High-reliability replacement motors engineered to drop directly into existing footprints without structural modification.
Understanding the massive transition toward energy-efficient, robust drive systems in modern infrastructure.
The global heavy industry landscape is currently undergoing its most significant mechanical shift in a generation. Aging electrical drive infrastructure in power plants, steel mill lines, chemical processing units, and water works is reaching the end of its design life. Concurrently, environmental mandates such as the EU Ecodesign Regulation and regional carbon neutrality targets are forcing enterprises to replace legacy induction motors with high-efficiency IE4 and IE5 equivalents.
Conducting a large-scale OEM Motor Replacement Project is not merely about sourcing another standard machine; it requires matching precise structural metrics, critical mounting dimensions, and transient start-up electrical parameters. Failure to align the replacement motor with existing structural bases or soft-start gearboxes can result in catastrophic downtime and millions in lost production.
Established in 1955, SIMO Motor is a corner-stone of China's electrical machinery manufacturing sector.
Xi’an Lite SIMO Motor Co., Ltd (known globally as LITESIMO) stands as a prominent and comprehensive industrial leader. We specialize in the design, manufacturing, mechanical processing, mold development, and complete assembly of large/medium-sized, high/low voltage AC motors, DC motors, synchronous motors, and hazardous-area explosion-proof motors.
With fixed assets valued at 380 million RMB, more than 1,200 dedicated employees, and a core team of over 260 technical engineers (including 21 senior engineers and 15 state-level experts), SIMO ranks consistently at the top of China’s motor sector. Our modern facility houses over 1,172 sets of advanced testing and heavy-machining equipment, ensuring unmatched production capability and scale.
SIMO operates three manufacturing factories and one dedicated subsidiary factory. These facilities specialize in core punching, stator winding, rotor balancing, and high-voltage vacuum pressure impregnation (VPI) insulation curing processes.
SIMO Motor established and led by the state government, embarking on heavy industrial drive manufacturing.
Relocated to a newly constructed manufacturing facility in Xi'an city to meet growing national infrastructure demands.
Renamed to Xi'an Motor Factory after a series of strategic acquisitions and vertical integrations.
Successfully reformed from a state-owned factory into a highly efficient limited liability company.
Simo Motor Group established, organizing 14 specialized subsidiaries under one structural umbrella.
Relocated manufacturing center to a high-tech, advanced industrial plant designed for heavy motor production.
Transitioned corporate entity name to Tech Full Simo Motor to reflect international technological growth.
Advancing our capabilities to serve as one of the best motor manufacturers globally for heavy industrial replacements.
Covering 34 major series, over 1,800 varieties, and 19,500 distinct technical specifications.
Our expansive production capabilities span power ranges from 0.35kW to 25,000 kW. This ensures that no matter how specialized or demanding your replacement project is, SIMO has the engineering blueprint to replicate and optimize the system. Our main series include:
Features our flagship YX, YXKK, and YXKS series high-efficiency, three-phase asynchronous motors designed for heavy compressors, blowers, and water pumps. We also design wound rotor YR, YRKK, and YRKS series high-voltage motors for high-inertia startup applications.
Including YE3, YE4, and ultra-premium YE5 series three-phase motors. These designs feature optimized core geometry and high slot-fill ratios, significantly minimizing internal copper and iron losses to reduce ongoing operating expenditures.
YBX3, YBX4, and YBX5 low and high-voltage explosion-proof motors designed for petroleum, petrochemical, offshore platform, and dust-heavy chemical facilities. Certified to meet the most stringent safety standards.
Featuring T, TD, TK, and TDMK series industrial synchronous motors, alongside TFW large-scale synchronous generators (350kW to 5,000kW) engineered for power grid stabilization and heavy rolling mills.
YVFE3, YVFE4, and YVFE5 low/high voltage VFD motors. Designed with independent cooling systems and insulated bearings to protect against shaft currents during prolonged variable speed cycles.
Z2, Z4, and large-scale Z series DC motors. These remain critical for legacy steel mills, cable pullers, paper production lines, and rubber extrusion systems demanding broad constant-torque curves.
Rigorous quality control systems certified by global regulatory standards.
SIMO products pass through stringent testing before leaving the factory. We hold certifications including ISO9001 Quality System Certification, European Union CE, United States UL, and Russian GOST. Our testing lab conducts complete full-load tests, shaft vibration analyses, noise verification, and high-voltage insulation tests on every engineered machine.
















Leveraging the world's most advanced supply chain ecosystem to optimize capital expenditures.
Choosing an industrial-scale manufacturing partner in China provides measurable competitive advantages. Western motor replacements often carry prolonged lead times exceeding 10 to 12 months, driven by raw material delays and limited engineering capacity. At SIMO, we optimize standard processes to achieve lead times that are 30% to 40% shorter, ensuring your plant minimizes operational delay.
These efficiency benefits are achieved through several key advantages:
By integrating sourcing, winding, testing, and transport logistics in one central manufacturing hub, SIMO insulates your projects from global supply chain disruptions. This translates directly to reliable delivery schedules and competitive pricing on premium high-voltage configurations.
SIMO motors operate in the most demanding industrial environments worldwide.
Operating in harsh environments, our heavy duty slip-ring (wound rotor) motors drive large ball mills, sag mills, and ore crushers. High-starting torque under load prevents electrical grid sag and thermal stress on copper windings.
In refining plants and natural gas booster stations, SIMO YBX3 and YBX4 explosion-proof motors run continuously. Flameproof housings and non-sparking terminal boxes ensure high safety levels in zone 1 and zone 2 hazardous locations.
For large-scale agricultural irrigation, drainage, and municipal clean water networks, YKS water-to-air cooled motors provide continuous operation with lower ambient noise and optimal thermal management in hot climates.
Streamlining the transition from drawing design to dock-side delivery.
Engineers analyze existing drawings, shaft diameters, mounting dimensions, and centerline heights to ensure a match with Simo's drop-in replacement designs.
Matching dynamic parameters such as load inertia (J), starting currents, soft-start ramping profiles, and thermal curves ensures seamless integration with your existing electrical cabinet.
All large machines are wrapped in heavy anti-humidity vapor barriers and secured within heavy wooden structural crates. This protects them from sea-salt corrosion and mechanical shocks during oceanic transport.
Answering critical engineering and sourcing questions from B2B buyers.
Discover additional motor categories built to power complex industrial infrastructure.