Premium high-voltage, low-voltage, explosion-proof and DC solutions certified for extreme working loads.
Setting the gold standard for heavy mechanical machinery drive systems in China and abroad.
Xi’an Lite SIMO Motor Co., Ltd stands as a prominent pioneer in the mechanical engineering industry, specializing in the manufacturing of large and medium-sized, high and low voltage AC motors, DC motors, high-efficiency synchronous motors, and explosion-proof motors. As a core enterprise in China's industrial equipment sector, SIMO serves as a comprehensive system designer, manufacturing power, and service provider integrating complete machining, mold development, precision assembling, and intelligent testing.
Our company continuously ranks TOP in China’s motor sector regarding production scale, technical capabilities, and global distribution volume. With a deep commitment to energy reduction and reliability, SIMO drive solutions have powered heavy mining, petrochemical pumps, municipal water pipelines, and power plant draft fans globally for generations.
Over 60 years of precision manufacturing, from a regional factory to an international supplier.
Founded originally in 1955, SIMO Motor has accumulated more than 60 years of rich history in motor design and sales. The brand represents engineering stability, supporting some of the most challenging infrastructure projects worldwide.
Understanding standards, efficiency classifications, and performance requirements for international heavy industries.
In modern industrial setups, procuring motors that align with IEC (International Electrotechnical Commission) standards is essential to guarantee mechanical compatibility, structural safety, and high performance. System engineers look beyond basic power outputs. They focus on frame dimensions, thermal limits, sound thresholds, and variable frequency drive (VFD) compatibility to prevent premature system failure.
Transitioning from standard IE1 and IE2 units to IE3 (Premium Efficiency) and IE4 / IE5 (Super Premium) ranges. Procurement specialists calculate total cost of ownership (TCO) based on these efficiency grades, as energy consumption makes up over 95% of a motor's lifetime costs.
Explosion-proof ratings like Class I Div 1/2 or Zone 1/2 are crucial for gas pipelines and coal mines. SIMO's YBX3, YBX4, and YBX5 series prevent internal sparks from igniting external hazardous materials, complying with ATEX and IECEx specifications.
Using standard AC motors with variable frequency drives can lead to voltage stress on windings. The YVFE3 and YVFE4 variable frequency motors feature reinforced Class F/H insulation and insulated bearings to eliminate destructive shaft currents.
Providing heavy-duty, high-performance solutions for global infrastructure projects.
In environments with high airborne dust and heavy starting loads, standard motors can experience thermal overload. SIMO's TDMK series synchronous motors and YR/YRKK slip ring high-voltage motors are designed specifically for ball mills and stone crushers. They deliver high starting torque with low starting currents, protecting the electrical grid from voltage drops.
With integrated vacuum pressure impregnation (VPI) insulation, these machines run reliably in cement dust and damp environments, reducing unscheduled downtime.
Pumping volatile chemical products requires motors that can contain flame paths. The YBX4 and YBX5 explosion-proof series utilize heavy, cast-iron ribbed frames that prevent gas ignition. Our advanced thermal design lowers surface temperatures, meeting Ex d IIC T4 Gb requirements.
These motors are widely used in offshore oil platforms, natural gas processing plants, and paint storage facilities. They deliver high runtime efficiency and reliable protection.
Decarbonization, predictive analytics, and next-generation insulation engineering.
As industries pursue net-zero carbon footprints, electric motors have become a primary target for energy efficiency. SIMO Motor is developing high-efficiency systems that align with global environmental standards.
Integrating vibration sensors, bearing temperature probes, and current signature analysis directly into the motor enclosure. Real-time diagnostic data helps identify potential stator imbalances and bearing wear before faults occur.
Using aerodynamic design software to model frame fin distribution. Our current generation of low- and high-voltage motors delivers superior heat dissipation, reducing thermal stress on internal components.
Utilizing high-performance mica tape and epoxy resin systems, processed under high vacuum pressure. This construction method minimizes air voids in slot sections, protecting the motor against electrical discharges.
Tested and verified by international standards agencies for reliable performance.
SIMO has passed ISO9001 Quality System Certification, European Union "CE", United States "UL", and Russian "GOST" certifications. Our electric motors are widely used in power generation, coal mining, metallurgy, transport, railways, chemicals, water conservancy, and aviation sectors worldwide.
















Detailed answers to common engineering, procurement, and maintenance questions.
High-torque DC drives, synchronous milling motors, and dust-ignition-proof motors.