Engineered for hazardous conditions, offshore operations, and highly efficient dynamic applications.
Aligning structural engineering, global energy standards, and system security to maximize output efficiency.
We build structural systems conforming to European (IECEx, ATEX) and North American (UL, CSA) explosion-safety, efficiency (IE3, IE4, IE5), and footprint rules, allowing smooth cross-border integration.
Utilizing high-end insulation technologies coupled with finite element modeling to ensure components perform well under high-load shifts, minimizing downtime in continuous processing setups.
We work with global design teams to supply customized shaft geometries, dynamic voltage options, tailored sensor systems, and special cooling structures optimized for specialized pump and compressor installations.
Shaanxi Nanfang Motor Technology Co., Ltd. serves as an authorized distributor of Wolong Electric Drive Group Co., Ltd. Established in 1984 and listed on the Shanghai Stock Exchange in 2002 (SH600580), Wolong has grown to become a global leader in motor manufacturing and control solutions.
Today, Wolong operates a global network of 3 manufacturing bases, 39 factories, and 3 research and development centers. With advanced design facilities in Europe, Asia, and the Americas, the group delivers high-performance drive solutions to heavy industries worldwide.
LEARN MORE ABOUT OUR SOLUTIONSWhy manufacturing partnerships centered in China deliver superior value, rapid scalability, and compliance reliability.
Direct proximity to critical raw materials—such as high-grade electrical steel laminations, rare-earth magnets, and refined copper wire—reduces lead times and mitigates global shipping risks.
State-of-the-art robotic winding setups, automatic VPI tanks, and multi-axis CNC component machining facilities deliver dimensional precision and high batch consistency.
Access to major international shipping routes and deep-water ports ensures reliable transit schedules and flexible delivery arrangements to key industrial zones worldwide.
Access to experienced local design engineers allows for rapid development cycles, fast prototyping, and reliable mechanical conversion for custom applications.
Comprehensive test fields enable full-load temperature run tests, dynamometer torque evaluations, vibration spectrum analysis, and explosion-safety integrity verification before shipping.
High-volume manufacturing processes minimize fixed operational overhead, allowing cost savings to be reinvested into premium materials and advanced insulation systems.
Tracing Wolong’s expansion and integration of historic international industrial motor brands.
Detailed analysis of the rotor, stator, frame, and ventilation systems designed for challenging operating environments.
The rotor features a rugged squirrel-cage design. Low-voltage variants employ centrifugal cast aluminum or die-cast pure aluminum structures, integrating the rotor bars and end rings into a solid, cohesive unit. This robust construction provides high mechanical strength and reliable torque characteristics.
For larger, heavy-duty applications, copper bar rotors are used. The copper bars are secured into the rotor slots and joined to the end rings using advanced welding procedures. High-speed models are fitted with protective retaining rings to prevent component deformation under centripetal stress.
Stator coils are wrapped with polyester film and glass-reinforced mica tape to ensure robust dielectric strength. The wound stator core undergoes a complete Vacuum Pressure Impregnation (VPI) cycle with high-grade solventless resin.
This VPI process eliminates internal air pockets, creating a moisture-resistant, structurally solid core. This helps protect the windings against physical vibration, thermal cycling, and corrosive chemical atmospheres.
The motor frames are designed using multi-physics simulation software, optimizing structural rigidity and heat dissipation pathways. Cast in high-strength grey iron or fabricated from heavy-gauge structural steel, these frames protect the internal stator assembly.
The robust housing design offers excellent vibration damping, helps maintain internal alignment, and prevents mechanical distortion under high torsional loads.
The low-noise ventilation system consists of an engineered fan cover, air guide cylinder, protective inlet screen, and sound-absorbing baffles. The side-entry air design reduces flow resistance and limits acoustic output.
This system complies with IP22 ingress protection guidelines, preventing accidental contact with the rotating fan blades while ensuring consistent cooling airflow over the frame cooling fins.
Our industrial motors are certified by leading global bodies for deployment in demanding environments.
ATEX / Nemko
CSA
CE
CCC
SABS
TESTSAFE
To support global trade and integration, our products conform to key international performance and safety standards:
Engineered drive systems designed for reliable operation across critical global industries.
Explosion-proof motors (such as the YBBP and YB3 series) drive pipeline pumps, gas compressors, and refining machinery in hazardous environments.
YQ series marine motors feature DNV type approval and corrosion-resistant finishes, designed to withstand saltwater exposure and high humidity on vessel decks.
YBSS and YBSD flameproof motors provide high starting torque, driving heavy-duty underground coal conveyors and mineral processing systems.
Key technical queries regarding OEM electrical motor manufacturing, insulation design, and certifications.
High-voltage, explosion-proof, and custom asynchronous motors for critical processes.
NANFANG