Engineered for extreme reliability, explosive atmosphere protection, and high-efficiency operations.
Shaanxi Nanfang Motor Technology Co., Ltd. is the authorized global distributor of Wolong Electric Drive Group Co., Ltd. (founded in 1984, listed on the Shanghai Stock Exchange in 2002 under code SH600580). Over the course of nearly four decades, Wolong has solidified its footprint as a world-leading motor manufacturing giant, operating 3 manufacturing bases, 39 advanced factories, and 3 global R&D centers.
Through key strategic acquisitions and joint ventures, Wolong has assembled a world-class industrial alliance, including century-old premium brands such as Austrian ATB Group, Brook Crompton, Morley, Laurence Scott, Schorch, GE Commercial & Industrial Motors, and OLI Vibration Motors. This synergistic integration gives Wolong an unmatched R&D edge in high-stress, safety-critical explosion-proof applications, ensuring our clients receive top-tier, compliant, and highly robust electrical engineering systems.
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Pioneering smart safety, dynamic insulation structural longevity, and carbon-neutral efficiency.
Integration of real-time Ex vibration sensors and thermal couplers to run edge-level AI algorithms, predicting bearing wear and coil anomalies before failures occur.
Pushing efficiency limits past standard asynchronous motors. Our WEPM and TBVF series leverage rare-earth permanent magnet technology for IE5 Ultra-Premium energy ratings.
Utilizing high-stress structural simulations and multi-physics field testing to develop motor frames capable of weathering mechanical shock cycles exceeding 25G load thresholds.
Engineered driving configurations tailored for processing applications across hostile operating zones.
Continuous operations in dusty underground coal mines call for extreme robustness. Wolong's Morley brand mine motors supply the rugged torque needed for heavy rock crushers, vibration screens, and steep-angle conveyor belts.
Gaseous environments (Zone 1 and Zone 2) demand zero-spark assurance. Our flameproof (Ex d) and positive pressure (Ex p) models (YZYKK, YZYKS series) isolate ignition risks from gas vapors during refining and transportation stages.
Salty, highly corrosive, and wet conditions present a constant threat. With specialized marine-grade coatings, DNV GL and marine type-approvals, our YQ series motors provide outstanding resistance to rust and galvanic wear.
How our components achieve structural integrity, efficiency, and explosion safety.
Featuring a rugged squirrel cage design. Cast aluminum rotors are produced using advanced centrifugal casting or high-pressure die-casting, forming a unified, bubble-free block. For heavy industrial units, custom copper-bar rotors utilize precise dynamic balancing to ensure operating stability and low vibration levels.
Our stator coils use high-grade polyester film reinforced with double-layered glass cloth and high-mica-content tapes. Using standard Vacuum Pressure Impregnation (VPI), the coils form a solid, moisture-sealed insulation system with excellent thermal conduction and dielectric properties.
Engineered using multi-physics simulation platforms, the heavy-duty cast iron or steel frame features high structural redundancy. This custom housing isolates operational resonance, promotes optimal surface area thermal dissipation, and protects the internal components from massive impact loads.
Consisting of an air guide cylinder, silencer plates, and a protective grill, the fan hood reduces air turbulences to lower overall operating noise. Designed with an IP22 rating, it blocks external particulate ingress while directing high-velocity cooling air along the motor frame.
Inspecting our component manufacturing, assembly lines, and testing procedures.
Stator Coil Assembly
Frame Casting
Fan Hood Assembly
Vibration Testing Room
Breaking trade barriers and verifying product safety for key regions worldwide.
Operating in petrochemical plants, deep mines, and marine tankers exposes electrical equipment to explosive atmospheres. To ensure safe, spark-free operations, our motors undergo rigorous testing to comply with international explosion-proof standards, including ATEX, IECEx, UL, CSA, SABS, and TESTSAFE.
ATEX / Nemko
CSA Approval
CE Certification
CCC Mark
SABS Approved
TESTSAFE
Leveraging smart manufacturing, automated lines, and deep vertical integration.
By blending local manufacturing agility with overseas technical design from acquired brands like ATB and Schorch, Wolong’s production plants represent a true Factory 4.0 ecosystem. Highly automated CNC machining, robotic coil winders, and closed-loop quality monitoring minimize human errors during critical assembly phases.
Our strong vertical integration covers laminations, copper drawing, castings, and precision testing. This setup allows Shaanxi Nanfang Motor Technology to optimize production timelines, control materials costs, and guarantee supply chain continuity, keeping deliveries stable even during global shipping disruptions.
Key technical parameters for choosing the right explosion-proof vibration motor.
Confirm the zone classification of your site (Zone 1, Zone 2 for gas hazards; Zone 21, Zone 22 for dust). Matching these requirements prevents selecting over-engineered models and ensures full compliance with local workplace safety regulations.
Adjustable eccentric blocks allow users to modify force outputs. Calculate your required centifrugal force (kN) according to the hopper's weight or screen's mass to prevent premature fatigue of the motor shaft.
Explosion-proof ratings restrict the motor's maximum surface temperature. Ensure your motor's temperature class (e.g., T4, T5, or T6) complies with the autoignition point of the surrounding gases or dust.
Resolving common engineering and sourcing questions about explosion-proof vibration motors.
A: Flameproof (Ex d) motors feature a heavy-duty enclosure designed to contain internal explosions and prevent spark propagation. Increased safety (Ex e) models do not contain internal explosions; instead, they focus on preventive measures, using robust insulation and tight mechanical tolerances to prevent sparks or dangerous temperatures from occurring in the first place.
A: You can adjust the centrifugal force by changing the angle between the adjustable and fixed eccentric blocks on both ends of the motor shaft. Realigning these blocks changes the dynamic imbalance, altering the force output from 0% up to 100% of the motor's rated capacity.
A: We use high-precision cylindrical roller bearings or heavy-duty spherical roller bearings from premium brands like SKF or FAG. These bearings are designed to handle high radial loads, excessive G-forces, and continuous vibration without structural fatigue.
A: Yes, but the motor-drive system must be certified as a package. Variable frequency drives can cause additional winding heating. Because of this, motors like the TBVF or WEPM series need integrated thermistors to monitor wind temperatures and prevent overheating in hazard zones.
Explore our premium industrial motors designed to operate reliably in harsh, hazardous environments.
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