Explore Simo's cutting-edge three-phase induction, explosion-proof, and ultra-high efficiency medium-to-high voltage motor lineup.
Xi’an Lite SIMO Motor Co., Ltd. stands as a cornerstone in the global electromechanical arena, ranking as a premier state-level machinery enterprise in China. Specially tasked with engineering large and medium-sized, high/low voltage AC and DC motors, synchronous machines, and robust explosion-proof variants, Simo has bridged the gap between raw power and precision engineering.
We offer integrated solutions extending from motor design, precision mechanical processing, structural mold engineering, assembling, and system optimization. By prioritizing E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) and optimizing for information gain, this document provides key industrial insights, technologic roadmap trajectories, and detailed specifications for global engineers, procurement departments, and system integrators.
A legacy that mirrors China's industrial modernization, continuously driving mechanical innovation across six decades.
Simo Motor established and steered by the central government, setting the foundation for national heavy industry motors.
Strategic migration of assets and personnel to our expansive new manufacturing hub in Xi'an City, Shaanxi.
Official rebranding as Xi'an Motor Factory after successful multi-factory acquisitions and structural integration.
Successful restructuring from a state-owned factory into a highly efficient and modern limited liability company.
Establishment of the SIMO Motor Group, expanding our footprint with 14 specialized subsidiaries.
Move to the high-tech, digitally-enabled and eco-optimized modern production plant in Xi'an Economic Zone.
Rebranded to Tech Full Simo Motor, optimizing global exports and developing custom medium/high-voltage platforms.
Positioned as one of the elite high-voltage, explosion-proof, and DC motor manufacturers globally, pioneering smart-connected electric drivetrains.
Covering 34 major series, 1,800 varieties, and over 19,500 distinct configurations, ranging from 0.35kW to 25,000kW.
Pioneered by the YX, YXKK, and YXKS series. Optimized for maximum electromagnetic efficiency, utilizing advanced insulation and structural heat-exchanger designs. Available in voltage configurations up to 10kV to support massive utility fans, compressors, and pipeline pumps.
The YR, YRKK, and YRKS series wound rotor (slip-ring) motors provide high starting torque with low starting currents. Extremely critical for starting heavy load machinery such as ball mills, large-scale crushers, and mine hoists.
Designed for environments classified under ATEX and IECEx, including the YBX3, YBX4, YBX5 low/high voltage motors and YBK3 flameproof underground coal mining systems. Features dust explosion protection (YFB3/YFB4 series).




| Motor Series | Voltage Range | Power Output (kW) | Cooling Method | Primary Industrial Applications |
|---|---|---|---|---|
| YX / YXKK / YXKS | 6kV - 10kV (Up to 13.8kV) | 160 kW - 25,000 kW | IC611 (Air-to-Air) / IC81W (Water) | Centrifugal Pumps, Turbo Blowers, Compressors, Power Station Fans |
| YR / YRKK / YRKS | 380V - 10kV | 160 kW - 15,000 kW | Slip ring (Wound Rotor) IC01/IC611 | Ball Mills, Mine Crushers, Sugar Shredders, Heavy Winches |
| YE3 / YE4 / YE5 | 380V / 660V / 1140V | 0.55 kW - 1,000 kW | IC411 Totally Enclosed Fan Cooled | General Industry Machinery, Conveyors, Food Processing, Hydraulic Pumps |
| YBX3 / YBX4 / YBX5 | 380V - 10kV | 0.75 kW - 3,150 kW | Flameproof (Ex d IIC T4 Gb) | Petrochemical Refining, Chemical Processing plants, Gas Extraction |
| Z2 / Z4 / Z Large DC | 110V - 1000V | 0.55 kW - 5,000 kW | IC06 / IC17 / IC37 / IC86W | Metal Rolling Mills, Extruders, Cable Machinery, Marine Thrusters |
Our ongoing commitment to Research & Development, highlighting our engineering innovations aimed at achieving carbon neutrality and digital integration.
Through advanced electromagnetic simulation (FEA), we are minimizing stator copper losses and eddy current losses. The development of the YE5 Ultra-Premium Efficiency series sets a new benchmark in three-phase induction performance, yielding up to 25% lower energy waste compared to standard motors.
Future-proofing high-voltage equipment means eliminating unplanned downtime. Our smart-connected motors feature embedded temperature (PT100), vibration, and acoustic emission sensors. By communicating with centralized cloud platforms, Simo motors feed operational telemetry into AI models to predict bearing fatigue and insulation degradation weeks before a fault occurs.
Our proprietary Vacuum Pressure Impregnation (VPI) process relies on solvent-free, high-polymer resins that are polymerized at strict temperatures. This results in void-free stator windings that resist chemical ingress, moisture, and corona erosion. By adopting non-VOC (volatile organic compound) materials, we are aligning our heavy manufacturing processes with carbon-neutral targets.
The global industrial drive market is highly sensitive to lead times and material price volatility. Sourcing from Simo Motor in Xi'an, China, offers critical supply chain advantages:




Simo motors are verified for performance, safety, and operational reliability by leading international certification bodies.
Through strict adhesion to quality assurance systems, SIMO has obtained ISO9001 Quality System Certification, EU "CE" markings, US "UL" approvals, and Russian "GOST" certifications. Our products run seamlessly in electricity, coal, petroleum, mining, metallurgy, railway, chemical, and marine defense sectors.
















How our custom-built drive solutions empower extreme industrial operations globally, from underground deep mines to high-pressure oil fields.
In deep underground mines and vast open-pit operations, equipment starting conditions are brutal. Simo YRKK Wound Rotor High-Voltage Motors are extensively deployed in primary crusher and massive belt conveyor systems. By utilizing external resistor banks connected to the slip rings, these motors achieve maximum starting torque without stressing the municipal electric grid.
Additionally, the flameproof YBK3 and YBX4 series provide explosion containment for coal mine shaft ventilation, protecting personnel against methane gas hazards.
Volatile atmospheres demand absolute containment. Our YFB3/YFB4 Dust Explosion-Proof and YBX3/YBX5 Ex-proof motors drive heavy-duty reciprocating gas compressors and high-volume fluid pumps.
Each explosion-proof joint path is machined to tight tolerances under stringent ISO standards, guaranteeing that even in the event of an internal electrical failure, the surrounding volatile petrochemical gas is not ignited.
Thermal power stations and water treatment plants require continuous duty (S1) motor systems with absolute uptime. The YKS Series (with liquid-to-air cooling) and YKK Series (with air-to-air cooling) are the workhorses of circulating water pumps, boiler feed pumps, and flue-gas desulfurization fans.
Their high-efficiency designs reduce electricity usage, helping operators lower their carbon footprint.
Bridging Chinese manufacturing power with local engineering standards and rapid field deployment.
We customize electric drives to comply with regional codes such as Europe's CE safety directives, North America's NEMA and UL specs, and South America's local energy criteria. Every motor shipped is accompanied by precise dimensional prints, electrical schematics, and load curve profiles.
Simo partners with mechanical repair shops and engineering firms across Southeast Asia, the Middle East, Eastern Europe, and Central America. This partner ecosystem guarantees access to OEM spare parts, including bearings, brush gears, slip rings, and RTD modules.
For critical installations, our senior factory engineers provide remote or physical support for laser shaft alignment, soft starter integration, initial startup lubrication verification, and diagnostic baseline vibration mapping.
Answers to technical questions frequently raised by project engineers, maintenance managers, and procurement leads.
Explore Simo's explosion-proof mining drives, slip ring units, and large frame AC/DC solutions.