Direct access to our engineered-to-order low and high voltage electrical systems designed for hazardous environments.
Leading the Chinese Mechanical Industry as a Comprehensive Manufacturer of Large, Medium-Sized, High, and Low Voltage AC/DC & Explosion-Proof Motors.
Xi’an Lite SIMO Motor Co., Ltd is an electric company, main enterprise specializing in the manufacturing of large/medium-sized, high/low voltage AC motors, DC motors, synchronous motor, and explosion-proof motor in the Chinese mechanical industry. SIMO is a comprehensive manufacturing and service supplier of motor design, manufacturing, mechanical processing, mold making, and assembling.
The Company ranks TOP in China’s motor industry as to its scale of production, and has maintained a fast-growing development trend for consecutive years. The registered capital is 21.5 million RMB. SIMO has 3 manufacturing factories, one subsidiary factory, with fixed assets of 380 million RMB and more than 1,172 sets of advanced equipment. There are more than 1,200 employees, including more than 260 technical engineers, 21 senior engineers, and 15 expert engineers.
Over 60 years of dedicated motor manufacturing and selling history, laying the foundation for modern Chinese industrial electrical engineering.
SIMO Motor established and led by government.
Moved to the new manufacturing plant in Xi'an city.
Changed name to Xi'an Motor Factory after series acquiring and integrating.
Reformed into a limited liability company from a state-owned factory.
SIMO motor group established, incorporating 14 subsidiaries.
Relocated to the high-tech and advanced new production facility.
Rebranded to Tech Full Simo Motor to target international markets.
Standing strong as one of the best motor manufacturers globally.
Analyzing the convergence of safety engineering, thermodynamic efficiency, and micro-electromechanical sensing in hazardous environments.
Modern low voltage explosion-proof motors rely on advanced cast-iron structures designed to withstand internal explosive pressures without deformation. SIMO's latest engineering uses finite element analysis (FEA) to minimize weight while strengthening the frame, optimizing joint widths, and reducing gap clearances to extinguish flame paths before reaching external atmospheres.
To combat the extreme heat generated inside flameproof enclosures, the industry is transitioning to IE4 and IE5 efficiency ratings (such as our YE4/YE5 and YBX4/YBX5 series). High efficiency directly translates to lower heat losses, lower operating temperatures, and an extended operational lifetime for the motor's insulation system.
Dual-certified motors that cover both gas (Zone 1/2, Group IIB/IIC) and dust (Zone 21/22, Group IIIB/IIIC) are becoming standard. Utilizing double-lip radial shaft seals, IP65/IP66 sealing grades, and non-sparking outer fans, SIMO protects against both flammable gases and explosive dust clouds, common in modern hybrid chemical plants.
Aligning engineering specifications with strategic supply chains for maximum project reliability and compliance.
Procurement teams at international EPC (Engineering, Procurement, and Construction) companies require more than just a motor; they require a risk-mitigated solution. This involves strict documentation systems, complete traceability of casting materials, winding raw materials, and electrical insulation tests.
SIMO's manufacturing framework addresses these issues by offering standardized documentation packets including motor Type-Test reports, dynamic rotor balancing certificates, and chemical composition breakdown sheets. This level of transparency ensures that whether the destination is Europe, the Middle East, or the Americas, the imported motors pass local inspection audits smoothly.
International operations require technical backup that respects local electrical grids. SIMO supplies custom low voltage Ex motors running at 380V, 400V, 415V, 440V, 460V, 480V, and 690V, operating at both 50Hz and 60Hz. Our design integrates PT100 bearing and winding sensors, customized terminal boxes for various cable entries (NPT, metric, PG), and corrosion-resistant marine grade C5-M painting systems.
Spanning from 0.35 kW to 25,000 kW, our manufacturing scope covers every primary industrial application.
A visual showcase of our production floors, advanced testing centers, and engineering assembly lines.
SIMO passed ISO9001 Quality System Certification, EU “CE", US “UL”, Russian "GOST", and so on. Electric motors are widely applied in electricity, coal, petroleum, mining, metallurgy, railway, transportation, chemical industry, agriculture, water economy, aviation, navigation, and high technologies and other areas in China and abroad.












How SIMO is leading the digitalization of hazardous-area powertrains through embedded sensory matrices and edge computing.
Integrating non-invasive, Ex-certified smart sensors onto motor frames to log temperature profiles, high-frequency vibrations, and acoustic emissions. By transmitting data to centralized SCADA systems via wireless protocols, operators can predict bearing degradation, shaft misalignment, and electrical imbalance weeks before they lead to structural failures.
By leveraging advanced CAD and electromagnetic modeling software, SIMO is optimizing stator core laminations to reduce eddy-current and hysteresis losses. Winding geometries are precision-wound to maximize slot-fill factor, reducing internal thermal accumulation and ensuring lower structural temperature rise (Class B temperature rise using Class F materials).
Aligned with global net-zero regulations, SIMO is pioneering eco-friendly motor manufacturing. This includes utilizing 100% recyclable high-grade cast iron and copper alloys, and low-VOC (volatile organic compound) varnishes. The extended lifespan of SIMO motors reduces lifetime material waste, keeping lifecycle carbon footprints as low as possible.
Professional insights from our Senior R&D Engineering Department on selecting, installing, and maintaining explosion-proof motors.
High-output AC and DC machinery engineered to perform under high load profiles and extreme industrial applications.