Cutting-edge industrial machinery configured for critical infrastructure projects, refining sectors, and chemical environments in Sri Lanka and regional export corridors.
As Sri Lanka continues to position itself as a maritime powerhouse and commercial gateway in the Indian Ocean, industrial corridors such as the Hambantota Port Zone, the Trincomalee Industrial Hub, and key zones around Colombo are scaling their chemical processing, bulk-liquids storage, and heavy-manufacturing facilities. Modernizations within these sectors demand specialized explosion-proof hardware that mitigates the risk of igniting airborne dust or flammable gases.
The deployment of high-voltage explosion-proof machinery is critical in Sri Lanka's storage installations (such as the Kolonnawa and Trincomalee oil tank farms), municipal water infrastructure, chemical processing plants, and port loading systems. Supplying high-quality, international certified motor units ensures compliance with international engineering mandates (IECEx, ATEX) and supports Sri Lanka’s transition toward global E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) operational standards.
Industrial environments require distinct protection strategies depending on the presence of flammable materials:
Authorized global channel distributor of WOLONG Electric Drive Group Co., Ltd., delivering premium electrical powertrains and control technologies to international markets.
Founded in 1984 and listed on the Shanghai Stock Exchange in 2002 (SH600580), WOLONG is a globally recognized manufacturer of industrial motors and drive systems. Through strategic international acquisitions, WOLONG owns some of the most celebrated electrical engineering brands in the world, including ATB, Brook Crompton, Morley, Laurence Scott, Schorch, Nanyang Explosion Group, OLI, and the commercial industrial division of General Electric (GE). Shaanxi Nanfang Motor brings this global powerhouse direct to Sri Lankan heavy industries, EPC contractors, and public works sectors.
Launched in Shangyu, China. Over three decades, WOLONG grew rapidly by focusing on design precision, technological leadership, and scaling a robust supply chain to support worldwide industrial infrastructure.
WOLONG acquired 97.94% of Austria’s ATB Group, integrating legendary European brands like Morley (underground mining motors with 130 years of history) and Laurence Scott (historic supplier of low starting-current systems for British nuclear facilities and naval vessels).
Integration of Germany's Schorch (founded 1882), famed for highly custom drives for oil/gas pipelines, and the acquisition of shares in Brook Crompton, globally renowned innovators in high-efficiency low-voltage and high-voltage AC motors.
China’s premier explosion-proof research and development base, Nanyang Explosion-proof Group (CNE), officially joined WOLONG in 2015. In 2018, the commercial industrial motor business of General Electric (GE) was acquired, bolstering global R&D and supply capacities.
A deep look inside our high-voltage explosion-proof motors, showcasing design philosophies engineered to withstand high temperatures, pressure build-ups, and severe environments.
WOLONG’s rotors are constructed utilizing either centrifugal aluminum casting or precision die-casting techniques. This integrates the rotor bars and end rings into a solid structure that enhances mechanical strength and torque properties. For ultra-high-capacity applications, we implement a copper bar rotor design utilizing specialized copper welding and dynamic balance techniques. High-speed models are fitted with high-strength retaining rings to prevent distortion under high centrifugal load.
Our stator coils utilize premium polyester-film-backed glass cloth and high-mica content tapes. Following winding, the assemblies undergo Vacuum Pressure Impregnation (VPI) to form a void-free structure. This system provides high electrical insulation, thermal stability, resistance to environmental moisture, and mechanical protection against electromagnetic stresses during high-voltage startup cycles.
The motor frames are designed using multi-physics structural and fluid simulation platforms to optimize heat dissipation and minimize vibration. Built with high-tensile cast iron or welded steel plates, the frames offer high structural rigidity. The design isolates natural vibration frequencies to maintain mechanical alignment and low-vibration operation under load spikes.
The ventilation arrangement features a custom fan cover, an air director, protective screens, and acoustic silencer elements. The side-entry air intake minimizes obstruction issues behind the motor, reducing aerodynamic drag and noise generation. The integration of high-performance sound-absorbing lining materials satisfies strict industrial noise standards while retaining an IP22 safety barrier rating.
WOLONG designs and manufactures explosion-proof systems configured to address the operational and safety demands of modern processing industries.
We supply a broad range of international certifications—including ATEX, IECEx, CSA, Nemko, TESTSAFE, SABS, and CCC. These approvals facilitate smooth customs clearance and regulatory compliance for project developers globally.
WOLONG is committed to reducing industrial operating expenses. We offer high-efficiency units matching IE3, IE4, and IE5 energy grades, as well as permanent magnet designs that lower electrical consumption and carbon footprints.
Our expansive product portfolio spans low-voltage, medium-voltage, and high-voltage AC units. This configuration capacity allows us to deliver solutions customized for varying frame dimensions, voltage levels, and hazard classifications.
By coordinating our design centers across Europe (Austria and Germany), Japan, and China, WOLONG is able to develop advanced electrical machines. In Sri Lanka, Shaanxi Nanfang Motor complements this technical base with local sales support, customs clearance management, and engineering advisory services.
Whether you are designing a processing plant in Hambantota or planning a municipal pump station upgrade in Colombo, our application engineers help select, configure, and install explosion-proof drive solutions to ensure high uptime and safety.
WOLONG high-voltage motors undergo comprehensive performance and compliance testing to meet the rigorous standards of leading certification bodies.
To ensure our high-voltage units operate reliably in hazardous areas, they are designed and tested to meet international standards:
WOLONG provides support services to simplify project integration and reduce downtime for industrial operations in Sri Lanka.
Our team provides tailored configurations to meet specific requirements for new and retrofit projects in Sri Lanka:
We coordinate delivery and commissioning through our established logistics networks to ensure smooth project execution:
Expert answers addressing the selection, installation, and maintenance of high-voltage explosion-proof motors in challenging industrial environments.
Explore our full line of WOLONG and ATB industrial motors configured for hazardous locations, pumping systems, and power grid optimization projects in Sri Lanka.
Consult with our engineers to configure high-voltage powertrain systems built to your project's specific mechanical and safety parameters.
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