Explore our state-of-the-art asynchronous, DC, and flameproof motor lineups optimized for low energy dissipation and maximum reliability.
Xi’an Lite SIMO Motor Co., Ltd stands as a pillar of excellence in the Chinese mechanical and electrical machinery industry. Specialized in the development, manufacturing, and servicing of large, medium, and small-scale high/low voltage AC motors, DC motors, synchronous motors, and explosion-proof motors, SIMO represents a complete vertical solution provider. From initial design engineering to mechanical processing, mold casting, precise assembly, and rigorous testing, we guarantee unmatched craftsmanship.
Ranking at the absolute forefront of China's motor sector, SIMO maintains a robust development trajectory. We deliver power-transmission efficiency that helps global enterprises slash operational expenditures and fulfill environmental sustainability requirements.
Our infrastructure covers 3 manufacturing bases, a highly specialized subsidiary factory, and houses over 1,172 sets of advanced equipment to execute large-scale, high-precision industrial production.
Decades of industrial evolution, transforming from a state-owned facility into a premier global player in mechanical engineering.
A deep dive into our comprehensive portfolio of 34 major series, 1,800 varieties, and 19,500 individual specifications ranging from 0.35kW to 25,000kW.
Represented by the YX, YXKK, and YXKS series, our high-voltage three-phase asynchronous motors are engineered to optimize heavy-duty operations. Built with Class F/H insulation and processed via advanced Vacuum Pressure Impregnation (VPI), they deliver optimal thermal thresholds, long lifetimes, and exceptional mechanical rigidity.
The YBX3, YBX4, and YBX5 explosion-proof series provide certified hazard mitigation for dangerous atmospheres (coal mining, oil & gas extraction, and petrochemical refinement). These flameproof motors feature robust ductile-iron framing to withstand inner explosions without risking ambient ignition.
The YVFE3, YVFE4, and YVFE5 variable frequency series are customized for variable speed demands. Equipped with independent forced-cooling fans, they maintain excellent efficiency and prevent heat buildup even when running at low-speed, high-torque levels.
| Motor Series Class | Designation Series | Power Output Range (kW) | Voltage Options | Core Application Environments |
|---|---|---|---|---|
| High-Efficiency Low Voltage | YE3, YE4, YE5 Series | 0.75kW - 375kW | 380V, 400V, 415V, 660V | Pumps, fans, standard manufacturing lines needing IE3/IE4/IE5 standard ratings. |
| High-Voltage AC Asynchronous | YX, YXKK, YXKS Series | 220kW - 25,000kW | 6kV, 10kV, 11kV | Large compressors, power plants, heavy ventilation, water conservancy. |
| Explosion-Proof / Flameproof | YBX3, YBX4, YBX5, YFB3 | 0.55kW - 1,800kW | 380V / 660V / 1140V / 6kV | Petrochemical facilities, underground coal mines, grain dust handling. |
| Synchronous Motors | T, TD, TK, TDMK Series | 200kW - 20,000kW | 6kV, 10kV | Heavy milling, mine crushers, large reciprocating compressors. |
| Direct Current (DC) | Z2, Z4, Z Series | 0.55kW - 3,000kW | 110V - 1000V | Metal rolling mills, extrusion lines, paper making machinery, railway traction. |
Pioneering the next generation of industrial motion solutions focused on sustainability and digital integration.
As the world converges on Net-Zero carbon emissions, motor efficiency standards have transitioned from IE3 to IE4, and now rapidly towards IE5. Xi'an SIMO has completed the R&D cycle for its YE5 and YVFE5 series, utilizing high-grade cold-rolled non-oriented silicon steel sheets and optimized slot designs. By minimizing stator copper loss, rotor aluminum loss, and core friction loss, SIMO motors achieve premium ratings that exceed current regulatory requirements.
The future of motor lifecycle management lies in predictive maintenance. Our upcoming smart-motor integration involves deploying thermal sensors inside the windings and accelerometer vibration sensors near the bearings. Using a secure wireless gateway, these telemetry points connect to cloud dashboards, allowing operators to predict failures before they occur, drastically reducing unscheduled plant downtime.
For low-speed, high-torque applications that historically relied on gearboxes, SIMO is expanding its Permanent Magnet Synchronous Motor (PMSM) lines. Eliminating rotor slip losses allows these motors to operate at up to 97% efficiency across a broad speed range, offering a lighter and more reliable footprint than traditional induction systems.
How SIMO powertrain systems drive critical processes in global heavy industries.
In abrasive environments, machinery demands immense torque. The TDMK series high-voltage three-phase synchronous motors are specifically designed for coal mines, copper concentrators, and cement mill grinding. Designed with a high pull-in torque coefficient, they handle severe starting loads while maintaining a stable power factor.
In refinery operations, safety is paramount. Our YBX3, YBX4, and YBX5 explosion-proof motors prevent gas and dust ignition. Suitable for Zone 1 and Zone 2 petrochemical applications, they feature IP55 enclosure protection and flameproof joints certified to meet stringent international standards.
Pumping stations require continuous operation over long durations. The YRKS and YXKS water-cooled and air-to-water heat exchanger motors ensure optimal temperature control under heavy continuous service. These systems run efficiently in extreme environments, lowering cooling costs and system downtime.
Operating hot and cold rolling mills demands highly responsive and precise motor speed control. SIMO's Z series large-scale DC motors provide outstanding torque delivery and speed control, managing sudden shock loads and continuous speed variations.
Advanced manufacturing infrastructure that guarantees precise scheduling, stable pricing, and uncompromised build quality.
At Xi'an SIMO, we mitigate supply chain volatility by integrating all critical production stages in-house. Our facility houses 1,172 sets of high-precision equipment, including automated silicon steel slotting presses, robotic coil-winding stations, CNC gantry milling machines, and digital VPI tanks. This integration guarantees consistent quality control and helps avoid component bottlenecks.
By locating our manufacturing operations in China's industrial heartland, we benefit from reliable, local access to premium electrical steel, ultra-pure copper conductors, and high-tensile shafts. This geographical advantage helps insulate our production schedules from global shipping disruptions and geopolitical delays.
Meeting global compliance standards to ensure safety, reliability, and smooth integration into any industrial market.
Xi'an SIMO has implemented an ISO9001-certified Quality Assurance System. Our industrial motors carry global certifications, including EU CE, US UL, Russian GOST-R, and national CCC marks. These credentials verify that our motors comply with all major international efficiency, performance, and safety criteria.
Understanding the true financial returns of sourcing high-efficiency motor systems.
For purchasing officers and engineering directors, the initial capital expenditure (CapEx) represents only a fraction of a motor's life-cycle cost. Over a typical 20-year operational life, electricity consumption accounts for approximately 95% to 97% of the Total Cost of Ownership (TCO).
Formula for Annual Energy Cost (AEC):
AEC = (kW × Hours × Utility Rate) / Efficiency Rating (η)
Upgrading from a standard IE2 motor to a SIMO IE4 or IE5 series motor typically reduces energy consumption by 3% to 6%. In 24/7 continuous operations, this difference can offset the initial purchase price of the motor within the first 12 to 18 months of service.
Providing clear answers to common questions about industrial motors and energy efficiency standards.
Browse our selection of heavy-duty synchronous and direct current motors designed for high torque and challenging environments.
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