Sweden stands at the forefront of the global green transition. Anchored by the ambitious goal to achieve carbon neutrality by 2045, Swedish heavy industries—ranging from the mining complexes in Kiruna and Gällivare to the chemical hubs along the western coast, and the expansive pulp and paper mills in the central provinces—are undergoes a massive electrification paradigm. This transition places unprecedented demands on rotating machinery, requiring high-voltage (HV) and low-voltage (LV) electric motors to achieve the highest energy efficiency classes (IE4 and IE5) while operating reliably under harsh sub-zero temperatures and aggressive Nordic environmental conditions.
Shaanxi Nanfang Motor Technology Co., Ltd serves as the authorized distributor of Wolong Electric Drive Group Co., Ltd (listed on the Shanghai Stock Exchange, code SH600580). Founded in 1984, Wolong has grown through strategic acquisitions of the world’s most respected century-old electric drive brands. Today, with 39 manufacturing factories and 3 global R&D centers, Wolong delivers unparalleled engineering competence, combining China’s optimized manufacturing supply chain with European specialized technology.
By bringing together pioneers from Europe and North America, Wolong has integrated a comprehensive technology suite. These brands represent decades of specific expertise, catering to niche and extreme applications across Sweden's maritime, mining, and power sectors:
One of Europe's premier motor manufacturers, comprising industry specialists like Morley (heavy-duty coal mining drives) and Laurence Scott (low-starting-current naval and nuclear plant machinery).
A venerable brand with over a century of mastery in energy-efficient motor designs. Known for the premium "W" and "10" series low-voltage and medium-voltage AC motors.
Established in 1882, Schorch sets the standard for high-output, customized driving systems used in oil & gas, tunnel ventilation, and heavy petrochemical refinery projects worldwide.
The global leader in vibration motors (MVE) and Ex-certified vibration sensors, providing precise bulk material handling solution across mining and cement works.
China's largest explosion-proof motor research and manufacturing base, providing robust Ex d, Ex e, and Ex p safe drives for global hazardous zones.
Acquired to bring advanced, heavy-duty American industrial design and materials processing motor systems under the unified Wolong technology umbrella.
Our motors are not merely assembled; they are simulated, verified, and crafted to withstand extreme stresses. Here is how we build the core components of our series motors:
Our rotors feature advanced squirrel cage structures. Standard models utilize centrifugal or die-cast pure aluminum. For high-power and continuous heavy-load operations, copper bar rotors with reliable welding and protective end-rings are used to ensure starting torque stability and structural durability.
Stator coils are wrapped with high-quality polyester film and reinforced glass cloth mica tapes. The entire stator undergoes a comprehensive Vacuum Pressure Impregnation (VPI) cycle, curing into a dense, moisture-proof, and thermally stable Class H insulation system.
We leverage multi-physics thermal and fluid simulation platforms to design motor frames. Cast from high-grade structural iron or fabricated steel, our frames feature ample resonance margins, ensuring low vibration levels and high heat dissipation.
Comprising a custom air guide cylinder, silencer plates, and sound-absorbing composite materials, our IP22-IP55 fan covers optimize cooling airflow while dampening high-frequency air movement noise, protecting the working environment.
To cross international trade barriers and meet Sweden’s strict regulatory framework, Wolong motors comply with all major international standards:
Nemko / ATEX
CSA
CE
CCC
SABS
TESTSAFE
For Swedish heavy industrial complexes requiring extreme high-voltage solutions, VFD optimization, or state-of-the-art permanent magnet technology, we supply the following certified drives:
In sub-level cave mines like Kiruna, safety and high runtime stability are critical. Our flameproof 3-phase induction motors (YBS and TBVF series) run on heavy-duty underground conveyors and crushers. High overload capacities, robust cast iron frames, and ATEX/IECEx certifications protect personnel while ensuring throughput.
For vessels traversing the Baltic and North Sea, the YQ series and Wolong’s 40kW outboard motors provide dependable power. Supported by DNV Type Approvals, these marine electric drives are engineered to withstand salty, humid air, preventing galvanic corrosion through tailored surface coatings.
Operating 24/7, Swedish paper mills require highly efficient low-voltage motors (WE3 and YE4 series) that minimize parasitic electrical losses. By replacing older motors with premium IE4/IE5 equivalents, mills reduce electricity bills and lower carbon load, supporting national corporate sustainability reporting.
All explosion-proof motors (such as the YBX4 and YBS series) manufactured by Wolong undergo rigorous type testing at certified testing institutions, including Nemko, CSA, and China's national laboratories (CNE). Certifications are fully registered and accessible, allowing direct integration into European Zone 1 and Zone 2 explosive environments in compliance with the ATEX Directive 2014/34/EU.
Yes. Because Wolong owns ATB, Brook Crompton, and Schorch, all mechanical and electrical dimensions are designed in absolute accordance with IEC standards. Standard mounting configurations, shaft sizes, and center heights make Wolong motors drop-in replacements for existing installations in Swedish plants.
Our variable frequency motors (such as the YVF and TBVF series) are optimized for VSD control. Stator windings are insulated with VPI class H structures and reinforced turns to prevent degradation caused by high-frequency voltage spikes (dV/dt). Insulated bearings or grounding brushes are also available to eliminate bearing currents in high-power applications.
The YQ series and marine-grade motors feature specialty C4 or C5-M high-durability epoxy paint systems. Internal windings undergo double impregnation and are protected by high-grade IP56 or IP66 seals, heavy-duty stainless steel shaft sleeves, and brass cable glands, satisfying DNV marine safety requirements.
For large-scale, high-voltage motors (like YKS or YKK series), engineering verification and manufacturing take approximately 8 to 12 weeks. Transport via the China-Europe rail link directly into Swedish rail terminals takes 18 to 22 days, while standard sea freight to Gothenburg takes around 35 days, with door-to-door customs clearance handled by our logistics partners.
NANFANG
