Explore our core certified configurations engineered for high-performance and severe-duty applications.
Shaanxi Nanfang Motor Technology Co., Ltd. stands as the primary authorized distributor of 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 preeminent global titan in electric motors and control drives. With 3 major manufacturing bases, 39 state-of-the-art factories, and 3 global R&D centers, Wolong delivers unparalleled research, process design, and localized technical sales to heavy industries across five continents.
Our combined mission is to supply modern industries with high-efficiency motor solutions that directly address the dual challenges of carbon reduction and process reliability. Operating as a unified hub of technical expertise, we ensure that every low voltage and high voltage induction motor complies with localized safety guidelines, extreme environment parameters, and the highest mechanical engineering standards.
Over three decades of strategic global acquisitions bringing world-class motor engineering under one unified standard.
Acquired in 2011, ATB is one of Europe's top three motor manufacturers. The group represents the pinnacle of customized industrial drive engineering, incorporating Morley and Laurence Scott brands into the Wolong portfolio.
Boasting a history of nearly 130 years, Morley is the definitive leader in heavy-duty, flameproof motors for underground coal mines. Synonymous with extreme durability, high specification, and explosion protection.
Pioneering motor supplier for British nuclear power plants and naval vessels. Famous for advanced low-starting-current configurations and large industrial generators designed for high-stress applications.
Over a century of mastery in motor efficiency. Brook Crompton is famous for its "W" and "10" series of low and medium voltage motors, establishing the baseline for modern ecodesign and energy-saving designs.
Established in 1882, Schorch sets the standard for high-power drive systems. These heavy industrial motors are widely used in chemical plants, offshore oil platforms, steel mills, and municipal water management.
A global leader in vibration motors (MVE) and high-precision Ex-proof vibration sensors. OLI has partner-operated with Wolong in China since 1999 to dominate the materials handling and industrial sorting market.
China's largest research and production base for explosion-proof motors. Merged with Wolong in 2015, CNE brings top-tier flameproof technology used in military, nuclear power, and petrochemical applications.
In 2018, GE's commercial and industrial motor division joined Wolong. GE's decades of severe-duty motor manufacturing experience provides unmatched stability to US industrial sectors, mining, and paper mills.
How our advanced IE3, IE4, and IE5 motor designs reduce operating expenses while meeting stringent environmental targets.
We supply explosion-proof and dust-ignition-proof motors with global certifications, ensuring absolute safety in hazardous gas and dust atmospheres (Zones 1, 2, 21, and 22).
Available in IE3, IE4, and super-premium IE5 efficiency bands. Utilizing permanent magnet AC (PMAC) designs to significantly reduce utility bills and peak power demands.
From Marine DNV-certified motors to water-cooled variable frequency drives for heavy conveyors, our custom engineering matches any voltage, torque curve, or dimension.
In typical commercial and industrial installations, electric motors consume roughly 65% to 70% of total electrical power. Transitioning from legacy standard motors to IE4 or IE5 ultra-high-efficiency electric motors can achieve a direct energy consumption reduction of 3% to 8% per unit. When scaled across petrochemical complexes, municipal water plants, or mining conveyors, the annual financial savings reach hundreds of thousands of dollars.
Furthermore, our variable frequency speed regulation (YBBP/WEBP3 series) allows system operators to adjust motor output match precise flow and pressure needs, bypassing energy-wasting mechanical restrictors like valves or dampeners. This variable load adaptability prevents system over-design and significantly prolongs the service life of connected mechanical equipment.
Every stator, rotor, frame, and enclosure is optimized using multi-physics simulations to withstand heavy workloads.
Our rotors feature premium squirrel cage designs. Cast aluminum rotors are produced using centrifugal casting or die-casting techniques, sealing the rotor bars and end rings into a monolithic block. This creates exceptional balance and prevents mechanical fracturing under high starting torque. For mega-capacity low voltage motors, we employ welded copper bar rotors featuring robust end ring brazing and carbon-fiber wrapping on high-speed configurations to combat centrifugal forces.
The core stator windings use high-grade copper wires insulated with polyester film and structural glass cloth. We utilize low-powder and medium-powdered mica tape with high mica densities to ensure high dielectric barrier strength. Following assembly, the wound stator undergoes a full VPI (Vacuum Pressure Impregnation) process with high-temperature baking. This results in a void-free insulation system with superior moisture resistance, thermal stability, and mechanical strength.
Constructed using high-strength cast iron (with steel alternatives for high-impact zones), our motor frames are engineered using finite element analysis (FEA) to maximize surface area heat dissipation while remaining structurally rigid. The design isolates natural vibration frequencies to prevent harmonic resonance with connected equipment. Thick-walled junction boxes and heavy hoisting lugs ensure maximum safety during installations and field maintenance.
Our low-noise cooling systems consist of a compact fan cover body, an air guide cylinder, a protective window, and acoustic silencer plates. By placing the air inlet on the side, we optimize airflow even when positioned near walls. The acoustic path dampening absorbs operational noise, reducing overall motor decibel levels. Rated to IP22/IP55, the hood prevents finger or tool contact with rotating parts while allowing maximum ventilation.
We maintain a rigorous quality assurance framework to ensure global export compliance and safety approval.
Nemko / ATEX
CSA Group
CE Directive
CCC (China)
SABS (South Africa)
TESTSAFE
Operating in hazardous, volatile environments requires absolute adherence to structural certification safety standards. At Wolong, we submit our low and high voltage motor series to exhaustive testing regimes supervised by external accredited testing labs:
Tailoring our electric motor designs to the specific environmental and chemical realities of your region.
Our YQ series low voltage marine motors carry DNV Type Approval, with optional BV, ABS, or CCS certifications. They are built using anti-corrosive coatings, stainless steel shafts, and double-lip shaft seals to repel salt spray, moisture, and high temperatures in engine rooms and deck winches.
Featuring the heavy-duty Morley and YBK3 series, our flameproof motors operate reliably in coal mines containing high levels of methane gas and combustible dust. With heavy cast-iron ribbed frames and high starting torque, they easily drive heavy conveyor systems, crushers, and shearers.
Wolong's YBBP and WEBP3 series variable frequency explosion-proof motors are designed for high-vibration refinery environments. They control pipelines, fans, and compressors, adjusting to fluctuating process demands without sparking risks.
Investing in smart automation, internet-of-things (IoT) diagnostics, and next-generation magnetics.
The global push for zero-carbon manufacturing has forced a paradigm shift in motor design. Standard AC induction motors are reaching their physical limits under existing economic designs. Wolong is currently commercializing next-generation Permanent Magnet Synchronous Motors (PMSM) that exceed IE5 efficiency specifications across their entire speed range. By replacing traditional aluminum rotor windings with permanent magnets, rotor electrical losses are eliminated, resulting in a cooler-running motor that consumes less power under partial loads.
Partnering with the OLI Vibration Sensor group, Wolong is integrating wireless health sensors directly into low and high voltage industrial motors. These sensors monitor real-time vibration, casing temperature, and coil health. Using edge-computing algorithms, they predict bearing failures, stator insulation degradation, or shaft misalignment weeks before they occur. This reduces unplanned downtime and lowers maintenance costs by replacing scheduled intervals with dynamic, condition-based maintenance.
Our future engineering roadmap emphasizes green manufacturing. From non-toxic VPI resins to highly recyclable cast steel and pure copper components, we ensure that every low voltage motor is built for a circular economy. In addition, we offer refurbishment services for our large-frame motors, extending their operational lifespan for another decade of reliable service.
Professional engineering answers to your technical queries on low voltage electric motors.
Contact us today for custom engineering solutions, project bidding, and volume distribution pricing.
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