Explore our top-performing three-phase asynchronous, explosion-proof, and variable frequency motors tailored for high-risk hazardous environments.
Shaanxi Nanfang Motor Technology Co., Ltd is the authorized distributor of Wolong. Wolong Electric Drive Group Co., Ltd was founded in 1984 and successfully listed in 2002 (code SH600580). After more than 30 years of development, Wolong has 3 manufacturing bases, 39 factories, and 3 R&D centers worldwide now. Wolong has always focused on the manufacture of motors and control systems, committed to a global brand strategy, making Wolong a leader in R&D, technology, process, manufacturing and sales in the global market.
By integrating top-tier design intelligence across domestic and European centers, we deliver cutting-edge solutions for high-demand industrial sectors. Our mission is to bridge advanced engineering with localization requirements, offering a seamless path to energy efficiency and operational safety.
Production facilities globally providing uninterrupted supply chains.
Countries and regions actively utilizing our advanced drive systems.
Patents registered in the field of explosion-proof and high-voltage technologies.
Major infrastructure projects engineered and executed successfully.
Unifying state-of-the-art vertical integration, raw materials access, and high-precision testing protocols.
Global procurement heads face the constant challenge of balancing strict regulatory compliance (such as CE, ATEX, and IECEx) with commercial efficiency. Sourcing electromotors from Chinese factories like Wolong Nanyang provides a competitive edge that is difficult to replicate elsewhere. The advantages go beyond mere cost reduction:
Our automated stator winding and VPI (Vacuum Pressure Impregnation) plants utilize robotics to eliminate human error, ensuring consistent insulation thickness, structural density, and unmatched electrical resistance properties.
How organic growth and strategic acquisitions built a global powerhouse in drive technology.
Wolong acquired 97.94% of the Austrian ATB Group (ATB motor), one of the three major European motor manufacturers. This brought legendary brands into the portfolio, including Schorch (established 1882, renowned for high-quality heavy drive systems in petrochemical fields) and Morley (boasting a 130-year heritage in producing rugged flameproof motors for underground coal mining equipment).
Laurence Scott joined the group, providing critical technology for low starting current systems and naval defense auxiliary power generators. Concurrently, Brook Crompton Motors brought deep mastery of energy-efficient motor designs, paving the way for the premium Brook Crompton "W" and "10" series suitable for ultra-harsh and hazard-prone environments.
In 2015, China’s largest explosion-proof research and manufacturing base, Nanyang Explosion-proof Group (CNE), officially joined Wolong. In 2018, General Electric (GE) Industrial Motors division aligned with Wolong, strengthening the group's footprint across American heavy industries, oil & gas, and water treatment sectors.
Inside the engineering that guarantees electrical reliability, mechanical shock resistance, and minimum energy loss.
Features squirrel cage designs utilizing centrifugal aluminum casting or high-precision die-casting. The integration of end rings and rotor bars prevents voids, minimizing mechanical slip. Large-capacity motors use copper bars welded with state-of-the-art procedures and protective rings for high-speed operation.
The winding uses polyester film and glass-cloth-reinforced mica tapes. Impregnated via the Vacuum Pressure Impregnation (VPI) process, the coils achieve exceptional mechanical strength, complete moisture exclusion, and excellent thermal stability (Class F or H insulation).
Engineered using digital multi-physics simulation platforms, our frames utilize premium cast iron or high-tensile steel. High structural redundancy guarantees natural frequency isolation, superior heat dissipation, low vibration levels, and resistance to severe mechanical shocks.
Incorporates an optimized air guide cylinder, silencer plates, and sound-absorbing composite linings. The aerodynamic design prevents drag, reduces propagation noise, and achieves an IP22 rating that isolates operational parts from human contact.
Mitigating risk in explosive, maritime, and ultra-high-efficiency application zones.
Operating a high-power facility requires complete confidence in hardware reliability and safety certification. Wolong's comprehensive global certification framework allows seamless deployment of high-voltage and low-voltage motors across diverse regulatory landscapes:
Nemko/ATEX
CSA
CE
CC
SABS
TESTSAFE
From deep-sea drilling rigs to modern industrial automation systems.
Refineries operate constantly in Zone 1/2 environments where gas vapors pose explosive hazards. Wolong's positive-pressure type (TZYW) and flameproof variable frequency motors (YBBP) provide safety under fluctuating torque requirements, protecting pumps, compressors, and blowers.
Underground coal conveyors and shearers face dust and mechanical impacts. The YBU/YBUS/YBUD tunnel boring machine motors and YBSS series flameproof conveyors are designed with high-strength cast-iron housings to withstand these demanding conditions.
Laurence Scott naval auxiliary generators and YKK high-voltage induction motors supply critical drive capacity to ocean vessels and energy grids. Designed with low starting currents, they prevent grid voltage drops during start cycles.
How the next generation of drive systems aligns with environmental targets and industrial IoT.
As global carbon targets tighten, efficiency standards are shifting from IE3/IE4 to IE5 Ultra-Premium Efficiency and beyond. Shaanxi Nanfang Motor and Wolong lead this transition through the integration of permanent magnet (PM) synchronous technologies. Traditional induction motors lose energy in the rotor due to heat; PM motors eliminate these losses, showing significant energy savings under partial load conditions.
Additionally, predictive maintenance is changing how heavy machinery is managed. By integrating smart vibration and thermal sensors (such as OLI Ex-certified sensors), real-time stator temperature and bearing wear data can be transmitted to cloud monitoring software. This prevents unexpected downtime and shifts maintenance schedules from reactive to predictive.
Our permanent magnet synchronous motor ranges reduce energy dissipation by up to 35% compared to standard asynchronous platforms, resulting in clear lifecycle cost reductions for high-utility pumps and compressors.
High-efficiency low-voltage and variable frequency motors tailored to global engineering standards.
Direct technical guidance on sourcing, compliance certifications, and implementation.
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