Engineered to operate reliably in Zone 1, Zone 2, and dust environments under strict global certifications.
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 (SH600580) in 2002. For over three decades, Wolong has expanded its footprint to establish 3 global manufacturing bases, 39 advanced factories, and 3 global R&D centers.
Wolong's global brand strategy and technological leadership are built on acquiring and integrating the world's most prestigious electric motor manufacturers. This unique cooperative model brings together cutting-edge engineering from both Europe and Asia, positioning Wolong as an unrivaled leader in the industrial explosion-proof market.
By integrating premier historical motor manufacturers worldwide, Wolong delivers unparalleled engineering synergy.
Acquired in 2011, Austria's ATB Group brings over a century of European manufacturing heritage. This includes Morley's 130-year legacy in underground mining, establishing a global benchmark for safety and high-torque reliability in gaseous coal environments.
Laurence Scott pioneered low-starting-current naval and nuclear applications. Schorch (acquired 2011, founded 1882) is a pillar of standard-setting German motor construction for hazardous oil, gas, and power generation systems globally.
As a century-old veteran in electrical drive systems, Brook Crompton leads the industry in low-voltage and medium-voltage hazardous area solutions. Their "W" series offers high energy efficiency (IE3/IE4) combined with robust safety profiles.
Integrating GE Industrial Motors in 2018 and Nanyang Explosion-proof Group (CNE) in 2015 consolidated Wolong as a major supplier of military, nuclear power, and heavy chemical industrial grade explosion-proof machines.
A breakdown of the flameproof architecture that contains internal explosions and prevents external ignition.
Features squirrel cage dynamics with centrifugal pure aluminum casting or precise copper bar welding for high starting torque and thermal tolerance.
Engineered using high-mica content tape followed by Vacuum Pressure Impregnation (VPI), ensuring structural rigidity and moisture resistance.
Fully simulated digital structural platforms ensure redundant thickness, heat dissipation channels, and containment of potential internal ignitions.
Compact design with side-inlet paths to reduce fluid resistance. Rated IP22 (or customizable to IP55+) with integrated sound absorption pads.
Overcoming global trade barriers with rigorous testing and certifications compliant with international safety agencies.
Nemko / ATEX
CSA Standard
CE Directives
CCC Ex-proof
SABS Standard
TESTSAFE Mining
Quality assurance is backed by rigorous ISO 9001 processes, establishing a baseline for mechanical verification, explosion-proof design conformity, and traceability of core castings.
We conduct comprehensive NEMA-standard tests including efficiency testing, insulation resistance, starting current & locked rotor torque tests, and complete mechanical vibration checks for industrial applications in the US and Canada.
Fully qualified for ATEX (EU Directive 2014/34/EU) and IECEx (IEC 60079 series) standards. This allows our Ex db flameproof motors to be deployed in environments with flammable gases, vapors, or mists.
As a specialized testing protocol in Australia and the southern hemisphere, TESTSAFE alignment establishes our mining machinery motors as high-specification, heavy-duty solutions for the toughest coal face operations globally.
The convergence of modern manufacturing infrastructure, materials supply, and global technical heritage.
From copper wire drawing, electromagnetic core punching, heavy cast-iron casting to final VPI curing and flame-path precision milling, our fully integrated factories in China streamline lead times and control physical quality at every step.
Proximity to major steel refineries ensures immediate access to high-grade, cold-rolled non-oriented silicon steel sheets. This secures high electromagnetic efficiency (IE3, IE4, and IE5 standards) and low thermal generation.
China's manufacturing scale allows us to provide cost-effective flameproof motors. We accommodate specific requirements, such as special mounting positions, specialized shaft extensions, high-voltage requirements, and complex cooling systems.
Engineering an explosion-proof drive requires more than just shipping a motor. It demands direct compliance integration, local site support, and comprehensive field validation. Through our network of 3 global bases and localized engineering services, Shaanxi Nanfang Motor Technology Co., Ltd bridges the gap between China factory production and regional compliance standards.
Whether meeting the standards of Australian coal mining (TESTSAFE), Canadian standards (CSA), or European petrochemical guidelines (ATEX), we supply documented calculations for starting currents, thermal characteristics, and compatibility with variable frequency drives (VFDs).
Providing high-safety mechanical drives across various critical industrial sectors.
Operating in Zone 1 / Zone 2 refineries. Perfect for high-pressure gas compressors, hydrocarbon transport pumps, and chemical reactor mixers.
Providing heavy-duty, explosion-proof torque for underground coal face conveyors, shearers, gas drainage pumps, and main ventilation fans.
Ex tD and dual-certified Ex db / Ex tb motors designed to prevent dust explosions in grain storage silos, sugar mills, and milling systems.
Corrosion-resistant marine paints, special sealing classes, and anti-condensation designs suited for drilling platforms and vessels.
How digitalization and efficiency mandates are redefining the hazardous area motor sector.
Energy-saving regulations are pushing industrial plants to transition to premium efficiency classes. Wolong's permanent magnet flameproof synchronous motors are designed to reduce carbon emissions and operating costs.
Explosion-proof OLI vibration sensors integrate directly with industrial internet platforms. This allows operators to monitor bearings, balance, and thermal performance in real time without entering hazardous zones.
Advancements in variable frequency technology allow explosion-proof motors to operate over wide speed ranges. This matches the flow demand of pumps and fans while protecting the motor from thermal overload.
Engineering answers to common technical queries from design teams, procurement agents, and site operators.
Direct supply from manufacturing centers. Select a model to view parameters, drawings, and certification options.
NANFANG
