Engineered for extreme performance, variable speeds, and hazardous environment explosion protection.
The Authorized Global Distribution Gateway for Wolong Electric Drive Group.
Shaanxi Nanfang Motor Technology Co., Ltd. stands as the authoritative global distributor of Wolong Electric Drive Group Co., Ltd. (founded in 1984, listed in 2002 under stock code SH600580). Over nearly four decades of strategic vertical integration and technical evolution, Wolong has constructed an robust international manufacturing network consisting of 3 global manufacturing bases, 39 advanced factories, and 3 state-of-the-art R&D centers worldwide.
Our commitment strictly aligns with a premium global brand strategy. By integrating elite international motor brands and engineering methodologies, we have established unparalleled authority in industrial motor R&D, manufacturing processes, high-level explosion-proof safety, and customized structural configurations. Our solutions are deployed across complex geological, petrochemical, and construction projects globally, providing safe, efficient, and continuous power.
Setting the standard in motor engineering for mining, continuous batching, and high-safety infrastructure operations.
Complete regulatory clearance for hazardous zones, ensuring explosion-proof and flameproof safety across oil, gas, chemical, coal mining, and cement dust atmospheres.
Next-generation green motor topography including ultra-efficient induction lines and permanent magnet AC synchronous variants (TBVF series) to reduce operational carbon footprints.
Encompasses low-voltage marine motors, positive-pressure housing motors, tunnel boring machinery drives, and heavy high-voltage industrial series from 380V to 10kV.
A technical deep-dive into standard topologies, extreme environmental considerations, and material performance vectors.
In concrete batching and continuous cement mixing systems, the electric motor acts as the heart of the mechanical drive. The mixing drum demands immense start-up torque under full load conditions (locked-rotor torque capability) coupled with high thermal capacity to handle heavy starting duty and continuous cyclical speed adjustments. Standard commercial induction motors often fail rapidly under such stress. Our high-torque motors are engineered to combat key failure modes: excessive fine dust aggregate infiltration, voltage spikes caused by VFD operations, and high-vibration structural fatigue.
Cement mixing operations present unique environmental challenges based on geographic location and application scale:
Our rotors feature a rugged squirrel-cage design optimized for high-slip, high-torque cement mixer applications. Cast aluminum rotors are produced using centrifugal casting or advanced high-pressure die-casting, ensuring complete elimination of internal air pockets or cold junctions. This structural integrity guarantees excellent torque transmission during sudden aggregate loading. For higher capacity, high-voltage industrial applications, copper bar rotors are utilized, utilizing specialized welding techniques for end-rings to withstand thermal fatigue from repeated startup stress cycles.
The winding coils utilize high-grade copper conductors insulated with glass cloth reinforced polyester film and high-mica-content tapes. The entire assembly undergoes a comprehensive Vacuum Pressure Impregnation (VPI) cycle. This process ensures the insulation resin fully penetrates every micro-cavity, transforming the stator winding into a solid, moisture-impervious block. The system provides excellent dielectric strength, exceptional heat dissipation, and Class H thermal resistance to handle heavy concrete agitation cycles without degradation.
To withstand extreme physical shocks and continuous structural vibration from mixer gearboxes, the motor frame is engineered using multi-physics simulation platforms. Cast from high-strength cast iron, the frame features optimized cooling fin geometries that maximize airflow. Structural resonance margins are carefully calculated to prevent motor failures under intense harmonic loads. It provides outstanding mechanical rigidity, securing bearing alignments under heavy radial shaft loads.
Designed specifically for dust-heavy cement environments, the ventilation hood system integrates a low-noise fan cover, air-guide cylinders, protective internal mesh screens, and sound attenuators. The lateral air inlet minimizes direct aggregate dust intake, reducing impeller wear. Sound-absorbing lining inside the cover dampens acoustic energy, maintaining the overall motor noise signature below standard OSHA limits while ensuring an IP22/IP55 degree of physical protection against external objects.
As the construction and global batching plant sectors shift toward green, digitized operations, our engineering roadmap focuses on three pillars:
Our competitive advantage in supplying cement mixer motors rests on China's massive, vertically integrated manufacturing supply chain. Wolong's Nanyang production base is the country's largest research and production base for explosion-proof motors. By consolidating global motor pioneers under the Wolong umbrella, we deliver high-end international design standards backed by optimized Chinese manufacturing scales:
Why global concrete equipment manufacturers choose Wolong and Shaanxi Nanfang Motor.
Global R&D centers in China, Europe, and Japan, complemented by a central research institute in Shanghai. Our motor and drive control technologies are recognized as industry leaders worldwide.
Operating a portfolio of historic global brands: Nanyang Explosion, Brook Crompton, Morley, Laurence Scott, Schorch, and OLI, providing localized support worldwide.
Certified by national and international authorities including ATEX, IECEx, and CU-TR. Outstanding reliability in explosive gas, dust, and heavy mining environments.
Compliant with global electrical and mechanical design protocols for seamless deployment.
Nemko / ATEX
CSA Standard
CE Certification
CC (China Compulsory)
SABS South Africa
TESTSAFE Australia
- ISO Standards: Wolong maintains ISO 9001 quality management systems across all 39 factories, validating manufacturing repeatability, material traceability, and safety.
- NEMA Standards: To verify compliance with American standards, motors are tested for locked-rotor current, insulation resistance, duty cycle thermal limits, and vibration isolation. Wolong possesses complete UL and CSA safety certificates for low-voltage lines.
- IECEx and ATEX: Mandatory for all European and global oil, gas, chemical, and dust-hazardous environments. Motors undergo strict thermal and electrical spark testing.
- TESTSAFE Standard: Australia's leading mining and coal product certification. Compliance provides direct access to Australian heavy industries, coal mines, and continuous concrete processing plants.
Integrating pioneering motor technology brands into a unified global powerhouse.
ATB Motor Group (Austria): Acquired by Wolong in 2011, establishing a robust foothold in Europe. Its Morley mining brand brings a 130-year legacy in underground coal mining equipment, while Laurence Scott provides high-efficiency low-starting-current motor technology designed for naval and nuclear projects.
Brook Crompton Motors: Known globally for high-efficiency low and high-voltage motors, including the signature Brook Crompton 'W' and '10' series, designed for rugged industrial use.
Schorch Electric Motor (Germany): Since 1882, Schorch has supplied high-quality heavy drive systems for petrochemicals, oil and gas, tunnels, water treatment, and test stands.
Nanyang Explosion-Proof Motor (CNE): Integrated into Wolong in 2015, this facility is China's premier R&D center for explosion-proof and flameproof motor manufacturing.
Answers to technical and application questions from industrial engineers.
High-efficiency, dust-proof, marine-grade, and permanent magnet synchronous motors.
NANFANG
