Within heavy industrial sectors—including chemical processing, petroleum refining, coal mining, marine engineering, and power generation—safety and operational continuity are non-negotiable. Electric motors deployed in these hazardous environments must be robustly engineered to eliminate ignition risks under extreme atmospheric conditions. An Exde motor represents the peak of modern electromechanical safety engineering, combining flameproof (Ex d) and increased safety (Ex e) protection designs to guarantee absolute isolation of high-voltage and spark-prone components from external volatile elements.
Xi’an Lite SIMO Motor Co., Ltd (LITESIMO) has spent decades defining the standards of large, medium, high, and low-voltage electric motors. By focusing on semantic safety requirements and user-intent-driven customizations, SIMO ensures that global procurement managers receive custom engineering solutions that adhere strictly to international safety benchmarks (ATEX, IECEx, UL, CE, and GOST).
Ex d protection is designed to contain any internal explosion within the motor's heavy-duty enclosure. Dynamic joints and flame-paths cool escaped gases down to safe levels before they exit into the external atmosphere, preventing ambient gas ignition.
Ex e design incorporates special mechanical and electrical construction safeguards. It prevents arcs, sparks, or dangerously high temperatures from developing within internal or external components during standard operations.
Crucial for grain storage, cement processing, and coal milling. Dust-tight designs (IP65 or IP66 rating) prevent combustible particles from accumulating inside the casing, eliminating the risk of dust layer ignition.
A typical high-efficiency explosion-proof motor, such as the YBX3 and YBX4 series three-phase induction motors, features precision-machined flameproof joints. The gap width, length, and surface finish of these joints are tightly controlled to cool hot escaping gases. By maintaining extreme tolerances during casting and milling, SIMO's motors isolate internal electrical sparks from explosive atmospheres (including Hydrogen, Ethylene, and Methane gas environments classified under Gas Groups IIA, IIB, and IIC).
For operations involving high voltage systems, such as mine mills or high-power compressor units, synchronous motors like the TDMK series require specialized protection. Using state-of-the-art materials like Class F insulation systems, high-conductivity copper, and advanced stator slot insulation, these motors operate reliably at higher thermal tolerances, offering long-term protection against stator insulation breakdown.
SIMO Motor established and managed by the government, pioneering industrial-grade motor designs in China.
Relocated to a new dedicated manufacturing plant in Xi'an city, scaling up production capacity.
Renamed to Xi'an Motor Factory following strategic industrial acquisitions and integration.
Reformed into a limited liability company from a state-owned factory to drive international market expansion.
SIMO Motor Group established, growing to incorporate 14 specialized subsidiaries across China.
Moved to a state-of-the-art, high-tech manufacturing plant featuring advanced modern machinery.
Officially changed name to Tech Full Simo Motor, aligning corporate branding with high-tech development.
Positioned as a top global motor manufacturer, exporting custom explosion-proof and high-voltage solutions worldwide.
LITESIMO houses over 1,172 sets of advanced equipment, including CNC machining centers, automated coil winding setups, Vacuum Pressure Impregnation (VPI) equipment, and state-of-the-art motor performance testing centers. Our engineering team comprises 260 technical engineers, including 21 senior engineers and 15 expert engineers.
We perform rigorous tests—including load, dynamic balance, temperature rise, and insulation testing—on every motor before shipment. This ensures that every high-voltage AC motor (YKS, YKK, Y2 series) and DC motor (Z2, Z4, and Z series) matches our strict quality metrics.
SIMO has successfully passed the ISO9001 Quality System Certification. Our electric motors conform to international safety regulations, including European CE/ATEX, US UL, Russian GOST, and Chinese CCC certifications.
Purchasing large-scale industrial motors from an OEM manufacturer in China provides substantial competitive advantages. Due to China's highly integrated supply chain, SIMO sources premium raw materials (low-loss silicon steel sheets, high-purity copper wires, and top-grade bearings) directly from local producers. This minimizes material logistics delays and reduces overall manufacturing costs.
Furthermore, China's advanced manufacturing capabilities allow SIMO to produce highly complex, custom motors—such as the YKS 6kV/10kV high-voltage induction series or custom-made TDMK synchronous motors—with shorter lead times compared to North American or European manufacturers. This combination of raw material availability, skilled engineering, and optimized logistics guarantees cost-effective pricing without compromising quality or compliance.
Direct partnerships with domestic steel and copper mills keep raw material costs low and quality high, shielding buyers from sudden price volatility.
With design, foundry casting, coil winding, assembly, and testing conducted under one roof, we eliminate production delays and maintain rigorous quality control.
Located in Xi'an, a major logistical hub, SIMO leverages international rail networks and nearby major ports to ensure reliable, fast delivery worldwide.
Industrial machinery runs on a wide variety of motor configurations. Operating a slurry pump, steel rolling mill, high-pressure water pump, or ventilation fan requires a motor optimized for its specific load profile. For example, steel rolling mills require high torque and variable speeds, which are best served by Z4 series DC motors. Conversely, deep mining operations benefit from TDMK synchronous motors that compensate for reactive power, stabilizing the overall mine electrical grid.
In addition, dust-heavy environments (like flour mills or cement plants) require specialized YFB3 and YFB4 dust-explosion-proof motors. These motors feature robust ingress protection (IP65/IP66) to keep flammable dust out of the electrical enclosure, protecting both equipment and personnel.
Hazardous gas zones require motors that prevent external ignition. The YBX3, YBX4, and YBBP variable-frequency explosion-proof series provide safe operation in chemical plants, oil refineries, and gas fields.
Heavy milling operations require reliable, high-torque starting. TDMK synchronous motors and large YR series wound rotor motors provide the necessary starting torque for grinding mills and crushers.
Lite Simo
