High-torque, high-efficiency explosion-proof and standard industrial motors configured for severe mixing duty cycles.
Shaanxi Nanfang Motor Technology Co., Ltd. serves as the authorized global distributor of Wolong Electric Drive Group Co., Ltd. Founded in 1984 and listed on the Shanghai Stock Exchange in 2002 (code SH600580), Wolong has advanced over three decades to become a dominant global force in industrial drives. Today, Wolong operates 3 major manufacturing bases, 39 state-of-the-art factories, and 3 global R&D centers. By prioritizing a globalized brand strategy, Wolong delivers top-tier engineering, manufacturing, and technical support across petrochemical, pharmaceutical, mining, marine, and food mixing industries.
Through strategic integration, Wolong unites the world's most trusted motor manufacturers under a single system solution.
In 2011, WOLONG group acquired 97.94% of the Austrian ATB Group, positioning itself as a top-tier European drive system developer. This integration included the legendary Morley brand—synonymous with high-duty mining motors for over 130 years—and Laurence Scott, renowned for pioneering low-starting-current naval and power generation motors, earning the prestigious Queen's Award for three consecutive years.
Boasting over a century of mastery in technological innovation, Brook Crompton joined the WOLONG group, leading the market in developing premium energy-efficient motor systems. The "W" and "10" series low, medium, and high voltage AC motors are optimized specifically for severe and hazardous processing operations.
Established in Germany in 1882, Schorch sets the standard for high-power drive systems. These heavy-duty industrial motors run critical operations worldwide in petrochemical refinery mixers, water processing, tunnels, and high-capacity shipbuilding projects.
In 2015, CNE—China's premier explosion-proof motor researcher—joined Wolong, introducing advanced explosive gas and dust protection technology. In 2018, General Electric (GE) industrial motor division allied with WOLONG, integrating American NEMA compliance and heavy industrial process expertise.
How our integrated technology platforms resolve the core mechanical challenges of industrial mixers.
Complete explosion protection systems for zones with explosive gases and combustible dust. Fully compliant with Directive 2014/34/EU and international safety requirements.
IE3, IE4, and Ultra-Premium IE5 energy efficiency classes available. Options include high-performance Permanent Magnet Synchronous Motors (PMSM) for lower operating expenses.
Robust shafts, reinforced bearings (NU/standard thrust type), and C5-M marine-grade corrosion protection to withstand the severe axial and radial loads of high-viscosity mixers.
Mixing operations demand unique motor characteristics compared to standard pumps or fans.
Industrial mixing and blending machines—such as batch reactors, ribbon blenders, high-shear emulsifiers, and planetary mixers—represent some of the most challenging drive applications in the process industries. Unlike centrifugal loads, mixer duties are characterized by non-Newtonian viscosity profiles, sudden fluid state changes, and high starting-torque requirements under loaded conditions.
Our engineering approach matches the motor design with the specific fluid dynamics of your application:
A deep dive into the component-level engineering that ensures thermal and structural integrity under continuous load.
The rotor features a squirrel cage configuration, with cast aluminum components widely utilized. These rotors are manufactured using centrifugal aluminum casting or die-casting techniques, where molten pure aluminum is poured into the rotor core slots. This forms a single-piece construction integrating the rotor bars and end rings.
This structural integrity provides excellent startup and breakdown torque characteristics. For high-capacity operations, we employ copper bar rotors, utilizing high-reliability bar securing and end ring induction welding procedures. The protective ring design of high-speed configurations further ensures stable rotor operation.
Our motor coils are crafted from polyester film reinforced with glass cloth, using high-content, low-powder mica tape or medium-powdered mica tape. Following the VPI (Vacuum Pressure Impregnation) process, the coils emerge as finished units ready for assembly.
The winding and insulation system is designed for class H thermal capability, rated Class F temperature rise, providing electrical, mechanical, and moisture resistance for trouble-free operation on Variable Frequency Drives (VFDs).
The motor frame is developed utilizing a digital simulation platform for structural, vibration, and thermal multi-physics modeling. Built from high-strength cast iron (with cast steel options), the frame features robust structural thickness, high heat dissipation efficiency, and structural natural frequency margins.
This structure resists high mechanical shock, limits vibration, and maintains low internal temperatures during continuous heavy-duty mixing.
The low-noise ventilation system integrates a fan cover body, air guide cylinder, protective window, and internal silencer plates. The compact, lightweight design minimizes structural resonance.
A side-inlet air design avoids blockages from overhead piping, reducing turbulence and air noise. The system incorporates sound-absorbing linings, while maintaining an IP22 rating to prevent direct contact with rotating elements.
Decarbonization, smart factories, and direct-drive technology shape the next decade of process engineering.
As industrial manufacturing targets lower carbon emissions, standard induction motors are shifting toward next-generation technologies. Shaanxi Nanfang Motor and Wolong are leading this transition with developments in three main areas:
Eliminating gearboxes via high-torque Permanent Magnet Synchronous Motors (PMSM). Direct coupling increases system efficiency by 10-15%, lowers noise, and eliminates gearbox maintenance and oil leakage risks.
Integrating vibration, temperature, and magnetic flux sensors directly into the motor housing. Cloud-based analytics allow operators to monitor mixer health and prevent unscheduled process downtime.
Matching the drive controller directly to the motor frame. Eliminating long motor cables reduces electrical harmonics, electromagnetic interference (EMI), and simplified overall field installation.
How Wolong leverages scale, robotics, and logistics to secure global project timelines.
Global industrial operations require reliable lead times and consistent assembly quality. To meet this demand, Wolong has implemented Industry 4.0 smart manufacturing systems across its 39 factories. Automated winding machines, computerized VPI systems, and dynamic balance test stations ensure that each motor meets precise specifications.
By maintaining raw material reserves of copper, electrical steel, and cast iron, Shaanxi Nanfang Motor protects customers from supply chain disruptions. Close partnerships with major shipping lines ensure reliable logistics support, keeping project schedules on track.
Designed for worldwide installation. Certified by leading international safety bodies.
WOLONG has secured major global product certifications, enabling installation in hazardous, marine, and standard industrial locations worldwide:
Nemko / ATEX
CSA
CE
CCC
SABS
TESTSAFE
Key technical parameters for choosing mixer machine motors.
Selecting a mixer machine motor requires assessing mechanical loads, electrical profiles, and local regulations. A standard pump motor can struggle in high-viscosity applications. Focus on these three metrics:
Answers to common engineering and procurement questions regarding process mixing drives.
High-capacity variable speed and wound rotor motors for large-scale industrial mixing processes.
NANFANG
