Xi’an Lite SIMO Motor Co., Ltd is an electric machinery pioneer and a major key enterprise specializing in the design, engineering, and manufacturing of large/medium-sized, high/low voltage AC motors, DC motors, synchronous motors, and specialized explosion-proof electric motors in the Chinese machinery industry.
As a comprehensive system supplier, SIMO integrates motor design, advanced mechanical machining, high-precision mold manufacturing, quality-controlled winding assembly, and digitalized testing under one roof. The company ranks at the absolute forefront of China’s motor sector regarding scale of production, technological reserves, and consecutive high-growth global export metrics.
SIMO Motor established and led by the Chinese government to address key machinery demands during the early industrialization era.
Relocated to a modern, custom-designed manufacturing plant in Xi'an city, establishing the central hub for national heavy industry motor designs.
Renamed to Xi'an Motor Factory following strategic mergers and system integrations, enhancing capabilities in high-voltage three-phase motor engineering.
Reformed into a modern limited liability company from a state-owned enterprise, bringing agile management and global sales structures to the forefront.
SIMO Motor Group established, unifying 14 specialized subsidiaries under a synchronized corporate structure focused on complete industrial machinery automation.
Moved to the newly constructed, state-of-the-art high-tech industrial park, integrating advanced processing equipment and clean-room winders.
Transitioned brand identity to Tech Full Simo Motor, optimizing global logistics and initiating international compliance frameworks like CE, UL, and GOST.
Consistently advancing as a world-class electric motor manufacturer, integrating Internet of Things (IoT) monitoring, AI-driven CAD designs, and carbon-neutral green technologies.
The global industrial landscape is undergoing a massive transformation, driven by two overarching forces: the urgent transition towards carbon neutrality and the accelerating adoption of heavy industrial automation. At the heart of this global shift lies the large electric motor. Responsible for consuming over 45% of global electrical energy, the efficiency, reliability, and technical configuration of industrial motors are crucial to operational profitability and environmental compliance.
In sectors such as mining, power generation, wastewater management, chemical refining, and metallurgy, electric motor failure carries high downtime costs. Historically, buyers prioritized low initial capital expenditures (CapEx) when purchasing large electric motors. However, in the modern landscape, lifecycle operating expenditures (OpEx)—where energy consumption accounts for 90-95% of a motor's total cost—have fundamentally altered procurement methodologies.
Industrial organizations now calculate Total Cost of Ownership (TCO) with high precision. By choosing high-efficiency lines, such as the YE5 IE5 ultra-premium efficiency series, heavy industry facilities can recoup premium capital investments within short operating timeframes. This global reality positions manufacturing powerhouses like Tech Full Simo Motor as critical partners for engineering and procurement firms globally.
Standard IEC 60034-30-1 defines efficiency classes for single-speed, three-phase cage induction motors. The rapid migration from IE3 (Premium Efficiency) to IE4 (Super Premium) and IE5 (Ultra Premium) represents a major shift in motor design. Achieving IE5 efficiency levels requires reducing stator winding losses, optimizing magnetic rotor flux densities, and reducing windage and friction losses.
Our factory utilizes advanced silicon steel laminations, precise rotor casting, and computerized stator winding designs to manufacture the YE5 series. This ensures compliance with EU Ecodesign directives and provides global operators with a path to reduce carbon tax liabilities and systemic operational overhead.
The YX, YXKK, and YXKS series represent the cornerstone of high-voltage industrial applications. Engineered for 6kV and 10kV configurations, these three-phase asynchronous motors operate with high efficiency and robust thermal margins, driving large pumps, fans, and compressors.
The YR, YRKK, and YRKS slip-ring series are optimized for applications demanding high starting torque with low starting currents. Crucial for heavy-duty ball mills, crushers, and winches, they allow external resistance insertion during startup sequences.
The YBX3, YBX4, YBX5, and YBK3 flameproof motor lines are certified for hazardous environments, including underground coal mines, oil refineries, and chemical processing facilities. They prevent internal sparks from igniting atmospheric gases.
T, TD, TK, and TDMK synchronous motors are designed for high-power, low-speed heavy industrial machinery, such as large reciprocating compressors and mine hoists. They allow for grid power factor correction and optimize reactive power.
The Z2, Z4, and Z series DC motors provide precise speed control and high starting torque. They remain essential for rolling mills, extrusion machinery, paper manufacturing lines, and specialized marine propulsion systems.
The YVFE3, YVFE4, and YVFE5 variable frequency speed-regulating motor lines are designed for integration with VFD converters. They enable precise velocity and torque adjustments, reducing energy waste under fluctuating load demands.
Tech Full SIMO has passed ISO9001 Quality System Certification, EU "CE", US "UL", and Russian "GOST". Our electric motors are deployed globally across mining, metallurgy, petrochemicals, power plants, and municipal water conservancy networks.
















Heavy machinery applications require specific motor configurations to handle environmental factors, load profiles, and grid characteristics. Standard off-the-shelf electric motors often fall short in challenging environments. The sections below outline how SIMO designs custom solutions for key global industries.
Underground coal mining environments present constant ignition risks due to suspended coal dust and methane gas release. The YBK3 and YBX3 flameproof motors are designed to contain internal explosive combustion within the motor frame, preventing external ignition.
These motors feature robust cast-iron structures, reinforced flameproof joints, and specialized ingress protection (IP55 or IP66). In deep mining extraction, where continuous ventilation is critical, SIMO's variable frequency explosion-proof systems drive massive axial fans. This maintains airflow rates while adjusting speed to match actual gas concentration measurements.
Metallurgical plants require motors capable of managing severe shock loads, high starting torque, and rapid acceleration/deceleration cycles. Steel rolling mills utilize both Z series DC motors and variable frequency AC motors. DC motors remain popular in these applications because of their precise torque control and wide speed regulation range.
SIMO’s engineering team integrates high-grade mica insulation systems with vacuum pressure impregnation (VPI) resins. This design ensures protection against conductive iron dust, high ambient temperatures, and the mechanical vibration typical of steel production.
Large fluid transport systems, municipal water supplies, and high-pressure oil pipelines require continuous pump operation. The startup phase of multi-megawatt pumps can create voltage fluctuations on local power grids.
By pairing SIMO YXKS high-voltage water-cooled motors with custom high-voltage soft-start state cabinets, municipal water facilities protect both mechanical and electrical infrastructure. This setup limits starting currents to 2.0 to 2.5 times the nominal current, minimizing grid disturbance and mechanical wear on the water pipelines.
Petrochemical facilities operate continuously in environments containing corrosive gases and volatile hydrocarbons. Motors in these settings require both explosion protection and resistance to outdoor elements.
Our YBBP series low-voltage explosion-proof variable frequency motors are designed to operate under variable loads in these zones. They power main transfer pumps and high-pressure mixers, providing reliable performance in volatile chemical environments.
As industrial operations become more digitalized, electric motors are evolving into connected, intelligent components within industrial IoT ecosystems. SIMO’s technology roadmap prioritizes several key areas to meet the changing demands of global industry: