CE Certification IEC Motors: Global Manufacturing & Export Solutions

Providing industrial asynchronous and permanent magnet synchronous motors with high efficiency (IE3, IE4, IE5) and global explosion-proof compliance (ATEX, IECEx).

High-Performance Certified Industrial Motors

Select industrial three-phase low and high voltage AC motors from the global manufacturing base, completely certified for ATEX, IECEx, and CE requirements.

Global Industrial Drive Market Landscape

In modern industrial operations, motor efficiency is critical to achieving carbon neutrality and sustainable energy objectives. As industrial systems expand in complexity, the integration of premium efficiency classes, specifically IE3, IE4, and IE5 standards under the International Electrotechnical Commission (IEC), is no longer optional—it is a regulatory mandate across major global markets.

At the center of this transition are IEC-standard motors. Equipped with CE certification, these systems ensure seamless deployment across EU regions while adhering strictly to global energy directives. Navigating this marketplace requires strategic alignment with suppliers who offer not just products, but verified certification portfolios, comprehensive global support infrastructures, and technical expertise designed for hazardous, explosive, and high-demand heavy industrial environments.

Industrial Decarbonization IE5 Ultra-Efficiency VSD Integration

Key Parameters of IEC Compliance

Understanding the structural requirements of IEC and CE-certified motors ensures long-term operational success:

  • Frame Sizes & Dimensions: Uniformly defined under IEC 60072-1 standards to ensure complete physical swap compatibility.
  • Explosion-Proof Zoning: Tailored for Zones 1, 2 (Gas) and Zones 21, 22 (Dust) under IEC 60079 compliance codes.
  • Insulation Class F/H: Designed with thermal safety margins to prevent windings failure during heavy-duty operations.
  • VPI Treatment: Vacuum Pressure Impregnation protecting electrical components from humidity and industrial chemical agents.
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Production Factories
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Exporting Countries
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National Utility Patents
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Mega Project Implementations

About Shaanxi Nanfang Motor & The Wolong Group

Establishing global leadership in motor design and control systems through technology acquisitions and specialized industrial manufacturing excellence.

Shaanxi Nanfang Motor Technology Co., Ltd. is the authorized distributor of Wolong Electric Drive Group Co., Ltd. founded in 1984 and listed publicly in 2002 (code SH600580). Over decades of scientific development, Wolong has grown to establish 3 central manufacturing bases, 39 advanced manufacturing factories, and 3 global R&D centers. Focused deeply on motors and integrated drive control systems, Wolong executes a multi-brand strategy that positions the group at the forefront of global industrial engineering, delivering reliable, high-efficiency solutions to demanding engineering markets.

Strategic Acquisitions & Historical Synergy

Acquisition ATB Group Laurence Scott Motors Morley Mining Motor Schorch Motor Manufacturing

ATB Group, Morley & Laurence Scott (Acquired 2011)

In 2011, WOLONG Group acquired 97.94% of the Austrian ATB Group, a major player in European motor production. This acquisition brought renowned legacy brands under Wolong's technological umbrella, including:

  • Morley Motors: Boasting nearly 130 years of history, Morley is synonymous with flameproof mining motors engineered to withstand aggressive underground coal environments.
  • Laurence Scott: Historically recognized for powering British nuclear plants and naval vessels, Laurence Scott is famous for low-starting-current motor topologies and premium generators. Following the acquisition, the company secured the Queen's Award for Enterprise for three consecutive years.
Brook Crompton Motors Schorch Motors OLI Vibration Motors

Brook Crompton & Schorch Integration

Adding to its portfolio, Brook Crompton Motors brought over a century of experience in motor design and innovation, leading the development of highly efficient systems like the "W" and "10" series for harsh industrial areas.

Schorch Electric Motor, established in Germany in 1882, has set standards for drive systems in oil, gas, power generation, and water treatment. OLI Brand, a global leader in high-performance vibration motors and sensors, has partnered with Wolong in China since 1999 to serve specialized materials handling markets.

Nanyang Explosion Proof Motors General Electric Partnership

Nanyang Explosion Proof (CNE) & GE Industrial Partnership

In 2015, Nanyang Explosion Protection Group (CNE), China's largest scientific R&D base for explosion-proof motors, integrated into the Wolong Group, broadening its capability in oil, chemical, and nuclear power applications.

In 2018, General Electric (GE) Industrial Motors joined Wolong. As a legacy manufacturer of commercial and industrial equipment, GE provides extensive technological support for Wolong's oil and gas, petrochemical, and mining product lines, reinforcing the group's global competitive edge.

Advanced Technical Advantages & Industrial Solutions

Providing optimized drive solutions for hazardous environments and energy-saving setups worldwide.

ATEX / IECEx / EAC Ex Compliance

Our motors are certified to conform with stringent explosion-proof safety requirements, ensuring secure operation in volatile, gas-heavy, and coal dust environments globally.

High-Efficiency Systems

Available in IE3, IE4, and IE5 specifications. We offer permanent magnet synchronous motor technologies that reduce energy consumption and operational wear.

Diversified Product Lines

From low-voltage variable frequency drives to high-voltage positive pressure designs (YZYKS), we cover critical industrial requirements.

Industrial R&D base

Deep-Dive Mechanical Anatomy: IEC Motor Internals

Precision-engineered components built to withstand extreme stress and optimize electrical-to-mechanical energy transfer.

Precision Manufactured Rotor

Advanced Rotor Systems

Features squirrel cage designs utilizing cast aluminum rotors produced via centrifugal casting or high-pressure die-casting. This construction integrates the rotor bars and end rings into a single piece to ensure structural integrity and optimize torque characteristics. For high-capacity applications, copper bar rotors with robust end-ring welding and safety retention rings are employed to ensure reliable performance under high rotation speeds.

High Quality Stator Winding

VPI Insulated Stator Windings

Coils are crafted with polyester film reinforced with glass cloth and high-mica-content tapes. Post-assembly, the stator undergoes the VPI (Vacuum Pressure Impregnation) process to eliminate voids and moisture. This insulation system provides high mechanical strength, moisture resistance, and thermal stability under continuous operation.

Rugged Motor Frame

Digital Simulation Designed Frames

Developed using structural and fluid multi-physics simulation platforms, our frames are made of high-strength cast iron or structural steel. They feature high heat dissipation capacity, rigid structural redundancy, and natural frequency isolation margins to minimize vibrations and withstand physical shocks.

Optimized Fan Cover System

Low-Noise Aerodynamic Fan Hoods

Includes a compact fan cover, air guide cylinders, protective windows, and silencer plates. The side-entry air intake design avoids flow obstructions behind the motor, reducing energy losses and acoustic emissions. Rated to IP22, the system incorporates sound-absorbing materials to ensure quiet operations while protecting personnel from rotating components.

Global Industrial Manufacturing Operations

Manufacturing workshop 1 Manufacturing workshop 2 Manufacturing workshop 3 Testing area

Comprehensive Global Certification Matrix

Securing absolute entry into global markets through verification against ISO, NEMA, CE, and safety agency standards.

Nemko ATEX Certification

Nemko/ATEX

CSA Certification

CSA

CE Marking

CE

CCC Certification

CCC

SABS Certification

SABS

TESTSAFE Certification

TESTSAFE

WOLONG implements a comprehensive compliance strategy across the manufacturing chain to meet international trade requirements:

  • ISO 9001 Ex Standard: Establishes global quality management credentials, providing a foundation for international trade and industrial production operations.
  • NEMA Performance Standards: Meets NEMA mechanical specifications in North America. Motors undergo testing for efficiency, insulation resistance, starting current/torque, vibration, and noise. Certified by UL and CSA.
  • IECEx & ATEX Standards: Mandatory certifications for low-voltage, high-voltage, and explosion-proof motors deployed in hazardous locations across the European Union and global markets.
  • TESTSAFE Certification: Facilitates access to the Australian coal mining equipment market and other commonwealth industrial zones.
Ex Certificate 1 Ex Certificate 2 Ex Certificate 3 Ex Certificate 4 Ex Certificate 5

Localized Applications & Industrial Scenarios

Customizing motor drive configurations to meet specific requirements in oil and gas, petrochemicals, mining, power generation, and automation.

Petrochemical & Refining

In refining plants, explosive environments require ATEX/IECEx certified explosion-proof motors (such as the YBX4 and WEBP3 series). These systems power compressors, heavy pumps, and exhaust fans, preventing accidental ignition while maintaining continuous operation.

Underground Coal Mining

Mining operations face combustible coal dust and methane gas hazards. Specialized flameproof motors (like the YBK3 series and Morley designs) are built with heavy cast iron enclosures to contain internal explosions and support conveyors and ventilation machinery.

Marine & Outboard Propulsion

Operating in salt-spray and humid marine environments requires high corrosion protection. Wolong's 40kW electric outboard motors provide reliable propulsion and high torque efficiency for marine engineering vessels.

Future Technology Roadmap & Digital Integration

The industrial motor sector is evolving beyond basic mechanical engineering toward intelligent, connected drive systems. Wolong's technology roadmap focuses on three main pillars:

  • Permanent Magnet Synchronous Motors (PMSM): Advancing beyond standard induction designs, our permanent magnet technologies offer high torque density and efficiency across all speed ranges.
  • Digital Twins & Predictive Maintenance: Integrating sensors to monitor heat, vibration, and insulation degradation, enabling predictive maintenance that reduces unplanned downtime.
  • Next-Gen VSD Control: Developing variable speed drive packages that synchronize with industrial IoT networks to optimize real-time energy use.
Future motor technology research center

Technical Q&A: IEC Motor Selection & Standards

Expert insights on certification pathways, electrical configurations, and environmental safety measures for industrial motor applications.

What are the main differences between ATEX and IECEx explosion-proof standards?
ATEX is a mandatory European Union directive (Directive 2014/34/EU) that applies to equipment operated in hazardous environments within the EU market. In contrast, IECEx is an international certification scheme managed by the International Electrotechnical Commission. While ATEX relies on self-assessments or EU-notified body certifications, IECEx requires direct testing by an authorized body. Our motors carry both certificates to support global compliance.
How do IE4 and IE5 efficiency classes compare under the IEC 60034-30-1 standard?
IE4 designates "Super Premium Efficiency," while IE5 represents "Ultra Premium Efficiency." Moving from IE4 to IE5 reduces energy losses by approximately 20%. This is typically achieved using Permanent Magnet Synchronous Motor (PMSM) designs, which eliminate rotor winding losses compared to traditional induction motors.
What is the purpose of VPI (Vacuum Pressure Impregnation) in motor manufacturing?
VPI places the motor stator under vacuum to extract moisture and air pockets from the winding assembly, followed by the application of resin under pressure. This process creates a solid, moisture-resistant insulation system that improves heat dissipation and extends the motor's operating life under severe mechanical stress.
How do positive pressure shell type motors (YZYKS series) protect against hazards?
Positive pressure motors (Ex p type) maintain an internal pressure using clean, non-explosive air or inert gas. This positive pressure prevents external flammable gases or dust from entering the housing, making these motors suitable for high-voltage applications in volatile petrochemical environments.

Advanced Explosion-Proof & Mining Propulsion Systems

High-capacity variable speed drive motors built to meet ATEX, IECEx, and CE specifications for demanding heavy industrial operations.