including Zone 1, Zone 2, Zone 21, and Zone 22 applications.

Ultra-Efficiency (IE3, IE4, IE5)

Optimized three-phase induction and Permanent Magnet (PM) synchronous motor architectures designed to lower energy consumption and operational footprint.

Diversified Product Lines

Broad catalog covering low, medium, and high voltage units, custom duty cycles (S1 to S9), variable frequency controls, and heavy industrial gear attachments.

R&D, Technical Heritage & Brand Synergy

Wolong's engineering prowess is anchored in global research hubs located across China, Europe, and Japan, with a leading-edge Central Research Institute based in Shanghai. Our research focus is dedicated to the integration of motor technologies with digital control systems.

R&D Advantage

Advanced Research & Development

Global R&D centers leverage multi-physics simulations to optimize motor performance and electromagnetic designs, keeping our systems at the forefront of the industry.

Brand Advantage

Global Brand Synergy

Integrating the technical heritage of Brook Crompton, Morley (mining), Laurence Scott, Schorch (refining & gas), ATB, and Nanyang Explosion Group (CNE).

Explosion Proof Advantage

Explosion-Proof Technology

Industry-certified flameproof (Ex d), increased safety (Ex e), non-sparking (Ex nA), and positive pressure (Ex p) designs certified for safety in global hazardous environments.

Century-Old Brands Integrated under Wolong Drive

Brook Crompton Motors: A pioneer in energy-efficient designs, Brook Crompton has over a century of experience developing low, medium, and high-voltage AC motors. This includes the high-specification Brook Crompton "W" and "10" series, engineered to perform reliably in corrosive and hazardous environments.

ATB Group: Acquired by Wolong in 2011, this leading European motor group incorporates brands such as Laurence Scott (low starting current, nuclear, and naval defense grade designs) and Morley (nearly 130 years of history specializing in flameproof underground coal mining motors).

Schorch Motors: Established in 1882 in Germany, Schorch is a premium supplier of high-output drive solutions for oil and gas, petrochemicals, power generation, and steel processing industries.

Nanyang Explosion Group (CNE): China's largest scientific research and production base for explosion-proof motors. The Nanyang brand is essential to national and international petroleum, coal mining, and nuclear power infrastructure projects.

Technical Anatomy of Crompton & Wolong Motors

Our motors are engineered to meet demanding industrial environments. The components are optimized using multi-physics simulations, high-grade insulation systems, and precision dynamic balancing.

1. Precision Stator Windings & VPI

The stator windings use high-grade copper wire wrapped with polyester film and reinforced glass-cloth mica tape. Stator cores undergo Vacuum Pressure Impregnation (VPI) to eliminate voids, providing resistance to moisture, chemical exposure, thermal stress, and mechanical vibration.

Motor Stator VPI Winding Processing
Industrial Squirrel Cage Rotor Design

2. Squirrel-Cage Rotor Engineering

Rotors feature cast-aluminum or copper-bar squirrel cage structures. Small and medium frames utilize centrifugal die-cast aluminum for consistent starting torque. Large-frame, high-output motors use copper bars welded to end rings to minimize loss and optimize efficiency during heavy-duty start cycles.

3. High-Strength Cast Iron Frame

Constructed from heavy gray cast iron or fabricated structural steel, our motor frames are engineered to absorb vibration and withstand mechanical impacts. Multi-physics heat-dissipation simulations are used to design optimized cooling ribs, keeping motor temperature rise within Class B limits even when running under Class F thermal load.

High Strength Cast Iron Motor Frame
Low Noise Fan Hood System

4. Low-Noise Fan Hood System

Comprising an aerodynamic fan cover, air guide cylinder, protection windows, and integrated silencer plates. The side-entry air intake minimizes turbulence and air resistance, reducing acoustic signatures while maintaining high cooling airflow. Rated to IP22/IP55 to prevent accidental contact with moving parts.

Factory 4.0: Supply Chain Resilience & Manufacturing Prowess

Wolong's production infrastructure leverages Smart Factory 4.0 systems, which integrate robotic winding, automated VPI chambers, and CNC machining centers. This automation ensures component consistency and dimensional stability across production batches.

Smart Assembly Line
Precision Testing Lab
VPI Chamber Processing
Final Stage QA

By sourcing raw materials—such as high-grade silicon steel laminations and ultra-pure copper—through long-term partnerships, Shaanxi Nanfang Motor stabilizes production timelines and insulates clients from global material price fluctuations.

Global Compliance & International Certifications

Exporting industrial machinery requires strict compliance with international standards. Our electric motors are fully certified by global regulatory bodies, permitting seamless integration into international systems.

Nemko ATEX Certification

Nemko / ATEX

CSA Certification

CSA Safety

CE Marking Certificate

CE Mark

TESTSAFE Certification

TESTSAFE

  • ISO Standard: Manufactured under certified ISO 9001 quality management, ISO 14001 environmental safety, and ISO 45001 occupational health guidelines.
  • CE Mark: Full compliance with the EU Low Voltage Directive (2014/35/EU), EMC Directive (2014/30/EU), and Machinery Directive (2006/42/EC).
  • ATEX & IECEx: Certified for Zone 1 and Zone 2 hazardous gas atmospheres (Group IIA, IIB, IIC) and Zone 21 and Zone 22 combustible dust environments (Group IIIA, IIIB, IIIC).
  • NEMA Standard: Motors meet or exceed NEMA MG1 requirements for frame sizes, mounting dimensions, electrical characteristics, and efficiency levels (Premium Efficiency).
  • TESTSAFE & SABS: Certified for Australia and South Africa, providing approved explosion-proof protection for underground mining applications.

Technical Roadmap & Future Outlook

As industries aim for carbon neutrality and adopt digital monitoring, Wolong and Shaanxi Nanfang Motor are evolving their technology portfolios along two primary paths:

1. High-Efficiency Electrification

Transitioning motor catalogs to meet IE4 and IE5 efficiency standards. We are investing in Permanent Magnet Synchronous Motors (PMSM) and Synchronous Reluctance Motors (SynRM) to reduce energy loss by up to 30% compared to traditional induction motors.

2. Industrial IoT (IIoT) & Predictive Maintenance

Integrating vibration, temperature, and acoustic sensors directly into motor enclosures. Connected to our cloud analytics platforms, these smart sensors monitor health indicators in real-time, helping plant operators forecast maintenance needs and prevent unscheduled downtime.

Frequently Asked Questions

Technical guidance and compliance advice for industrial motor procurement.

How do Brook Crompton and Wolong brands coordinate technically?
Wolong Electric Drive Group acquired the Brook Crompton brand to combine British engineering design with Wolong's large-scale manufacturing facilities. This allows us to offer Brook Crompton specification motors produced efficiently at our global factories.
What is the practical difference between ATEX and IECEx certifications?
ATEX is a mandatory European Union directive required for any equipment operating in explosive atmospheres within the EU. IECEx is an international certification scheme intended to facilitate global trade. Many of our explosion-proof motor series carry dual ATEX and IECEx certification to simplify international compliance.
What benefits does Vacuum Pressure Impregnation (VPI) provide to winding systems?
VPI processes submerge the assembled stator core and windings in high-temperature solventless resin under vacuum and positive pressure. This process fills air gaps within the insulation, improving mechanical strength, heat transfer, and protection against humidity and chemical contaminants.
Can low-voltage motors be operated with Variable Frequency Drives (VFDs)?
Yes, our specialized variable-frequency motors (e.g., YBBP, BPY-S30) are engineered with insulated bearings and reinforced winding insulation (Class H) to resist the voltage spikes and high dv/dt levels associated with modern IGBT VFD drives.

Heavy Industry & Explosive Area Specialties

Flameproof, non-sparking, and process-critical heavy-duty drive systems.

Conveyor Ex High-Quality WOLONG Nanyang ATB brand YBS series conveyors induction motor

High-Quality WOLONG Nanyang ATB brand YBS series conveyors Flameproof 3 phase asynchronous induction motor

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Dust HV OEM WOLONG YFBKK Dust-proof HV Motor

OEM WOLONG YFBKK Dust-proof HV Motor Supplier, Exporters

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Non-Sparking OEM WOLONG Nanyang ATB brand YWKK YWKS HV motor

OEM WOLONG Nanyang ATB brand YWKK, YWKS High-voltage Non-sparking Three-phase Induction Motor

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CE Ex CE Certification YE3 Series Motor

CE Certification YE3 Series Low-Voltage And High-Efficiency Explosion-Proof Three-Phase Asynchronous Motor

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YB3 HV China WOLONG Nanyang ATB brand YB3 HV motor

China WOLONG Nanyang ATB brand YB3 series compact high voltage high-efficiency explosion proof motor

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YBSS Ex OEM WOLONG Nanyang ATB brand YBSS motor

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

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Composite Ex CE Certification Wolong Nanyang YBFBX4/YBFBX3 motor

CE Certification Wolong Nanyang YBFBX4/YBFBX3 series low voltage composite explosion-proof AC motor

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YBSD Ex High-Quality WOLONG Nanyang ATB brand YBSD motor

High-Quality WOLONG NanyangATB brand YBSD series flameproof AC 3 Phase Motors for convey

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