ATEX & CE certified explosion-proof motors tailored specifically to the machinery, chemical plants, and oil/gas distribution channels in the Czech Republic.
The Czech Republic stands as one of the most industrialized nations in the European Union, with heavy sectors such as automotive engineering, chemical refining, metallurgy, and machinery manufacturing forming the backbone of the national GDP. From chemical complexes in Litvínov and Kralupy nad Vltavou to heavy engineering hubs in Plzeň, Brno, and Ostrava, industrial plants require robust, reliable, and energy-efficient motor systems that can operate safely in environments prone to volatile gases and combustible dusts.
As factories align with European Union environmental standards and undergo digital transformation under Industry 4.0, the selection of AC low-voltage explosion-proof motors has transitioned from basic functional specifications to advanced considerations of efficiency class (IE3, IE4, and IE5), integration of variable frequency drives (VFD) for process control, and long-term mechanical reliability. Standard safety regulations under the ATEX directives require motors installed in hazardous zones (Zone 1, Zone 2, Zone 21, and Zone 22) to guarantee absolute isolation of electrical arcs and heat signatures from explosive external atmospheres.
Operating as a key partner for Central European OEMs and maintenance managers, our mission is to supply highly engineered, globally validated Wolong explosion-proof motors that minimize downtime, comply with stringent European directives, and reduce total cost of ownership (TCO) through optimized electrical designs.
Shaanxi Nanfang Motor Technology Co., Ltd. is the authorized global distributor of Wolong. Founded in 1984, Wolong Electric Drive Group Co., Ltd. was successfully listed on the Shanghai Stock Exchange in 2002 (code SH600580). Over more than three decades of intensive growth, Wolong has established 3 major manufacturing bases, 39 state-of-the-art factories, and 3 advanced global R&D centers.
Wolong focuses on the precision design and manufacturing of motors and control systems. Focused on a global brand strategy, Wolong has integrated a roster of world-renowned century-old motor brands. This includes Brook Crompton, Morley, Laurence Scott, Schorch, ATB, and CNE (Nanyang Explosion-Proof), consolidating top-tier technical expertise in industrial explosion containment, low vibration, and thermodynamic efficiency.
Every motor features optimized metallurgy, insulation class, and thermal dynamics to ensure safety in hazardous environments.
Coils are insulated with polyester film and reinforced glass cloth with high-mica tapes. Following rigorous Vacuum Pressure Impregnation (VPI), the finished stator winding provides exceptional dielectric strength, moisture repulsion, and thermal stability in chemically corrosive zones.
Manufactured using centrifugal die-casting techniques for a unified rotor bar and end ring construction. Larger motors feature copper bar designs with reliable end-ring welding and protective rings for high-speed dynamic balance and low starting currents.
Low-noise fan covers combine structural compactness with sound-absorbing materials to damp high-frequency windage noise. The side-entry air intake reduces turbulence, keeping operational decibels low while maintaining an IP22 barrier against internal touch.
The motor frame design utilizes high-strength cast iron and digital simulation platforms. By simulating static structural stress and dynamic heat dissipation pathways simultaneously, we achieve structural redundancy that allows the frame to absorb mechanical shock. This structural design isolates resonant vibration frequencies, reducing thermal stress on internal bearings and winding insulation.
Wolong has integrated historic brands to build a comprehensive technological foundation in motor manufacturing.
Wolong acquired 97.94% of the Austrian ATB Group, one of the three major European motor manufacturers. This acquisition integrated the Morley brand (underground coal mining motors with a 130-year history of reliability) and Laurence Scott (well-known for low starting current designs and nuclear power plant auxiliary systems).
Schorch (founded in 1882) joined Wolong. Schorch is a standard-setter for high-efficiency heavy-duty motors, serving global projects in oil and gas extraction, waste management, steel processing, marine engineering, and tunnel construction.
Brook Crompton brought over a century of motor design experience, specializing in energy-efficient low and medium voltage AC motors. In 2015, CNE (Nanyang Explosion-Proof Group) joined the Wolong Group, consolidating one of the largest explosion-proof research and manufacturing facilities into a single collaborative entity.
Wolong acquired GE's commercial and industrial motor division, integrating its high-specification design parameters, materials science resources, and extensive North American service capabilities.
Providing certification support to meet safety and environmental compliance requirements.
ATEX Directive
CSA Standard
CE Conformity
IECEx Certified
ISO 9001 Quality
TESTSAFE Coal Mine
ISO 9001: Quality management protocols are integrated into every stage of fabrication, from coil insulation layering to mechanical runout tolerances.
NEMA Standard: For facilities exporting machinery to global markets, our UL-listed and CSA-certified NEMA motors meet structural and electrical interface standards.
IECEx & ATEX Standard: High & low-voltage explosion-proof motors are certified for gas (Zone 1/2) and dust (Zone 21/22) atmospheres, complying with ATEX Directive 2014/34/EU.
TESTSAFE Standard: Facilitates compliance and access to international markets for specialized mining drives and coal cutting equipment.
Providing electric drives for the unique operational environments of Czech industries.
Common technical and regulatory questions regarding low-voltage explosion-proof motors.
Explore our complete range of certified motor models built to handle different industrial requirements.
Consult with our engineering support team for certified motor drawings, technical proposals, and price quotations.
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