Direct supply from Wolong Nanyang ATB's state-of-the-art manufacturing facilities. Fully optimized for high humidity and tropical industrial layouts.
Bangladesh is currently undergoing a massive industrial transformation. The expansion of downstream petrochemical processing, LNG regasification terminals in Maheshkhali, large-scale chemical fertilizer plants like the Ghorashal Polash Urea Fertilizer Project (GPUFP), and deepwater terminal activities require heavy machinery that can operate safely in hazardous gas-rich atmospheres.
In these hazardous areas, ordinary electric motors pose severe ignition risks due to potential electrical arcing, sparking, or surface overheating. High-voltage (6kV, 10kV, 11kV) systems are necessary to drive large compressors, process pumps, and massive ventilation fans. However, matching these electrical demands with strict explosion safety standards is an engineering challenge that requires deep domain expertise.
Furthermore, Bangladesh’s tropical monsoonal climate presents severe operating conditions: ambient temperatures reaching 45°C, relative humidity climbing to 95%, and coastal air heavily laden with corrosive salt. Industrial plants require heavy-duty electric motors built to withstand these conditions without compromising their explosion protection ratings.
Authorized global supply partner leveraging the legacy and assets of world-renowned industrial motor leaders.
Shaanxi Nanfang Motor Technology Co., Ltd. is the authorized distributor of Wolong Electric Drive Group Co., Ltd. founded in 1984 and listed on the Shanghai Stock Exchange in 2002 (SH600580). Over the decades, Wolong has expanded to 3 global manufacturing bases, 39 factories, and 3 state-of-the-art R&D centers. Driven by a global brand integration strategy, Wolong has acquired several century-old brands, transforming itself into a powerhouse for high-voltage explosion-proof driving systems.
Acquired by Wolong in 2011, ATB is one of the three major European motor manufacturers. It includes the highly respected Morley mining motor division and Laurence Scott, renowned for low-starting-current designs.
Schorch (established 1882) sets the European standard for high-power customized drives. Combined with Brook Crompton's energy-efficient designs, they provide reliable performance in harsh chemical and marine environments.
In 2018, General Electric's commercial and industrial motor division joined Wolong. This acquisition brought deep experience in supplying heavy industries like oil & gas, refining, and mining across the globe.
We supply diverse protection designs to match the requirements of specific hazardous zones in Bangladesh.
Designed to contain any internal explosion without allowing the flame to propagate to the surrounding gas atmosphere. Ideal for high-risk Zone 1 applications in petroleum refining and gas distribution facilities throughout Bangladesh.
Maintains an internal overpressure of inert gas or clean air relative to the surrounding atmosphere. This prevents flammable gases from entering the motor enclosure, making it a reliable solution for heavy-duty synchronous machinery.
Focuses on preventing sparks, arcs, or dangerous hot spots from forming on internal or external parts of the motor during normal operation. A highly efficient and cost-effective solution for Zone 2 applications.
While European EPC contractors working on infrastructure projects in Dhaka, Chittagong, or Payra often specify ATEX directives (94/9/EC), international financing groups and local regulatory agencies increasingly rely on the globally unified IECEx system. All Wolong high-voltage explosion-proof motors supplied by Shaanxi Nanfang Motor carry dual certifications, ensuring compliance with international project specifications and local regulatory frameworks.
Consult our standards compliance team →A detailed breakdown of the internal components engineered to deliver reliable performance in challenging environments.
The rotor features a squirrel cage design. Cast aluminum rotors are produced using centrifugal or die-casting techniques, creating a single-piece construction that integrates the rotor bars and end rings. This design ensures structural integrity, reliability, and excellent starting torque characteristics.
For larger capacity motors, copper bar rotors are used. These benefit from secure bar fastening and precise end-ring welding procedures. High-speed motors also utilize a protective ring design to ensure the reliable operation of the copper bar rotor under continuous load.
The stator coil is crafted using polyester film reinforced with glass cloth and high-mica content tape. After winding, the stator undergoes the VPI (Vacuum Pressure Impregnation) process, transforming it into a solid, moisture-resistant insulation unit.
The winding and insulation system is designed to provide high electrical performance, mechanical strength, moisture resistance, and thermal stability, allowing the motor to run cool and maintain its lifespan in humid climates.
The motor frame is designed using digital simulations for structural and fluid multi-physics fields. Built from high-strength cast iron, the frame provides structural redundancy, efficient heat dissipation, and vibration isolation margins.
This construction is engineered to endure mechanical shocks, maintain low vibration levels, and ensure minimal temperature rise during continuous operation in high-ambient-temperature environments.
The fan cover system comprises a fan cover body, air guide cylinder, protective window, and silencer plate. The side-entry air inlet optimizes ventilation and reduces noise generated by air turbulence.
Incorporating sound-absorbing materials, the system keeps overall motor noise low. The fan cover is rated IP22, preventing accidental contact with the fan blades and protecting the cooling system from larger airborne debris.
Large industrial projects depend on timely equipment delivery. Delaying the installation of a high-voltage compressor motor can halt a project, costing operators significant downtime. As Wolong's authorized distributor, Shaanxi Nanfang Motor Technology Co., Ltd. has optimized the supply chain for projects in Bangladesh.
By leveraging the trade routes between China and Bangladesh, we coordinate logistics from our manufacturing hubs in Henan (Nanyang) and Zhejiang directly to Chittagong Port or Mongla Port. Our dedicated logistics team manages import/export compliance, customs clearance, and local transportation to your installation site.
We work closely with major international EPC firms and local subcontractors, providing transparent documentation, export certificates of origin, and comprehensive technical documentation to ensure smooth project execution.
We align motor electrical parameters, shaft dimensions, and protection types with your system requirements before production starts.
Every high-voltage motor undergoes rigorous routine and type testing at our facilities, including vibration analysis, insulation tests, and temperature-rise evaluations. Video witnessing is available for clients in Bangladesh.
Our engineers assist with on-site alignment, vibration testing, and initial start-up verification to ensure the system integrates correctly with your plant infrastructure.
Our driving systems are certified by major international testing authorities, ensuring safe operation in hazardous environments.
Nemko / ATEX
CSA Standard
CE Certification
CC Quality
SABS Approved
TESTSAFE Standard
Wolong adheres to a comprehensive quality policy across all production stages, allowing our products to meet the requirements of various global regions:
Technical guidance for plant operators, EPC consultants, and procurement managers.
You need to specify: 1) System voltage (typically 6kV, 10kV, or 11kV, 50Hz); 2) Hazardous zone classification (Zone 1 / Zone 2, Group IIA/IIB/IIC, Temperature Class T3/T4); 3) Environmental protection rating (IP55 or IP56 is recommended due to local monsoon conditions); and 4) Space constraints and structural options (e.g., foot-mounted IM B3 or flange-mounted designs).
High relative humidity can lead to moisture absorption in the stator windings, reducing insulation resistance. We address this by using Vacuum Pressure Impregnation (VPI) with high-grade epoxy-resin and mica tapes, creating a moisture-resistant barrier. Additionally, integrated anti-condensation heaters are installed to keep internal temperatures above the dew point when the motor is idle.
Yes. Motors like our YBBPX series are designed specifically for VFD operation. They feature reinforced insulation to handle voltage peaks caused by inverter switching, and can be equipped with insulated bearings on the non-drive end to prevent damage from shaft currents.
Every motor is prepared for export using heavy-duty wooden packaging, vacuum-sealed barrier film, and desiccant packs. Shaft locks are installed to prevent bearing damage during transit, and bright indicator paint is applied to the key joints for quality verification upon arrival.
We offer a standard 12-month warranty from commissioning or 18 months from shipment, with optional extensions. In collaboration with local engineering teams, Shaanxi Nanfang Motor provides technical support, spare parts distribution, and field maintenance services to keep your systems running smoothly.
Engineered for high performance, efficiency, and compliance with major global safety standards.
Get in touch with our engineering team for customized specifications, parameter sheets, price quotes, and delivery timelines for your projects in Bangladesh.
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