Explore our elite range of high-performance electric motors engineered for industrial-grade applications, heavy machinery, and explosive environments.
Xi’an Lite SIMO Motor Co., Ltd is an electric company and a main enterprise specializing in the manufacturing of large/medium-sized, high/low voltage AC motors, DC motors, synchronous motors, and explosion-proof motors in the Chinese mechanical industry.
As a comprehensive manufacturing and service supplier, SIMO covers the entire ecosystem of motor design, mechanical processing, mold making, assembly, and testing. SIMO ranks TOP in China’s motor industry as to its scale of production, and has maintained a fast-growing development trend for consecutive years, delivering premium industrial solutions globally.
Founded in 1955 originally, SIMO has more than 60 years of history in high-end electric motor manufacturing and selling, establishing a legacy of safety and precision.
The registered capital of SIMO is 21.5 million RMB. Our facilities boast 3 specialized manufacturing factories and 1 subsidiary factory, spanning massive square footage with fixed assets amounting to 380 million RMB.
Our production floor houses more than 1,172 sets of advanced equipment, allowing us to maintain extreme precision in balancing, VPI impregnation, and explosion-proof pressure testing.
With more than 1,200 employees, our talent pool features over 260 technical engineers, including 21 senior engineers and 15 expert engineers specialized in explosive gas atmospheres and medium voltage isolation systems.
Understanding the engineering challenges of deployment in hazardous atmospheres, volatile environments, and heavy-duty grid applications.
Modern commercial industrial setups demand absolute reliability. In petro-chemical, mining, and oil refineries, motors are subjected to voltage surges, corrosive gases, and thermal stress. High and Medium Voltage Ex motors (such as YBX3, YBX4, and YFB3 series) deliver explosive gas resistance while maintaining high operational efficiency (IE3, IE4, IE5 standards). They prevent ignition by using robust structural shells designed to withstand internal explosion pressures.
OEM manufacturers around the world look for standardizations to minimize system downtime. The shift towards Variable Frequency Drives (VFD) speed-regulated setups requires insulation structures capable of handling high-frequency voltage spikes (dV/dt). SIMO's comprehensive custom medium voltage DC motors, synchronous generators, and variable-frequency AC motors comply with worldwide voltage patterns (ranging from 3kV to 11kV) to ensure smooth integration into grids.
Industrial safety requires absolute compliance with local regulations. Our explosion-proof motor product lines carry standard certifications: ISO9001 Quality System Certification, EU "CE", US "UL", and Russian "GOST". Operating in high-risk zones, such as deep-well coal mines and dust-concentrated agricultural sectors, demands customized local support. We assist our clients in technical audits, commissioning, and system maintenance.
As energy conservation policies tighten worldwide, SIMO is driving next-generation power technology forward by designing Ultra-Premium Efficiency (IE5) motors. We are actively expanding the power ranges up to 25,000 kW and incorporating digital twins for online status tracking.
We supply a vast catalog of industrial electric motors, catering to all major global operations and high-end machinery configurations.
SIMO's R&D and manufacturing covers all types of electric motors. Our portfolio includes 34 major series, over 1,800 varieties, and more than 19,500 individual specifications. The power capacity ranges from a compact 0.35 kW up to an ultra-heavy 25,000 kW.
Our primary motor systems comprise the following major models:
Our electrical motor units are operating globally under extreme thermal conditions, marine environments, and hazardous chemical atmospheres.
Every SIMO motor is certified to meet leading safety and quality standards, including EU CE, US UL, Russian GOST, and ISO9001.












Find authoritative answers to common technical, compliance, and procurement questions regarding our Medium Voltage Ex Motors.
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