Explore our leading industrial electric motors, engineered for maximum performance, efficiency, and reliability under harsh operational environments.
Shaanxi Nanfang Motor Technology Co., Ltd. stands as the authoritative global distributor of Wolong Electric Drive Group Co., Ltd. (founded in 1984, listed on the Shanghai Stock Exchange, code SH600580). Over nearly four decades of industrial engineering excellence, Wolong has established itself as the premier motor manufacturer globally, boasting 3 manufacturing bases, 39 state-of-the-art factories, and 3 worldwide R&D centers.
By focusing relentlessly on the design, optimization, and production of high-performance electric motors and intelligent control systems, Wolong integrates advanced power technology with high-efficiency mechanics, serving demanding heavy industries worldwide.
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Delivering high torsional stiffness, perfect shaft alignment, and absolute durability for direct-drive machinery.
Our flange-mounted motors are fully compatible with international standard mounting designs. Whether you need a standard B5 large flange (where the clearance holes are outer-rim based) or B14 small face flange (tapped holes directly on the face), or B35 (combined foot and flange configuration), Nanfang Motor delivers structural dimensional accuracy to the millimeter.
High-quality flange motors require exact runout limits for shafts and flanges. We engineer our motors to comply with tight eccentricity and shaft alignment tolerances, preventing axial load stress on bearings, ensuring vibration levels remain below 1.5 mm/s, and vastly extending the life of coupled machinery such as gearboxes and pumps.
Operating in harsh wet, dusty, or gaseous environments? Our flange motors come standard with IP55 ingress protection, with options for IP56, IP65, and IP66. Incorporating advanced radial shaft seals, oil seals, and labyrinth ring protection, our motors keep contaminants completely isolated from the winding chamber.
Combining the heritage of European engineering with advanced high-capacity Chinese manufacturing.
Acquired in 2011, ATB is one of Europe's top three motor manufacturers. Known for high-end customization and unparalleled efficiency, the group includes historic sub-brands Laurence Scott and Morley.
A century-old pioneer in electric motor technology and structural innovation. Brook Crompton is famous for high-efficiency design paradigms (Premium "W" and "10" series) and explosion-proof motors.
Established in 1882, Schorch sets the standard for high-power drive systems, manufacturing robust low, medium, and high-voltage motors for the global oil, gas, chemical, and metallurgy sectors.
Synonymous with heavy-duty reliability in underground coal mining operations. With over 130 years of underground motor development, Morley provides specialized mechanical explosion protection.
Renowned for engineering motors with exceptionally low starting currents. Historically trusted for British nuclear power facilities and Navy generators requiring the absolute highest reliability.
Our alliance includes OLI (vibration motor global leader) and GE's commercial & industrial motor business (joined in 2018), integrating century-old US heavy manufacturing technologies into our ecosystem.
The global industrial landscape demands a balance of high-end performance, swift delivery, and cost efficiency. Manufacturing flange electric motors in China offers massive supply chain advantages that European and American local plants struggle to match:
Every element is engineered for stability, heat dissipation, and long-term mechanical survival.
Our rotors feature a robust squirrel-cage design. For low-voltage standard units, we utilize cast aluminum rotors produced via high-pressure die casting or centrifugal casting methods. This fuses the rotor bars and end rings into a solid, highly conductive unit, improving starting torque and mechanical integrity. For large-frame high-voltage motors, we use copper bar rotors welded using advanced brazing, with custom dynamic balancing to ISO G1.0/G2.5 specifications to eliminate vibrations.
The stator core is stacked with high-permeability, low-loss silicon steel sheets. Winding coils are wrapped in corona-resistant polyester film and glass cloth, insulated with high-grade mica tapes. Our entire stator assembly undergoes the VPI (Vacuum Pressure Impregnation) process, curing under precise temperatures to form a solid mass. This structure provides extreme moisture resistance, high dielectric strength, and Class F or H insulation, preventing electrical breakdown even under heavy overload conditions.
Our motor frames and mounting flanges are cast from high-grade cast iron or structural steel. Using advanced multi-physics simulation software, we model both thermal heat dissipation and structural vibration frequencies. The resulting frame features optimized cooling fins, thick flange faces that resist cracking, and excellent torsional rigidity, allowing the motor to handle high starting forces and severe mechanical shocks.
Our cooling system consists of an aerodynamic, low-noise fan cover, air guides, and a high-efficiency fan. The air inlet design minimizes airflow restriction, reducing drag and noise. Sound-absorbing materials inside the hood reduce high-frequency acoustic emissions. This meets IP22 protection limits while keeping noise levels well below industry standards, complying with OSHA and international plant noise guidelines.
Powering heavy industry, global energy, and automated infrastructure.
Operating in Zone 1 and Zone 2 hazardous areas requires absolute spark and explosion protection. Our ATB-brand, Nanyang-brand explosion-proof flange motors (YZYKK, YBBPX series) power critical compressors, transport pumps, and cooling fans in refineries, pipelines, and offshore platforms.
Mining operations require highly rugged equipment. The Morley series and YBK3 flameproof motors are designed to operate safely in environments containing coal dust and methane. Mounted directly on conveyors and cutters, they handle massive starting loads and high vibrations.
Our high-efficiency flange motors (IE3, IE4, IE5) drive high-flow vertical turbine pumps, water aeration systems, and sewage processors. Their IP56 moisture protection and precision flange mountings ensure reliable, continuous operation in municipal facilities.
Our motors are certified to cross trade barriers and comply with international engineering regulations.
Nemko / ATEX
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WOLONG's commitment to compliance allows us to supply motors for projects anywhere in the world:
Expert answers to the most common engineering and procurement questions regarding flange-mounted electric motors.
Explore our wider range of high-voltage, explosion-proof, and variable frequency motors for global industrial projects.
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