Select certified electric motor solutions configured to your precise engineering specifications.
The transition toward decarbonized operations, automated infrastructure, and harsh-environment processing has put standard electric motors at the very core of global industry.
Electric motor systems in industrial environments account for roughly 70% of the total industrial electricity consumption globally. As governments implement strict carbon-neutral policies, standardizing electric machinery has moved from a convenience to a strict regulatory mandate. The International Electrotechnical Commission (IEC) establishes testing and classification guidelines (specifically IEC 60034-30-1) that define efficiency metrics globally.
With the gradual phase-out of IE1 and IE2 class systems in major economic regions (EU, North America, East Asia), global enterprises are under pressure to integrate IE3 (Premium Efficiency), IE4 (Super Premium Efficiency), and IE5 (Ultra-Premium) drive solutions. This structural transition creates severe sourcing challenges for global procurement directors who require customizable mounting orientations, variable voltage tolerance, and explosion-proof integrity that comply across multiple regional regulatory regimes.
| IEC Efficiency Class | Efficiency Rating Name | Standard Application Areas | Average Energy Savings (%) |
|---|---|---|---|
| IE1 | Standard Efficiency | Legacy installations, low-run operational systems (phasing out) | Baseline |
| IE2 | High Efficiency | Small fans, ancillary fluid pumps (strictly restricted in the EU/US) | Up to 3.5% vs IE1 |
| IE3 | Premium Efficiency | Standard heavy-duty continuous industrial compressors, conveyors | Up to 7.0% vs IE1 |
| IE4 | Super Premium | Chemical refining, continuous petrochemical processes, steel mills | Up to 10.5% vs IE1 |
| IE5 | Ultra-Premium | Next-generation permanent magnet synchronous systems, heavy marine | Up to 14.0% vs IE1 |
Our OEM factory applies advanced structural simulations, material selection, and high-precision assembly methods to guarantee long life cycles under severe ambient stress.
The stator coil is meticulously crafted from polyester film reinforced with high-mica glass cloth. Using advanced VPI (Vacuum Pressure Impregnation) technology, the windings form a solid, void-free core with outstanding resistance to moisture, chemical vapor corrosion, and high dielectric shocks.
Featuring squirrel cage configurations using centrifugal aluminum casting or high-conductivity copper bars. Copper bar construction utilizes structural retaining rings to prevent distortion at extreme RPM, while integrated fan blades deliver reliable start-up torques.
Engineered through structural and fluid multi-physics simulations to optimize mechanical shock mitigation and thermal dissipation. Cast iron construction delivers rigid dimensional stability and high resonance isolation, securing critical inner alignments.
The low-noise ventilation enclosure combines a fan cover body, custom air guide cylinders, protective window structures, and integrated soundproofing plates. Designed with side-inlet acoustics, this system lowers flow losses while securing an IP22 / IP55 ingress protection standard rating that guarantees personnel safety and continuous thermal stability.
Shaanxi Nanfang Motor Technology Co., Ltd bridges the gap between premium global design and highly optimized industrial manufacturing.
Our industrial plant provides fully integrated engineering customization, allowing international procurers to modify frame materials, shaft layouts, terminal block positioning, and VFD specifications.
Operating within the world's most advanced industrial manufacturing zones, our supply chain reduces structural sourcing delays for raw steel, high-purity copper, and rare-earth magnetic elements.
Every motor undergoes precision dynamic balance evaluations, stator dielectric insulation testing, and temperature-rise checks under simulated full loads before leaving the assembly floor.
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.
Wolong has strategically integrated renowned international brands to build a comprehensive technological ecosystem.
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. ATB motor group included the brand Morley in the mining industry and Laurence Scott, both excellent in motor manufacturing.
Morley Motor: With its nearly 130-year history, Morley is highly esteemed in the global underground coal market, standing as a synonym for quality, power, and reliability.
Laurence Scott: Renowned for manufacturing equipment with low starting currents, Laurence Scott supplied motors for British nuclear power plants and naval vessels. Following its acquisition by WOLONG, the company was honored with the Queen's Award for three consecutive years.
Furthermore, Brook Crompton Motors joined WOLONG group as well. 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.
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.
Schorch electric motor joined WOLONG in 2011. Since its establishment in 1882, Schorch has set the standard for high-quality motors, catering to oil and gas, chemicals, power generation, water supply, test stations, and tunnels globally.
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 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 base—joined the WOLONG Group. With various explosion-proof motors, low voltage asynchronous motors, and Ex-proof high voltage motors, Nanyang's products are widely used in oil, coal, chemical, metallurgy, and nuclear power.
In 2018, General Electric (GE) commercial and industrial electrical division partnered with WOLONG. This partnership leverages GE's historic manufacturing expertise to support heavy industries like oil and gas, power generation, mining, and water treatment.
Our electric motors satisfy demanding electrical and safety compliance standards worldwide.
International Quality Management System certification securing reliable production workflows.
Meets safety standards required for distribution throughout North American territories.
Total alignment with European health, safety, and environmental protection legislations.
Opens the channel for mining and industrial motors to enter Australian and global coal mining markets.
WOLONG has secured the majority of product certifications, enabling it to penetrate the international market seamlessly. In addition to ISO 9001 and CE, our production lines conform strictly to:
WOLONG's drive systems are integrated into critical infrastructure projects across the globe.
Whether operating on offshore drilling rigs or refinery distribution systems, our explosion-proof motors (such as the YB3 or YBBPX series) offer safety guarantees. They prevent internal sparking from igniting flammable external gases (ATEX Zones 1 & 2).
Morley and CNE flameproof motors are engineered for underground mining environments. They drive heavy-duty tunnel boring machines, continuous mine pumps, and conveyors under high loads, humidity, and volatile dust conditions.
Our low-voltage asynchronous water pump motors (YBRB flameproof pumps) and 40kW electric outboards support fluid logistics and maritime transport. They feature durable double-lip shaft seals and salt-fog-resistant frame coatings.
Identify critical metrics to ensure long-term ROI and compliance when sourcing IEC motors.
Global procurement managers must look beyond unit price to determine the total cost of ownership (TCO) of their motor assets:
IoT-Enabled Diagnostics: Real-time temperature, vibration, and current monitoring are becoming standard, enabling predictive maintenance.
Permanent Magnet Integration: PM motors are expanding in low-speed, high-torque industrial applications, bridging efficiency levels toward the IE5 threshold.
Get answers to common technical and commercial questions about IEC standard electric motors.
High-protection class electric motor options for critical fluid logistics and heavy machinery.
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