High-Quality Horizontal Shaft Motors Manufacturers & Factories

Precision Industrial Drives Engineered for Heavy-Duty Applications, Extreme Environments, and Maximum Thermal Efficiency Worldwide

Authorized Global Distributor & Manufacturing Powerhouse

Shaanxi Nanfang Motor Technology Co., Ltd. is the key authorized distributor of Wolong Electric Drive Group Co., Ltd. Founded in 1984 and listed publicly in 2002 (code SH600580), Wolong has set standard limits for international drive manufacturing. Over thirty years of strategic engineering expansions have positioned the group with 3 massive manufacturing bases, 39 advanced factories, and 3 state-of-the-art global R&D centers.

Wolong focuses intensely on horizontal shaft motors and specialized motion control systems, establishing a world-renowned standard in custom engineering, material durability, and distribution networks.

100+
Production Lines
58+
Global Markets
32+
Technical Patents
200+
Megawatt Projects

Industrial Drive Solutions for Heavy Duty Environments

Meeting requirements across hazardous zones, heavy manufacturing, and energy-efficient operations.

ATEX/IECEx/EAC Certified

Engineered for compliance in volatile dust and gas atmospheres, assuring risk mitigation across petrochemical processing plants, chemical facilities, and grain silos worldwide.

High Efficiency & Smart Energy

Delivering complete selections across IE3, IE4, and advanced IE5 motor models. We utilize permanent magnet architectures (PMSM) to optimize efficiency curves and minimize load losses.

Diversified Application Portfolio

Custom-engineered solutions for pumps, industrial conveyor systems, heavy-duty mining machinery, high-velocity ventilation fans, and dynamic mechanical linkages.

Technological Advantages & Brand Synergy

Why global heavy industries rely on Wolong’s consolidated manufacturing and specialized design capability.

R&D Advantages Icon

R&D & Tech Engineering

With R&D structures established in China, Europe, and Japan, plus our central Research Institute in Shanghai, Wolong focuses on multi-physics analysis, advanced metallurgy, and magnetic flux optimization to lead in drive efficiency.

Brand Advantage Icon

Multi-Brand Heritage

Consolidating centuries of motor innovation. Our portfolio includes respected names such as Brook Crompton, Morley, Laurence Scott, Schorch, ATB, and Nanyang Explosion, serving the oil and gas, petrochemical, and mining sectors.

Explosion-proof Advantage Icon

Explosion-Proof Leadership

Our heavy industries motors are designed to withstand structural stress. Validated by international regulatory frameworks, our explosion-proof systems hold active ATEX, IECEx, and CU-TR certifications.

Development Trends in Horizontal Shaft Motors

Decarbonization, predictive maintenance, and digital optimization are changing the trajectory of industrial drive technologies.

Transition to Ultra-High Efficiencies (IE4 & IE5)

Industrial operations are moving away from legacy IE3 motors to meet strict international carbon reduction targets. Permanent Magnet Synchronous Motors (PMSM) with horizontal shafts allow facilities to reduce energy losses under variable loads, delivering quick returns on investment through operating cost savings.

IoT Integration & Real-time Diagnosis

Modern horizontal shaft drive setups are transitioning into smart systems. By integrating thermal sensors, vibration probes, and phase-monitoring tech directly within the motor housing, plant engineers can deploy predictive diagnostics before failures occur, reducing unplanned downtime.

Advanced Insulation for Variable Frequency Drives (VFD)

Using Variable Frequency Drives exposes motor windings to high voltage spikes and harmonic currents. To manage these stressors, manufacturing is evolving to use dual-shielded copper wiring, custom-engineered mica tapes, and advanced vacuum pressure impregnation (VPI) methods to extend winding lifespans.

A Century of Integrated Development & Brand Acquisitions

Building a global framework through engineering heritage, technology integration, and international quality standards.

Acquisition of Austrian ATB Motor Group by Wolong

The ATB Group Acquisition, Morley, & Laurence Scott (2011)

In 2011, Wolong expanded its European presence by acquiring 97.94% of the Austrian ATB Group. This integration included the industry-regarded brand Morley—which brings nearly 130 years of underground coal mining drive manufacturing experience—and Laurence Scott, a developer of low starting-current systems for naval vessels and nuclear installations.

ATB Certificate Morley Logo Integration Laurence Scott Integration
Brook Crompton and Schorch Motors joining Wolong group

Integration of Brook Crompton & Schorch

By bringing Brook Crompton into the group, Wolong added over a century of experience in design and low-to-high voltage AC motor production, including the signature Brook Crompton "W" and "10" series. Simultaneously, the integration of Schorch (established in 1882) strengthened our capability to supply heavy industries like petrochemical processing, water treatment, and steel mill operations globally.

Schorch Factory Floor Brook Crompton Design
OLI vibration motor and Nanyang Explosion proof group joined Wolong

Ex Vibration Technology & GE Industrial Motors (2015-2018)

Wolong built strong partnerships with OLI (vibration motors) and integrated China's largest explosion-proof base, Nanyang Explosion-Proof Group Co., Ltd. (CNE), in 2015. In 2018, General Electric (GE) Industrial Motors joined the group, bringing commercial and industrial experience to support operations in petrochemicals, mining, and materials handling.

Precision Design & Mechanical Components

A detailed look at the engineering components that define the durability of our industrial horizontal shaft motors.

High-quality Cast Aluminum and Copper Bar Motor Rotor Manufacturing

Advanced Balanced Rotor Assemblies

Our rotors feature a robust squirrel-cage design. Cast aluminum rotors are produced using centrifugal or high-pressure die-casting processes, integrating rotor bars and end rings into a solid unit for strength. For higher capacity machinery, copper bar rotors are used, with specialized copper bar securing and advanced end-ring welding. High-speed models also incorporate specialized protective rings to manage centrifugal stress.

VPI Processed Motor Stator Windings

Insulated Stator Winding Architecture

Our coils are constructed with glass-cloth reinforced polyester films and wrapped in high-grade mica tapes. Stator cores undergo a thorough Vacuum Pressure Impregnation (VPI) process to seal the insulation against moisture and dust. This design delivers excellent electrical insulation, structural strength, moisture resistance, and thermal tolerance to withstand continuous industrial duty cycles.

Digitally Simulated High-Strength Cast Iron Motor Frame

Multi-Physics Simulated Frame

Developed using structural and fluid dynamics simulation platforms, our heavy-duty motor frames are constructed from high-tensile cast iron or fabricated steel. The frame design features structural redundancy and cooling rib patterns to optimize heat dissipation. It is engineered to withstand physical shocks and isolate system vibrations, maintaining cool operation under continuous loads.

Low-Noise Fan Cover System with sound absorbing material

Low-Noise Aerodynamic Fan Hood System

The cooling layout includes a specialized fan cover, air guides, protective window meshes, and sound-dampening plates. A side-inlet design optimizes airflow in space-constrained installations, reducing air friction and noise. Combined with internal sound-absorbing linings, this system manages noise levels while maintaining an IP22 rating to prevent direct contact with rotating elements.

Global Enterprise Procurement Requirements

We align our manufacturing and supply chain options with the sourcing and risk management goals of global procurement teams.

Total Cost of Ownership (TCO) Optimization

Procurement teams evaluate both the initial purchase price and operational costs over the equipment's lifespan. By utilizing IE4 and IE5 configurations, our horizontal shaft motors help reduce overall energy consumption. The durable VPI insulation and simulated frames minimize unexpected downtime and repair expenses, lowering the Total Cost of Ownership.

Supply Chain Continuity & Dual-Sourcing Strategies

Geopolitical challenges make regional single-sourcing a supply chain risk. Wolong manages this with 39 factories across China, Europe, Vietnam, Mexico, and India. This multi-region manufacturing setup helps secure timely delivery of large-scale motor orders, keeping your projects on schedule.

Compliance with Environmental Standards

Global regulations demand transparency in material sourcing and carbon footprint metrics. Our manufacturing processes prioritize eco-friendly, recyclable metals and conform to RoHS/REACH standards, helping your projects align with modern environmental criteria.

Macro Industry Solutions & Engineered Systems

Providing specialized power systems configured for key industrial sectors globally.

Petrochemical & Off-Shore Refining

Our positive-pressure type (TZYW series) and flameproof options (YB3, YBBP series) are engineered for the gas and vapor atmospheres of chemical processing. With specialized coatings to protect against salt spray and moisture, they provide continuous, reliable service in demanding refining environments.

Heavy Mining & Excavation

Mining operations require high torque and reliable debris protection. Built with rugged cast iron frames and copper bar rotors, our Morley-derived mining motors deliver the durability needed for heavy conveyor runs and underground mining equipment.

Municipal Water & Wastewater Treatment

Pumping facilities rely on high efficiency and compatibility with variable frequency drives. Our WE3 and WEPM PM-motor lineups provide excellent efficiency under variable speed demands, helping municipal operators reduce energy usage and operating costs.

International Quality Standards & Certifications

Tested and certified by international regulatory authorities for safe operation across global industrial networks.

Nemko ATEX Certification CSA Certificate CE Mark Quality Proof CCC Certificate SABS Safety Certificate TESTSAFE Standard Compliance

Wolong maintains a comprehensive certification strategy to support projects in diverse regional markets:

  • ISO Quality Framework: Wolong is certified to ISO 9001, verifying that our engineering, design, and manufacturing processes meet recognized quality management standards.
  • NEMA Performance Standards: Our electric motors undergo thorough testing—including efficiency, starting torque, thermal tolerance, and balance evaluations—to comply with NEMA specifications. Our low-voltage motors hold UL and CSA certificates for the North American market.
  • IECEx & ATEX Directives: Our explosion-proof and high-voltage motors are certified to IECEx and ATEX standards, allowing their use in hazardous areas across Europe and international markets.
  • TESTSAFE Certification: This certification supports the supply of Wolong mining motors and heavy machinery to Australian and other international coal mining operations.

Localized Support & Compliance Assurance

We deliver global engineering expertise through localized service networks to keep your operations running smoothly.

Regional Technical Support Hubs

We maintain regional support offices staffed by experienced application engineers. Whether you need assistance with technical integration, motor selection, or configuration questions, our local teams help minimize communication delays.

Certified Explosion-Proof Maintenance

Maintaining certification requires specialized service. Our localized centers are certified to repair explosion-proof machinery (ATEX/IECEx), helping verify that serviced motors continue to meet original design and safety standards.

Standardized Spare Parts Management

We inventory standardized, interchangeable components—such as bearings, seals, cooling fans, and terminal boxes—at regional warehouses. This localized inventory helps shorten shipping times and reduce delivery delays for critical replacement parts.

Engineering Roadmap & Future Outlook

Our ongoing research focuses on next-generation insulation, material weight reduction, and advanced motor diagnostics.

Phase 1: High-Frequency insulation

Developing next-generation resin and mica combinations designed to withstand the fast switching frequencies and voltage rises of modern wide-bandgap silicon carbide (SiC) variable frequency drives.

Phase 2: Hybrid Alloy Structures

Researching hybrid steel-aluminum alloys to reduce motor weight while maintaining structural strength, helping to lower shipping costs and simplify installation.

Phase 3: Sensorless Control

Developing advanced software models to enable precise speed and torque control without physical sensors, reducing potential points of failure in remote or hazardous areas.

Industrial Applications & Deployment

Our horizontal shaft motors are deployed globally in ventilation systems, fluid handling, mining, and industrial process automation.

As a global supplier of industrial motors and drive systems, Wolong operates 39 manufacturing plants and 4 research and development centers across key regions, including China, Vietnam, the United Kingdom, Germany, Austria, Italy, Serbia, Mexico, and India.

Our horizontal shaft motors provide reliable power for industrial equipment, including heavy-duty ventilation fans, high-pressure water pumps, industrial air compressors, and heavy material handling systems. They serve critical processes in ventilation and refrigeration, commercial construction, oil and gas extraction, petrochemical refining, chemical processing, metallurgy, thermal and nuclear power plants, marine applications, and factory automation systems. Our mission is to deliver dependable drive solutions tailored to your operational requirements.

Questions & Answers (FAQ)

Answers to common technical questions regarding horizontal shaft motor selection, installation, and maintenance.

Q1: What are the primary design differences between horizontal and vertical shaft motors?
A1: The main difference lies in the bearing design and load handling. Horizontal shaft motors are designed to support radial forces from belt drives or direct-coupled loads, using ball or roller bearings at both ends. Vertical shaft motors are engineered to manage significant vertical thrust loads using specialized angular contact bearings or spherical roller thrust bearings to support the weight of the pump impeller and dynamic fluid forces.
Q2: How does Wolong's VPI insulation process improve winding lifetime under VFD use?
A2: Our Vacuum Pressure Impregnation (VPI) process places the wound stator core under a vacuum to extract trapped moisture and air pockets from the insulation. A specialized resin is then introduced under pressure, filling all voids within the winding structure. This process increases the motor's resistance to electrical degradation, improves thermal heat transfer from the coils to the frame, and protects the winding against moisture and dust ingress.
Q3: Which ATEX/IECEx zones are Wolong's explosion-proof motors certified for?
A3: We supply motors certified for Zone 1 and Zone 2 (gas environments), and Zone 21 and Zone 22 (combustible dust environments). Depending on your application, we offer flameproof enclosures (Ex d/Ex db), increased safety designs (Ex e/Ex eb), non-sparking configurations (Ex nA/Ex ec), and positive pressure enclosures (Ex p/Ex pxb).
Q4: What options are available to prevent shaft currents and bearing failure?
A4: For motors driven by variable frequency drives (VFDs), voltage spikes can cause harmful shaft currents that damage bearings. We offer optional insulated bearings (typically on the non-drive end) or carbon fiber grounding brushes to safely ground shaft currents and prevent premature bearing wear.