Explore our top-tier industrial product line, engineered to meet rigorous IEC, NEMA, and GB standards for outstanding electrical efficiency and operational reliability.
Electric motor systems constitute over 53% of global electricity consumption, climbing to nearly 70% within core industrial manufacturing environments. In an era shaped by stringent MEPS (Minimum Energy Performance Standards), the transition from legacy motor topologies to IE4 (Super Premium Efficiency) and IE5 (Ultra Premium Efficiency) standards is no longer just a choice—it is a critical imperative for sustainable global growth.
As a leading Chinese manufacturer, Xi'an Lite SIMO Motor Co., Ltd. (LITESIMO) bridges the gap between advanced electromagnetic engineering and cost-competitive industrial application. By implementing cutting-edge rotor structural design, premium low-loss copper windings, and optimized slot topologies, we provide high-efficiency solutions that significantly reduce your lifecycle ownership costs and carbon footprint.
"According to the International Energy Agency (IEA), upgrading to premium and ultra-premium efficiency motor systems can yield energy savings of up to 20% to 30% across major industrial applications."
From state-owned foundations to an international motor manufacturing group, our history reflects a continuous drive towards excellence.
SIMO Motor is established under national planning, laying the foundation for modern Chinese rotating machinery design.
Restructured and expanded into Xi'an Motor Factory, merging various key facilities to boost output scale.
Reformed into a highly dynamic, limited liability enterprise from a fully state-owned entity, paving the way for international trade.
SIMO Motor Group is founded, consolidating 14 specialized subsidiaries into a unified industrial manufacturing giant.
Relocated to a newly constructed, state-of-the-art production base in Xi'an's high-tech industrial zone, featuring high-precision tooling.
Officially renamed to Tech Full Simo Motor, aligning corporate strategy with international export standards and advanced technology R&D.
Continuous focus on IE4/IE5 standards, intelligent drive control automation, and serving global EPC engineering giants.
Currently running 3 modern manufacturing facilities, holding a fixed asset base of 380 million RMB, and operating 1,172 sets of high-precision equipment.
Understanding the raw material, supply chain, and scale advantages that make Chinese factories the global epicenter of motor manufacturing.
Our proximity to world-class copper wire drawing operations, high-grade silicon steel suppliers (such as Baosteel), and precise bearing casting plants ensures minimal lead times and optimized material costs.
China controls over 70% of global rare-earth mining and refining capacity. This gives our factory stable, cost-effective access to Neodymium Iron Boron (NdFeB) magnets, which are critical for high-torque PM synchronous motors.
We perform rigorous testing to guarantee full alignment with international MEPS standards, satisfying NEMA Premium, IEC standard ratings, and various European directives without compromise.
The industrial landscape is undergoing several rapid technological shifts. Companies looking to minimize energy costs must align their procurement with these five fundamental industry patterns:
Our expansive product portfolio spans low-voltage, high-voltage, explosion-proof, synchronous, and DC motor designs tailored for diverse industrial needs:
| Motor Series | Standard Category | Power Range (kW) | Voltage Class | Primary Applications |
|---|---|---|---|---|
| YE3 / YE4 / YE5 | Standard Low Voltage (IE3/IE4/IE5) | 0.75 - 1000 kW | 380V, 400V, 690V | Pumps, Fans, Compressors, Conveyors |
| YBX3 / YBX4 / YBX5 | Explosion-Proof (ATEX / IECEx) | 0.55 - 2000 kW | 380V, 660V, 6kV, 10kV | Petrochemical, Coal Mines, Gas Storage |
| YX / YXKK / YXKS | High Efficiency High Voltage (HV) | 220 - 25000 kW | 3kV, 6kV, 10kV | Heavy Water Pumps, Iron Ore Mills |
| YR / YRKK / YRKS | Wound Rotor / Slip Ring Motors | 160 - 20000 kW | 6kV, 10kV | Crushers, Ball Mills, Rolling Mills |
| Z2 / Z4 / Z Series | Direct Current (DC) Motors | 0.55 - 2000 kW | 110V - 1000V | Metal Rolling, Extruders, Cable Machinery |
| T / TD / TK / TDMK | Large Three-Phase Synchronous | 200 - 25000 kW | 6kV, 10kV | Large Reciprocating Compressors, Fan Drives |
We design systems that are optimized for specific operating environments to ensure long-term durability and efficiency.
Volatile atmospheres demand reliable explosion protection. Our YBX3, YBX4, and YBX5 Series Asynchronous Ex Motors are enclosed in flameproof casings designed to withstand internal explosions, protecting your offshore platforms and onshore refineries.
Extremely high starting torque, cyclical shock loading, and dusty atmospheres are standard in steel fabrication. Our heavy-duty Z4 and Z series DC motors, along with YRKK slip ring AC motors, deliver precise speed control and massive overload capabilities.
Running multi-megawatt pumps requires stable high-voltage performance. SIMO's YKS and Y2 series compact AC motors run cool, feature optimized dual-bearing systems, and minimize power losses across public water distribution infrastructure.
A look inside our 1200-employee facility in Xi'an, housing high-precision fabrication machinery, automated CNC winding equipment, and testing labs.








Global procurement specialists face multiple challenges, including supply chain bottlenecks, compatibility issues with local grid systems, and complex certification processes. SIMO Motor simplifies this with dedicated engineering support and international standards compliance.
Whether you are procuring custom high-voltage soft-start cabinets, modifying a standard Z-series DC motor frame, or importing explosion-proof motors for hazardous areas, our team of 260 technical engineers helps you verify mounting configurations, electrical parameter compatibility, and load profiles.
Our quality control program covers every stage of production, from raw steel selection to final dynamic balancing and full-load testing. Our vacuum pressure impregnation (VPI) class F insulation system ensures excellent moisture, dust, and chemical resistance, extending motor life in harsh industrial settings.
We hold certifications to meet the strict regulatory requirements of global industrial markets, ensuring safe and reliable operation.












Get answers to common technical, installation, and procurement questions from our engineering team.
According to the IEC 60034-30-1 standard, each efficiency level reduces energy losses by about 15% to 20% compared to the previous class. IE4 represents "Super Premium" efficiency, and IE5 stands for "Ultra Premium". To hit IE5 requirements, we optimize slot geometry, use high-quality silicon steel laminations, and apply permanent magnet rotor options when necessary.
Our YBX3, YBX4, and YBX5 explosion-proof motor families are built with flameproof enclosures (Ex d). The casings are pressure-tested to withstand internal gas or dust explosions without propagating flames to the surrounding air, meeting ATEX and IECEx specifications.
While AC motors driven by VFDs are now common, DC motors are still preferred for applications requiring continuous high torque at low speeds, high starting torques, or simple speed adjustment without introducing harmonic distortion to the power grid, such as in metal mills and extrusion equipment.
We offer IC411 (totally enclosed fan cooled), IC611 (air-to-air heat exchanger), and IC81W (water-cooled) systems. Water cooling (e.g., YKS series) provides high heat dissipation efficiency and quiet operation, making it ideal for compact installations.
Select from our heavy-duty synchronous systems, custom high-voltage AC units, and high-efficiency variable frequency motors.