Explore our premium product selections engineered for severe industrial conditions and high performance.
Established in 1955, Xi’an Lite SIMO Motor Co., Ltd has stood at the absolute forefront of the Chinese mechanical and power industry. For more than six decades, SIMO Motor has pioneered the engineering, production, and optimization of large and medium-sized high-voltage and low-voltage AC/DC electric motors, synchronous units, and explosion-proof powertrains designed to withstand the harshest industrial parameters.
Operating as a unified manufacturing and service supplier, SIMO integrates every level of motor development: advanced electrical and magnetic design, precision machining, high-tolerance mold fabrication, dynamic assembly, and exhaustive quality testing. As a Top-tier manufacturer within China's electric motor landscape, SIMO continues to drive systemic growth through cutting-edge technology and unparalleled scale.
From a state-owned foundational plant to a global industry leader in heavy machinery propulsion.
How international standards, environmental demands, and localized engineering shape the future of industrial electric powertrains.
In modern industrial processing, electric motors account for over 70% of total electrical energy consumption. Transitioning from standard IE3 to IE5 efficiency levels like our YE5 series reduces energy losses by up to 30%, delivering significant operating cost savings and lowering carbon footprint profiles globally.
High-voltage motors operating at 6kV and 10kV (such as our YKK & YKS series) must manage severe thermal and mechanical stresses. Through advanced VPI (Vacuum Pressure Impregnation) insulation systems, SIMO motors achieve excellent dielectric strength, heat dissipation, and long lifetimes under cyclic overload conditions.
Explosion-proof motors (YBX4, YBX5, YBBP, and YFB4) are engineered with robust flameproof enclosures capable of containing internal explosions. They prevent ignition of external flammable dust or gaseous atmospheres (ATEX/Ex-certified zones), vital for chemical and coal mining operations.




The global electric motor supply chain demands a combination of raw material availability, advanced metallurgical processing, and highly integrated logistics. SIMO Motor operates within China’s premier industrial ecosystem, achieving unmatched manufacturing efficiencies:
A reference table mapping out our core technical capacity across major motor families.
| Motor Series | Type / Characteristics | Power Range (kW) | Key Applications |
|---|---|---|---|
| YE3, YE4, YE5 | Low-Voltage Ultra-Premium Three-Phase Asynchronous | 0.35 kW - 1,000 kW | General machinery, pumps, fans, conveyors, compressors |
| YKK, YXKK, YKS, YXKS | High-Voltage High-Efficiency Induction Motors (6kV / 10kV) | 160 kW - 25,000 kW | Power plants, water conservancy, mining, heavy blowers |
| YR, YRKK, YRKS | Wound Rotor Slip-Ring High-Voltage Motors | 220 kW - 15,000 kW | Heavy-load startups, ball mills, crushers, sugar mills |
| YBX3, YBX4, YBX5 | Flameproof Explosion-Proof AC Induction | 0.55 kW - 2,000 kW | Petroleum refining, chemical plants, underground coal mines |
| YVFE3, YVFE4, YVFE5 | Variable Frequency Speed Regulating High/Low Voltage | 0.55 kW - 10,000 kW | Steel rolling mills, paper manufacturing, variable load pumps |
| T, TD, TK, TDMK | Large Three-Phase AC Synchronous Motors | 200 kW - 20,000 kW | Reciprocating compressors, large mining ball mills |
| Z2, Z4, Z Series | Heavy-Duty Industrial DC Motors | 0.55 kW - 3,000 kW | Extruders, marine propulsion, steel mills, mine hoists |
Where SIMO motors provide high reliability, precision performance, and operational security.
In global mining hubs, ore grinding requires continuous high-torque output. Our TDMK series synchronous motors are customized for mine mill drives, utilizing robust rotor structures to handle cyclic loads and abrasive dust environments.
Safety is paramount in refineries and gas plants. SIMO's YBX5 and YBBP explosion-proof series isolate potential electrical sparks, fully complying with local explosive atmosphere restrictions (ATEX, IECEx, and GOST standards).
Pumping networks and cooling fans in utility operations require continuous uptime. The YKS series air-water-cooled high-voltage motors offer efficient operation, low noise levels, and long bearing life in large pump stations.
SIMO systems are validated by world-leading certifying bodies to ensure reliable field performance.










Technical solutions and procurement queries answered by our senior engineering team.
IE5 (Ultra-Premium Efficiency) motors represent the highest efficiency tier defined by IEC 60034-30-1. Compared to IE4, they reduce motor energy losses by roughly 20% to 30%. This is accomplished through optimized stator laminations, premium grade copper windings, and refined rotor geometry. For heavy-duty industrial installations operating 24/7, the capital investment premium of an IE5 motor is typically recouped via energy savings within 12 to 18 months of operation.
Our high-voltage motors (YKK, YXKK, YKS, YRKK) feature Class F and Class H insulation materials processed via automated Vacuum Pressure Impregnation (VPI). VPI removes moisture and air pockets from the stator winding insulation, creating a solid, high-dielectric, thermally conductive barrier. Furthermore, each rotor is dynamically balanced at operating speed to minimize vibration and protect the bearings.
SIMO Motor possesses certifications including EU "CE", US "UL", Chinese CCC, and Russian "GOST". Our flameproof series (YBX3, YBX4, YBX5, and YFB4) are engineered to satisfy global Ex-proof standards, providing safe operation in explosive gas atmospheres (Zone 1 and Zone 2) and combustible dust zones (Zone 21 and Zone 22).
Yes. Our YVFE3, YVFE4, and YVFE5 series are explicitly designed for variable frequency speed regulation. They feature reinforced winding insulation to withstand high dv/dt voltage spikes from PWM inverters, and are optionally equipped with insulated bearings on the non-drive end to prevent electrical shaft currents, along with independent cooling blowers for continuous low-speed torque delivery.
Premium specialized drives engineered for process industry applications.