Explore our high-performance low/high voltage induction motors, engineered to comply with strict international standards and explosion-proof protocols.
Xi’an Lite SIMO Motor Co., Ltd. is a leading global supplier and pioneer in the electric motor industry. As one of the largest primary enterprises in the Chinese mechanical sector, SIMO specializes in the research, design, and manufacturing of large/medium-sized, high and low-voltage AC/DC electric motors, synchronous systems, and explosion-proof solutions.
Our operation functions as a fully comprehensive manufacturing and service system. It integrates initial research and development, custom mechanical processing, mold fabrication, assembly line testing, and continuous lifecycle maintenance. Ranking at the top of China's motor manufacturing scale, SIMO has achieved rapid year-over-year industrial expansion, delivering unmatched value to global customers.
Unlocking premium energy conservation metrics across the global manufacturing landscape.
Across global commercial and industrial applications, electric motor-driven systems (EMDS) consume approximately 46% of all global electricity. This excessive energy reliance makes them a primary focus in carbon emission reduction strategies, corporate ESG goals, and strict municipal regulatory frameworks. Under the updated IEC 60034-30-2 standard, the international motor efficiency classification system outlines tiers from IE1 (Standard) up to IE5 (Ultra-Premium Efficiency). The transition to IE5 represents a crucial strategy for heavy industries aiming to decarbonize and protect operations from rising electricity prices.
An IE5 electric motor reduces internal losses by approximately 20% to 30% compared to an equivalent IE4 unit. For continuous, high-duty industrial equipment like water utility pumps, mine ventilators, chemical stirrers, and heavy processing compressors, this reduction translates to substantial lifetime operating cost savings. At SIMO, our custom OEM IE5 electric motor designs employ advanced electromagnetic steel, optimized slot geometry, and precision permanent magnet synchronous rotor architectures. These features deliver sustained peak efficiency even during variable-load, lower-speed operations managed by Variable Frequency Drives (VFDs).
By using premium thin silicon steel laminations and optimizing stator winding slot designs, SIMO IE5 motors minimize eddy current and hysteresis losses, ensuring cool operational runtimes under high-demand cycles.
Utilizing high-coercivity NdFeB (Neodymium Iron Boron) permanent magnets, our synchronous PM lines eliminate rotor copper losses completely, maintaining high efficiency across a wide range of torque variations.
With Class H and Class F corona-resistant insulation systems combined with Vacuum Pressure Impregnation (VPI), our motors withstand thermal stress and high voltage spikes caused by PWM inverter outputs.
Over 60 years of engineering excellence and continuous technological adaptation.
A technical breakdown of our complete product line, designed to meet the demands of heavy industries.
Our research and development and manufacturing cover all types of motors. With products span across 34 major series, more than 1,800 varieties, and more than 19,500 specific configurations, we support power ranges starting from 0.35 kW all the way to 25,000 kW. Our fixed assets of 380 million RMB and more than 1,172 sets of advanced equipment ensure that every product meets exact specifications.
| Motor Series Class | Common Design Code Examples | Standard Voltages | Primary Industrial Use Cases |
|---|---|---|---|
| High Voltage High Efficiency Asynchronous | YX, YXKK, YXKS Series | 6kV, 10kV, Custom 3kV/3.3kV | Mining Ventilation Fans, Municipal Pumps, Petrochemical Compressors |
| Wound Rotor High Voltage | YR, YRKK, YRKS Series | 6kV, 10kV, 11kV | High Inertia Ball Mills, Heavy Conveyors, Industrial Crushers |
| Ultra-Premium Low Voltage Induction | YE3, YE4, YE5 Series | 380V, 400V, 690V, Custom 460V | General Machinery Drives, HVAC Fans, Hydraulic Systems |
| Variable Frequency Drive (VFD) Optimized | YVFE3, YVFE4, YVFE5 Series | Low / Medium / High Voltage ranges | Dynamic Speed Extruders, Conveyor Networks, Precision Pumps |
| Hazardous Area Explosion-Proof | YBX3, YBX4, YBX5 Series | 380V, 660V, 1140V, High Voltages | Oil & Gas Refineries, Underground Coal Mining, Grain Silos |
| Synchronous Generators & Motors | T, TD, TK, TDMK, TFW Series | 380V to 13.8kV, up to 25,000kW | Power Generation, Large Air Compressors, Water Pumping Stations |
| Medium / Large Scale DC Motors | Z2, Z4, Z Series | 110V to 1000V DC | Steel Rolling Mills, Cement Kilns, Marine Propulsion, Cable Car Pulls |
To deliver peak performance, our custom OEM engineering team configures shaft dimensions, frame options, custom paint layers, special sensors, and low-starting-current curves. We also provide integrated control systems, including our High Voltage Soft Start Cabinets, to protect your electrical infrastructure from inrush currents and voltage drops.
A look inside our manufacturing processes, including CNC machining, automated winding, and full-load test setups.









How our ultra-premium efficiency motors operate in demanding, real-world environments.
Industrial operations vary significantly depending on geography, regional grid configurations, climate extremes, and local safety rules. SIMO’s motor designs are engineered to operate reliably across a wide range of environmental conditions:
Certifications verifying that our motors meet international requirements for safety, quality, and performance.
To support global supply chains, our motors comply with major international quality and environmental standards. Tech Full Simo Motor has completed audits for ISO 9001 Quality Management Systems, the European Union CE mark, United States Underwriters Laboratories (UL) standards, and Russian GOST certifications. These verifications ensure our motors meet international grid, safety, and efficiency rules, allowing for straightforward integration into projects worldwide.
















Next-generation concepts: The path to IE6 and integrated predictive diagnostics.
Looking ahead, SIMO's engineering team is developing concepts for the IE6 efficiency tier, preparing for future regulatory requirements. Because standard induction designs are reaching their thermal limits, this research focuses on advanced topologies, including Synchronous Reluctance (SynRM) and line-start permanent magnet configurations. These new designs aim to reduce internal losses by an additional 15% to 20% compared to IE5 motors.
We are also integrating smart, connected technologies into our motors. Future models will feature built-in vibration, temperature, and magnetic flux sensors. Using IoT gateways, these sensors send real-time performance data to maintenance teams. This setup allows operators to monitor motor health, estimate bearing wear, identify coil degradation early, and schedule service during planned downtime, helping to prevent unscheduled outages.
Technical answers to common questions about IE5 motors and custom OEM designs.
Consult with our engineering team to design, configure, and build a high-performance motor tailored to your specific application requirements.
Request Technical AssistanceExplore our line of heavy-duty DC motors, high voltage induction systems, and power-factor correcting synchronous generators.