Explore our highly integrated high-voltage alternating current (AC) and direct current (DC) motors engineered for extreme mining, heavy metallurgy, and industrial applications.
Large Power Synchronous Motors (LPSMs) represent the pinnacle of electrical machinery engineering, serving as the mechanical muscle driving critical infrastructure across the globe. Unlike asynchronous induction motors, synchronous motors run at a constant speed completely synchronized with the supply frequency, regardless of load changes. This makes them highly preferred for high-torque, low-speed, and continuous-duty cycles in critical applications.
Furthermore, from an energy perspective, synchronous motors operate with customizable power factors (leading, lagging, or unity). This functionality plays a key role in reactive power compensation within industrial grids, optimizing voltage stability and reducing overall energy distribution costs for high-power demanding facilities. By acting as synchronous condensers, they actively mitigate power quality degradation caused by volatile inductive loads.
Within large-scale industrial operations, choosing the right manufacturer for large synchronous motor technologies is critical. Factors such as high starting torque, stator insulation endurance, thermal distribution patterns under heavy load, and custom mounting configurations are vital parameters for system integration engineers.
Decades of state-backed heritage and continuous modernization to become China’s leading comprehensive motor manufacturer and service provider.
Xi’an Lite SIMO Motor Co., Ltd. stands as a premier enterprise specializing in the manufacturing of large and medium-sized, high and low voltage AC motors, DC motors, synchronous motors, and explosion-proof motors within the Chinese mechanical industry. Today, SIMO operates as a comprehensive manufacturer and service supplier encompassing motor design, precision mechanical processing, mold making, and advanced assembly.
The company maintains a leading position in China's motor industry regarding production scale and has sustained a rapid developmental trajectory for consecutive years. Leveraging our deep engineering background, we provide bespoke drive solutions to some of the world's most demanding environments, from deep coal mines to maritime platforms.
"With a registered capital of 21.5 million RMB and fixed assets totaling over 380 million RMB, SIMO operates 3 advanced manufacturing factories and 1 dedicated subsidiary facility. The manufacturing ecosystem is powered by more than 1,172 sets of state-of-the-art production and testing equipment, guided by a workforce exceeding 1,200 employees."
Our engineering powerhouse features more than 260 technical engineers, including 21 senior engineers and 15 expert engineers who lead our research and development initiatives. This technical expertise ensures that every T, TD, TK, and TDMK series motor leaving our production line satisfies strict custom engineering specifications, ensuring longevity and maximum efficiency.
Explore the milestones that defined our engineering capability over the past six decades.
SIMO Motor was established under national leadership to support China's post-war heavy industrial rebuilding phase.
Moved the entire infrastructure to a newly designed plant in Xi'an City, paving the way for larger production scaling.
Renamed to Xi'an Motor Factory following several successful governmental acquisitions and technical integration phases.
Successfully reformed from a state-owned factory into a highly flexible limited liability company, introducing international quality protocols.
Established the parent group structure, managing 14 highly specialized subsidiaries focusing on key electromechanical niches.
Relocated all operations to a brand-new, high-tech industrial park, integrating CNC tooling centers and VPI treatment tanks.
Officially renamed to Tech Full Simo Motor, aligning corporate strategy with international export standards and global markets.
Continuing the legacy as one of the best motor manufacturers, serving international procurement networks and smart grid projects.
Unparalleled spectrum of specifications, covering power configurations from 0.35 kW up to 25,000 kW across 34 major series.
Why sourcing Large Power Synchronous Motors from China offers global enterprises unparalleled strategic benefits.
China's industrial motor manufacturing ecosystem benefits from deep vertical integration. The immediate proximity to the world's most advanced steel refineries allows SIMO to obtain premium grade, low-iron-loss silicon steel sheets directly. This forms the foundation of low-vibration stator core designs that are vital for multi-megawatt synchronous motors.
Additionally, China’s dominance in the copper refining and rare-earth supply chains ensures that high-purity oxygen-free copper wires and magnetic components remain highly cost-efficient and constantly available. This mitigates supply bottlenecks that routinely affect Western assembly sites.
By producing over 19,500 motor specifications, SIMO leverages significant economies of scale. High-capacity VPI (Vacuum Pressure Impregnation) equipment, state-of-the-art multi-axis CNC milling machines, and automated winding inserting systems operate continuously, distributing fixed operational costs across a broad production volume. This allows us to supply global procurement departments with robust machinery at optimized capital expenditures (CAPEX).
Our location in the historic industrial zone of Xi'an grants us immediate access to major transcontinental railway networks (the New Eurasian Land Bridge) and deep-water commercial ocean ports (Tianjin and Shanghai). This robust transportation infrastructure enables the secure dispatch of oversized cargo—such as synchronous motors weighing up to several dozen tons—directly to sites in Europe, South America, and Central Asia with optimized logistics parameters.
Sourcing from SIMO means accessing a mature network of local component suppliers, specializing in advanced lubrication systems, localized cooling heat exchangers, excitation cabinets, and high-voltage soft-starters. This facilitates one-stop engineering packages, reducing integration risks for engineering, procurement, and construction (EPC) contractors.
SIMO meets stringent global standards, providing complete operational reliability for critical infrastructure projects worldwide.
Reliability is non-negotiable for large-scale synchronous motors. A single downtime event in a mining operation or water pumping station can result in significant financial losses. To ensure the highest level of reliability, SIMO implements rigorous quality control protocols across all phases of design, component casting, winding, insulation, and dyno testing.
Our production facilities are certified under the ISO9001 Quality System, confirming our adherence to standardized assembly methods. Furthermore, to support diverse regulatory demands across international zones, our products carry certifications including European Union "CE" compliance, United States "UL" safety listings, and Russian "GOST" standards.
These credentials verify that our motors comply with safety, structural stability, and efficiency standards, enabling smooth integration into global grids.
SIMO electric motors are widely deployed across major energy and mineral production projects. Key sectors include high-duty mining milling (TDMK series), oil and natural gas transport compressors, coal processing plants, metallurgy rolling mills, large municipal water conservancy networks, shipping navigation drives, and aerospace test beds.
Our technical sales engineers provide direct interface support, ensuring that motor dynamics align precisely with specific drive configurations, including load inertia profiles, environmental temperature conditions, and localized voltage fluctuations.








Aligning development with the global energy transition, smart grid integrations, and high-efficiency operational standards.
The industrial motor market is transitioning toward digitalization. Modern synchronous motors are increasingly integrated with temperature sensors, vibration probes, and partial discharge detectors that continuously transmit performance telemetry to cloud-based diagnostic platforms.
SIMO's R&D division has developed integrated monitoring interfaces that allow engineering teams to perform real-time diagnostic checks. This capability supports predictive maintenance strategies, helping operators resolve mechanical and electrical variances before they lead to unexpected shutdowns.
As national grids integrate more volatile renewable energy sources like wind and solar, maintaining voltage stability becomes more challenging. Large synchronous motors, when designed with modern excitation systems, can dynamically adjust their reactive power output to help stabilize local distribution grids.
This functional value allows industrial operators to avoid low power factor surcharges from utility providers, while contributing to carbon-reduction targets by improving overall power distribution efficiency.
Technical and procurement insights to guide your large synchronous motor selection process.
Select from our certified high-voltage asynchronous motors, DC drives, and digital control cabinets.