Precision engineered electrical machinery built to exceed global regulatory parameters and severe industrial demands.
Founded on a heritage of precision engineering, Xi’an Lite SIMO Motor Co., Ltd stands as a premier enterprise in the Chinese mechanical industry. We specialize in the design, manufacturing, and supply of large and medium-sized, high and low voltage AC/DC motors, synchronous motors, and high-security explosion-proof motors.
As a comprehensive systems provider, SIMO integrates motor design, advanced machining, custom mold fabrication, precision assembly, and digital testing. Ranking consistently at the top of China’s heavy industrial motor sector, our manufacturing scale, continuous innovation, and quality control systems support major industrial installations globally.
Uncompromising capability built over six decades of mechanical manufacturing excellence.
A timeline of industrial leadership and technological evolution.
SIMO Motor is established and led by the national government to lay the foundation for modern heavy industrial motor manufacturing in China.
Relocated to the newly constructed, dedicated industrial production plant in Xi'an City to expand heavy machinery production lines.
Renamed to Xi'an Motor Factory following series of strategic acquisitions, integrating regional electrical equipment factories.
Successfully reformed from a state-owned enterprise into a modern limited liability company, accelerating commercial agility.
SIMO Motor Group is established, expanding to manage 14 dedicated subsidiaries across the industrial supply chain.
Moved to a state-of-the-art, high-tech advanced plant, introducing automated winding, VPI insulation, and digital testing bays.
Officially rebranded as Tech Full Simo Motor, optimizing global distribution networks and modern corporate management.
Pioneering the development of IE4 and IE5 Super/Ultra-Premium efficiency motors, supporting global carbon neutrality initiatives.
How our engineering architecture minimizes internal motor losses to achieve energy-saving performance.
In modern industrial applications, electric motor systems consume over 60% of all industrial electricity. Transitioning to IE4 (Super Premium Efficiency) and IE5 (Ultra-Premium Efficiency) standards is no longer merely a regulatory compliance check—it is a critical driver of operational profitability and environmental sustainability. At Xi'an Lite Simo, we employ a multi-faceted design methodology to systematically address the five key zones of energy dissipation in induction and synchronous machines:
By utilizing cold-rolled, high-permeability, non-oriented silicon steel sheets (0.35mm to 0.5mm thickness), we significantly reduce hysteresis and eddy current losses. Optimized stator slot designs increase slot-fill factor, lowering overall coil resistance.
Our IE4/IE5 induction ranges feature high-purity die-cast aluminum or fabricated copper rotors. Copper rotors, though metallurgically complex to cast, lower I²R rotor losses by up to 40% compared to traditional aluminum, boosting efficiency across load points.
Using 3D Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD), we design low-drag cooling fans and optimized frame rib structures. This maximizes thermal dissipation while reducing windage friction losses.
Beyond traditional squirrel-cage induction motors, Tech Full Simo is actively advancing its technical roadmap toward Permanent Magnet Synchronous Motors (PMSM) and Synchronous Reluctance Motors (SynRM). By eliminating rotor current losses altogether, Simo's PMSM systems achieve IE5 levels easily, offering high torque density and exceptional efficiency even during partial-load operations (from 25% to 120% load).
How our integrated factory ecosystem delivers cost-performance and on-time shipment security.
Operating out of our advanced high-tech facility in Xi'an, Tech Full Simo maintains an ecosystem built on the principles of **Factory 4.0**. With over 1,172 sets of specialized manufacturing equipment, our production workflow is designed to maintain consistent build quality while keeping lead times short.
Our key factory infrastructure includes:
By keeping design, casting, machining, insulation, and performance testing entirely in-house, we eliminate intermediate supply chain delays and protect our clients from cost fluctuations in raw components.
In-house manufacturing capabilities showing precision stator assembly and test preparation.
High-efficiency and high-voltage motors designed for heavy industrial processing plants.
Our heavy-duty slip ring (YR, YRKK) and high-voltage squirrel cage (YXKK) motors operate under dusty, high-vibration conditions to power crushers, conveyors, grinding mills, and ventilation fans. For coal mines, the flameproof YBK3/YBX3/YBX4 series provide spark-free operation in methane-rich environments.
With precise explosion-proof design (YBX3, YBX4, YBX5, YFB3, YFB4 series), Simo motors provide reliable operation in gas group IIA/IIB/IIC zones. VPI insulation protects windings from corrosive petrochemical vapors and high humidity.
Simo high-voltage induction motors (YKS, YKK, Y) drive high-volume water pumps, municipal pipelines, and heavy-duty steel rolling mills. Synchronous motor options (T, TD, TK) allow for power factor correction, stabilizing plant electrical networks.
For ball mills, kilns, and high-impact fans, our medium and high-voltage motors deliver high starting torque and thermal capacity to withstand cyclic overload conditions, preventing unplanned production stops.
Essential engineering parameters required when designing and ordering high-power OEM industrial motors.
Purchasing heavy electrical equipment requires thorough technical alignment. Procurement managers and consulting engineers must evaluate physical, mechanical, and electrical interfaces to ensure correct integration. Below is the technical checklist our engineering division utilizes to analyze incoming OEM inquiries:
- Nominal Voltage: Low Voltage (380V, 400V, 690V) to High Voltage (3kV, 6kV, 10kV, 11kV).
- Frequency: 50Hz, 60Hz, or Variable Frequency (VFD fed).
- Insulation: Class F (minimum) with Class B temperature rise limit for thermal margins.
- Mounting Configurations: Horizontal Foot-mounted (IM B3), Flange-mounted (IM B35), or Vertical Shaft down (IM V1).
- Bearing Systems: Sleeve bearings for heavy industrial systems; insulated bearings to prevent VFD shaft currents.
- Protection Class: IP54, IP55, IP56, or IP65 for dust/moisture protection.
- Cooling Methods: IC411 (self-fan cooled), IC611 (air-to-air heat exchanger), or IC81W (water-cooled) for tight space requirements.
Verified standards for global installation and operation.
Tech Full Simo operates under an ISO 9001 certified quality management system. Our motor products are tested and certified to meet regional requirements, including European Union CE, North American UL, Russian GOST/EAC, and international explosion safety standards like ATEX and IECEx.
Technical details from our engineering office regarding super premium efficiency motors and customization options.
An IE4 Super Premium Efficiency motor typically exhibits 15% to 20% lower losses than an equivalent IE3 motor. The transition to IE5 (Ultra-Premium Efficiency) reduces losses by an additional 20% relative to IE4. In a 250 kW continuous-duty pump application, shifting from IE3 to IE4 can save thousands of kWh annually, quickly offsetting the initial capital expenditure of the motor upgrade.
Variable Frequency Drives (VFDs) generate high-frequency common-mode voltage, which induces shaft-grounding currents. Without insulation, these currents discharge through the bearings, causing electrical discharge machining (EDM) pits and premature bearing failure. Tech Full Simo integrates ceramic hybrid bearings or insulated sleeve bearings on the non-drive end of our YVFE3/YVFE4/YVFE5 series to block this electrical pathway.
Our medium and high-voltage motors (YXKK, YRKK, YKS) come with a standard 12-month operational warranty, extendable up to 24-36 months based on application demands and commissioning support. First-level inspection (bearing grease check, insulation resistance check) is recommended every 3,000 to 5,000 running hours, depending on operating conditions.
We configure custom cooling systems based on installation conditions. For standard industrial plants, IC411 (rib cooling with external fan) is typical. For high ambient temperatures or confined sites, we use IC611 (air-to-air cooling) or IC81W (water cooling). We embed multiple PT100 temperature sensors in the stator windings and bearings for real-time thermal monitoring.
Standard low-voltage motors are supplied in 30 to 45 days. Large, custom-engineered high-voltage motors, synchronous units, and custom explosion-proof machines require a design phase followed by raw material preparation (like special copper/core steel), typically ranging from 60 to 90 days. We provide engineering drawings and 3D step models for client approval prior to production.
Explosion-proof, variable-frequency, and direct-current motors built for special applications.
Lite Simo