Engineered to drive heavy industry safely, reliably, and efficiently across globally diverse hazard classifications.
Strategic intelligence on rotating equipment, efficiency directives, and transition maps.
Electric motors serve as the silent heart rate of global industrial manufacturing, consuming more than 45% of worldwide electricity. In critical machinery systems across oil and gas, processing mills, mining, and municipal water infrastructures, the efficiency and failure metrics of rotating equipment translate directly into bottom-line profitability and carbon accounting impacts.
The global commercial and industrial sectors are in the midst of a tectonic structural shift. Regulators in major economies are enforcing stricter minimum energy performance standards (MEPS), driving the industry away from historical IE1 and IE2 induction engines toward IE3 (Premium Efficiency), IE4 (Super Premium Efficiency), and IE5 (Ultra-Premium Efficiency) platforms. Concurrently, explosion protection compliance frameworks—dictated by ATEX, IECEx, and other regional statutory bodies—require absolute precision in flameproof design, positive pressure casing ventilation, and non-sparking configurations.
As an engineering-centric industry leader, Shaanxi Nanfang Motor Technology Co., Ltd. serves as a crucial integration partner in the supply and localized application of globally recognized motor solutions. By harnessing the massive production scale and technological depth of the Wolong Group, we connect heavy industries with motors built on more than a century of refined engineering history.
Bridging global research, century-old manufacturing legacy, and local integration expertise.
Shaanxi Nanfang Motor Technology Co., Ltd. is the authorized distributor of Wolong Electric Drive Group Co., Ltd. Wolong, founded in 1984 and listed on the Shanghai Stock Exchange in 2002 (code SH600580), has spent over three decades strategically expanding its global footprint. Today, the group operates 3 major manufacturing bases, 39 factories, and 3 state-of-the-art R&D centers worldwide. By consolidating legendary motor brands under a single unified global brand strategy, Wolong has taken up leadership in engineering, production efficiency, and local market compliance.
In 2011, WOLONG group successfully acquired 97.94% of the Austrian ATB Group, positioning WOLONG as a core player in the European premium electric motor market. This acquisition brought the historic brands Morley and Laurence Scott under the Wolong umbrella, enriching our technological portfolio.
Morley, with its 130-year history, is a world-renowned manufacturer of highly reliable explosion-proof motors designed specifically for harsh underground coal mining conditions. Laurence Scott stands as a pioneer in developing custom electric motors for naval defense vessels and low starting-current systems for nuclear power installations, holding consecutive Queen's Awards for export achievement.
Joining the Wolong Group, Brook Crompton Motors brings over a century of technology leadership in motor development. Known for introducing energy-efficient models like the "W" and "10" series, Brook Crompton has enabled the Group to offer comprehensive low, medium, and high voltage drive packages designed for harsh hazardous operating environments.
In the same era, Germany's Schorch, founded in 1882, brought its world-class custom engineering expertise to the group. Schorch heavy-duty drives are widely specified globally for demanding chemical plants, pipelines, marine engineering, and urban tunneling projects.
For vibration drives, OLI is a leading name globally. In 1999, Wolong established a partnership with OLI, integrating their specialized high-frequency mechanical vibration motors and Ex-proof sensor technology into the broader industrial lineup.
In 2015, China's largest national base for explosion-proof motor research, Nanyang Explosion-Proof Group (CNE), officially integrated into the Wolong Group. This integration consolidated our domestic leadership in flameproof motor design and manufacturing, supporting key national oil, gas, chemical, coal mining, and nuclear power projects.
In 2018, Wolong acquired the commercial and industrial motor division of General Electric (GE). This acquisition integrated GE's engineering heritage, standard NEMA-compliant motor technologies, and North American distribution network into the Group's portfolio.
This transaction has enhanced our capability to supply heavy industries like steel mills, water treatment projects, cement processing, and material transport operations with highly reliable rotating machinery.
A deep breakdown of the components that ensure long-term durability and efficiency in demanding environments.
Wolong maintains major motor and drive-control research and development centers in China, Europe, and Japan. Our central Shanghai institute focuses on next-generation efficiency technologies, with current products meeting and exceeding international efficiency standards.
By leveraging brand lineages including Brook Crompton, Morley, Laurence Scott, Schorch, and ATB, we combine century-old design methodologies with modern precision production platforms.
Wolong motors feature robust designs certified to national and international standards. Our explosion-proof products carry global certifications including ATEX, IECEx, and CU-TR, ensuring reliable and safe operation in high-risk environments.
The electric motor's rotor core is built on a high-strength squirrel-cage structure. We utilize advanced centrifugal aluminum casting or precision high-pressure die-casting technology. This process injects molten, high-purity aluminum directly into the slots of the laminated steel rotor core, creating a unified structure of rotor bars, end rings, and integrated cooling blades.
For high-capacity, high-torque applications, we employ hand-inserted, oxygen-free copper bar rotors. Copper bars are mechanically secured and joined to copper end rings using high-frequency induction brazing processes. A protective retaining ring design prevents high-speed copper bar displacement under centrifugal force, ensuring stable operation at high speeds.
The motor's stator core is wound using high-purity, double-insulated copper wire. High-grade polyester film, reinforced glass cloth, and high-content mica tapes form a robust phase-to-phase and ground insulation system.
Every stator assembly undergoes our computerized Vacuum Pressure Impregnation (VPI) process. Under deep vacuum, the air and moisture within the windings are evacuated before solventless polyester/epoxy resin is introduced under high pressure. The resin penetrates deeply into the microscopic voids of the slot liner and coils, which is then thermally cured in a curing oven. This creates a solid winding structure with high mechanical strength, excellent moisture resistance, and high thermal conductivity.
The structural frame of the motor is designed using digital multi-physics simulation platforms, optimizing electromagnetic, thermal, and structural performance. Built from high-tensile cast iron or heavy-welded structural steel, our motor frames are designed with robust structural margins.
This high rigidity minimizes structural vibration and resonant amplification across the motor's operating range. Deep external cooling fins increase the effective heat-dissipating surface area, reducing localized hot spots.
The low-noise ventilation system consists of an aerodynamic fan cover body, an internal air guide cylinder, high-durability debris screens, and integrated acoustic dampeners. The optimized side air-inlet path helps maintain airflow efficiency even when obstacles are located close to the motor's non-drive end.
By reducing air turbulence and energy losses, the design lowers the overall noise level of the motor during operation. Integrated sound-absorbing liners help reduce high-frequency air shear noise, ensuring compliance with strict environmental noise regulations. The fan cover meets protection rating standards (minimum IP22), preventing direct contact with the rotating fan blades.
How our integrated manufacturing network maintains reliability, quality, and cost stability.
Global supply chain disruption represents a major operational risk for heavy-duty industrial projects. When standard or explosion-proof motors fail, every day of downtime can result in significant financial losses. Wolong's centralized manufacturing ecosystem in China addresses these risks by providing robust supply chain resilience and manufacturing efficiency.
From initial copper wire drawing and lamination stamping to automated stator winding, frame casting, and state-of-the-art laboratory testing, we handle all core manufacturing processes in-house. This minimizes reliance on third-party suppliers and improves production consistency.
Our production facilities have secure supply channels for essential electrical steels, high-purity copper, and rare-earth magnetic elements (such as NdFeB). This direct access helps protect against global raw material price spikes and supply shortages.
We integrate advanced manufacturing technologies, including automated stator winding machines, robotic laser cutting, and computerized motor load-testing beds. These systems optimize manufacturing precision while keeping production costs competitive.
By partnering with Shaanxi Nanfang Motor Technology, customers benefit from Wolong's global distribution network. We provide standardized engineering drawings, rapid prototype builds, and structured global logistics routes that deliver heavy-duty machinery when and where it is needed.
Safe, efficient, and certified performance across demanding global environments.
Our explosion-proof motor series, including the YZYKS and YBX5 lines, are designed for the high-safety requirements of refineries, petrochemical processing plants, and pipeline pumping stations. These motors carry ATEX/IECEx certifications, ensuring safe performance in Zone 1 and Zone 2 hazardous gas and vapor atmospheres.
Designed to withstand high vibrations, particulate dust, and mechanical impacts, our specialized flameproof conveyor motors (such as the YBSD and YBSS series) keep longwall mining and bulk material transport systems running reliably.
The YQ series low-voltage marine motors carry type-approval certifications from leading marine classification societies, including DNV. They are designed with salt-spray resistant coatings, high-grade anti-condensation heaters, and corrosion-resistant components for offshore and onboard ship installations.
We supply high-efficiency induction and permanent magnet synchronous motors (WEPM series) for heavy-duty pumps, aeration blowers, and water supply networks, helping municipalities reduce energy consumption and operating costs.
Meeting international quality, environmental safety, and explosion protection regulations.
To support global industrial distribution, the Wolong Group has obtained certifications for major regional and international safety frameworks. These quality guarantees allow engineers and project managers to specify our motors with confidence.
Nemko / ATEX
CSA Group
CE Mark
CCC (China)
SABS (Africa)
TESTSAFE
Our manufacturing bases adhere to the ISO 9001 quality management framework, ensuring strict quality control from raw material inspection through to final assembly and testing.
Our NEMA-compliant motors undergo thorough electrical, vibration, starting-torque, and thermal efficiency testing to meet the specifications of the North American market.
We provide explosion-proof motors designed for hazardous gas, vapor, and combustible dust environments, fully compliant with ATEX directives and the international IECEx standard.
The TESTSAFE certification verifies that our mining-specific motors comply with the safety and operational requirements of the Australian mining and industrial sectors.
The path forward for smart, ultra-efficient rotating equipment.
The future of rotating machines focuses on efficiency, intelligence, and system integration. Our R&D team works closely with leading technical institutions to transition motors from passive, stand-alone components to connected, intelligent drive systems.
Integrating vibration sensors, winding RTDs, and bearing temperature detectors directly into the motor housing. By leveraging real-time data and edge-diagnostic software, operators can transition from schedule-based maintenance to predictive maintenance, helping prevent unplanned downtime.
Moving beyond traditional induction designs, we are expanding our permanent magnet synchronous motor (PMSM) and synchronous reluctance motor (SynRM) ranges. By eliminating rotor-winding current losses, these motors achieve high efficiency under variable-speed and part-load operations.
As part of our commitment to sustainable design, we focus on material recyclability, reduced VOC paint systems, and energy efficiency during manufacturing. Our goal is to minimize environmental impact across the entire product lifecycle, from initial production to final decommissioning.
Expert answers to common engineering, compliance, and application questions.
High-voltage, variable-speed, and specialized marine motors engineered for global deployment.
NANFANG
