Explore our elite array of high-voltage asynchronous motors, premium efficiency induction drives, and customized explosion-proof solutions engineered for demanding global deployments.
The industrial drive sector is currently undergoing a structural transformation powered by decarbonization, electrification, and digital intelligence. As heavy industries strive to meet demanding carbon reduction goals, three-phase AC motors have transitioned from simple power transmission assets into highly complex, software-integrated drive systems.
International regulations have established new MEPS (Minimum Energy Performance Standards) global baselines. Motor systems represent over 70% of total electrical energy usage within modern manufacturing systems. Moving from IE3 to IE5 classes significantly reduces energy losses by up to 35%, ensuring massive operational savings.
Contemporary manufacturing requirements integrate advanced telemetry networks directly into the motor frames. Embedded temperature sensors (Pt100) and multi-axis vibration monitors communicate directly with edge-computing platforms to identify bearing deterioration, insulation breakdown, and phase imbalances before structural failure occurs.
New-generation electromagnetic design integrates premium cold-rolled non-oriented silicon steel sheets along with upgraded VPI (Vacuum Pressure Impregnation) insulation systems. These improvements permit motors to handle higher voltages and dynamic thermal fluctuations while maintaining a compact physical footprint.
Xi’an Lite SIMO Motor Co., Ltd. (LITESIMO) is a cornerstone of China's heavy industrial machinery market. Specializing in the design, engineering, and manufacturing of large/medium-sized, high/low voltage AC motors, DC motors, synchronous drives, and explosion-proof solutions, SIMO is a fully integrated industrial OEM/ODM partner.
From primary mechanical processing to advanced electromagnetic mold layout, comprehensive vacuum impregnation, and performance testing, our factories rank at the pinnacle of China's motor industry. Over decades, LITESIMO has established a reliable supply chain pipeline for high-performance motors used in electricity generation, coal extraction, petrochemical processing, water conservancy, and deep-sea navigation.
With 34 major series, more than 1,800 varieties, and over 19,500 system configurations, our production range spans from 0.35kW to 25,000 kW. To assist procurement engineers, our core product classifications map to specific industrial applications:
| Motor Series | Type / Category | Voltage & Power Range | Primary Industrial Applications |
|---|---|---|---|
| YX / YXKK / YXKS | High Voltage High Efficiency Asynchronous | 6kV - 10kV | Up to 25,000 kW | Heavy ventilation systems, water utility pumps, steel mills, large compressors. |
| YR / YRKK / YRKS | Wound Rotor High Voltage slip-ring | 6kV - 10kV | Medium/Large scale | Ball mills, crushers, sugar mills, hoists requiring high starting torque under load. |
| YE3 / YE4 / YE5 | Low Voltage Ultra-Premium Efficiency (IE3-IE5) | 380V - 660V | 0.55kW - 375kW | General mechanical manufacturing, packaging plants, automated assembly lines. |
| YVFE3 / YVFE4 / YVFE5 | Variable Frequency Speed Regulating | Low & High Voltage | HVAC systems, dynamic speed conveyors, metallurgy lines, heavy rollers. |
| YBX3 / YBX4 / YBX5 | Explosion-Proof Asynchronous Motors | Ex d I/IIA/IIB/IIC | High/Low Voltage | Petroleum platforms, chemical synthesis, underground coal mining shafts. |
| T / TD / TK / TDMK | Large-scale Synchronous Motors | High Voltage | Large capacity | Mining mills, reciprocating compressors, continuous heavy-duty processing. |
| Z2 / Z4 / Z | Industrial Medium/Large DC Motors | Custom DC Voltage ratings | Extrusion machines, paper-making rollers, steel rolling mills, high-precision marine drives. |









Procuring high-capacity 3-phase motors represents a major capital expenditure requiring systematic analysis of multi-dimensional engineering metrics. Global sourcing teams must prioritize overall system reliability alongside energy lifecycle economics.
Standard off-the-shelf motors often fall short of meeting specialized facility constraints. Sourcing managers require direct control over physical configurations: customizable shaft heights, non-standard extension diameters, dual-shaft layouts, custom terminal box mountings (left, right, or top-aligned), and integration of auxiliary cooling units (e.g., blower units or heat exchangers).
Matching the protective ratings and cooling methods to the deployment environment is critical. We provide sealing configurations up to IP55, IP56, and IP65. Cooling schemes are tailored precisely to site constraints, using IC411 (self-fan cooled), IC611 (air-to-air heat exchanger), or IC81W (water-cooled), ensuring optimal heat dissipation in any climate.
Transient voltage spikes and high harmonic distortions from modern VFD systems demand resilient insulation. The integration of high-grade Class F and Class H insulation materials, supplemented by rigorous double VPI processes, prevents premature dielectric degradation and extends the motor's operating life.
Crusher drives and ball mills require high starting torque and are subject to continuous overload conditions. Our TDMK synchronous motor line provides precise torque profiles combined with power factor correction capabilities, improving the electrical efficiency of the entire site grid.
Safety is critical in petrochemical settings. Our flameproof (YBX3/YBX5) and dust-ignition proof (YFB3) series feature cast iron structures, flameproof enclosures, and robust seals. They prevent internal sparking from igniting ambient atmospheres, complying with international hazardous area classifications.
For primary ventilation and boiler feed pumps, continuous operation is mandatory. Our high-voltage YKK and YKS series deliver excellent reliability, utilizing optimized stator/rotor geometries to lower overall sound output and reduce structural vibrations.
By matching customized mechanical and electrical specifications to target industrial sectors, SIMO helps operations reduce downtime and lower the Total Cost of Ownership (TCO).
Our manufacturing practices comply with demanding international standards. LITESIMO products carry global certifications, ensuring smooth local regulatory approval, import clearance, and site commissioning.
Our production facilities maintain ISO9001 Quality System Certification, confirming rigorous quality control at every stage from raw material selection to core winding and final electrical load testing. Our motors conform to European CE directives, US UL listings, and Russian GOST standards, enabling deployment across diverse regulatory jurisdictions.
Additionally, specialized safety compliance certificates are maintained for explosion-proof applications, ensuring our mining and chemical motors meet stringent hazardous environment regulations.
Beyond supply chain logistics, LITESIMO provides comprehensive technical documentation, detailed mounting schematics, lubrication guidelines, and engineering consulting. Our global sales networks and service points offer prompt technical support, assisting you from initial design consultations to on-site commissioning.
















Looking to the future, LITESIMO is focused on upgrading motor technology through three primary strategic initiatives:
Developing high-voltage motors designed to plug directly into higher voltage distribution networks without step-down transformers. This eliminates transformer losses and simplifies overall substation architecture.
We are researching amorphous alloy materials to replace traditional steel laminations in specialized motor applications, aiming to reduce stator iron losses and achieve efficiency gains beyond conventional IE5 benchmarks.
Integrating permanent magnet materials with three-phase squirrel-cage configurations. This hybrid design allows motors to start as line-start induction machines and transition to high-efficiency synchronous operation under load.
Find answers to common technical and logistical questions asked by procurement teams and field engineers during the motor selection process.
Wound rotor motors allow you to connect external resistance to the rotor circuit via slip rings. This design enables high starting torque with low starting currents, making them suitable for starting high-inertia loads like ball mills or heavy crushers without overloading your electrical grid.
Upward of 90% of a motor's lifecycle cost comes from electrical consumption rather than the initial purchase price. Upgrading to IE5 ultra-premium efficiency systems can lower energy losses by more than 30% compared to standard motors, allowing industrial operations to recover their investment quickly through reduced energy utility costs.
VFDs introduce high-frequency voltage spikes (dv/dt), which can stress insulation and cause bearing currents that lead to pitting. To counter this, our variable-frequency motors (YVFE3/YJP series) feature reinforced Class F/H insulation, vacuum pressure impregnation (VPI), and insulated bearings to protect against electrical erosion.
Please provide key technical parameters including: rated power (kW), input voltage, frequency (50/60 Hz), target speed (RPM), mounting style (horizontal B3, vertical V1, etc.), ingress protection level (IP55/IP56), ambient environment conditions, and any specific dimensional constraints for the shaft extension or terminal box.
Every motor undergoes a complete battery of factory tests prior to dispatch, including insulation resistance measurements, winding resistance checks, no-load operations, vibration analysis, and overspeed tests. Type test reports and certificates can be provided upon request for high-voltage and specialized custom machines.
Browse our extended line of AC/DC motors, heavy-duty mining systems, and variable frequency motors designed to meet your precise operational requirements.