Explore our core engineering portfolio of IEC-compliant high and low voltage industrial motors designed for ultimate performance and reliability.
In the modern industrial layout, safety compliance and operational continuity are the twin pillars of profitable operations. Modern chemical plants, oil refineries, and offshore platforms operate under volatile atmospheres where gas, vapors, and combustible dust present persistent explosion hazards. Designing electric drivetrains for these harsh environments requires a meticulous understanding of IEC standards and thermodynamic isolation methodologies.
As a global partner to major EPCs and industrial developers, Xi’an Lite SIMO Motor Co., Ltd. (LITESIMO) provides custom-engineered OEM solutions that bridge the gap between regulatory stringency and operational efficiency. By leveraging over six decades of advanced mechanical design, our motors guarantee stable performance under high thermal stress and corrosive environments.
From a state-owned pioneering enterprise to a leading mechanical engineering group driving international industrial systems.
Founded in 1955, SIMO Motor has navigated the evolution of electrical machine manufacturing in China and the global stage. Headquartered in the ancient industrial hub of Xi'an, the company ranks in the top tier of China’s motor manufacturing sector. Today, SIMO maintains a robust capital foundation of 21.5 million RMB, managing fixed assets valued at 380 million RMB.
With 3 production sites and 1 auxiliary plant covering over 1,200 employees, our factory features 1,172 sets of high-grade machining and testing machinery. Our R&D department is driven by 260 technical engineers, featuring 21 senior engineers and 15 state-level expert engineers, specializing in customized motor solutions.
Our core capabilities span 34 major product series, over 1,800 varieties, and 19,500 electrical/mechanical specifications, offering a output range from 0.35kW up to 25,000kW. Main production lists include:








Understanding the mechanical and thermal isolation standards defined by IEC 60079 for explosive atmospheres.
Designed to withstand internal explosions of flammable gas mixtures without propagating the ignition outward. Ideal for Zone 1 and Zone 2 application scopes. Features robust cast-iron frames, long joint paths, and minimal flame gaps.
Focuses on eliminating hot spots, sparks, and electrical arcs by using high-quality insulation materials, specialized cable entries, and precise temperature-rise margins during start-up.
Utilizes tight dust-exclusion enclosures (IP65 or IP66 rating) to limit surface temperatures. Specifically engineered to prevent combustible dust clouds (e.g., starch, coal dust, grains) from finding an ignition source.
Industrial motors intended for hazardous areas must align with localized installation codes. While North America traditionally follows the National Electrical Code (NEC) Class/Division framework, Europe and global operations utilize the IECEx / ATEX zone model.
Our OEM motors are built on the IEC standard framework (IEC 60079 series) to allow simple cross-border project design. A Zone 1 gas group classification aligns with Class I Division 1 parameters, whereas Zone 2 operations align with Class I Division 2. By ensuring multi-standard compliance, SIMO allows project developers to utilize unified mechanical designs globally.
Specialized drivetrains optimized for demanding settings in oil & gas, mining, chemistry, and bulk handling.
Refineries and petrochemical pipelines are prone to gaseous atmospheres containing ethylene, hydrogen, or hydrocarbons. For these installations, the YBX4 flameproof motor series provides a reliable solution. Featuring a spark-free terminal box design and heavy-duty frame casting, it mitigates risk in volatile environments.
Underground mines contain flammable coal dust and methane. The YBK3 flameproof motor series is custom-built for conveyors, shearers, and ventilation fans, featuring thick cast-iron construction to withstand mechanical impact and prevent electrical sparking.
Grain silos and agricultural storage units manage dust that can become explosive when mixed with air. The dust explosion-proof YFB3 and YFB4 series restrict external temperatures and use high-grade IP65/IP66 ingress protection to prevent dust entry.
High-volume primary air fans and boiler feed pumps require large-scale high-voltage induction or synchronous motors like the YXKK or TFW series. These are designed for continuous duty (S1), optimized start-up profiles, and compatibility with variable frequency drives.
SIMO maintains rigorous compliance verification systems, securing international accreditations for demanding safety frameworks.
We manage internal production flows under ISO9001 Quality System Certification parameters. Our explosion-proof and standard motor designs carry approvals including European CE, American UL, Russian GOST, and others.












Our vision for next-generation drivetrains focuses on efficiency, smart diagnostics, and safety for demanding applications.
With global energy regulations tightening, our R&D roadmap focuses on expanding our YE5 (IE5) efficiency solutions. Utilizing advanced electromagnetic field simulation software, we minimize rotor loss, reducing operating temperature and carbon emissions.
The integration of Ex-certified vibration and temperature sensors allows for real-time monitoring of bearings and stator windings. By analyzing thermal anomalies and signature vibrations, operators can perform predictive maintenance before failures occur.
As green hydrogen production scales, handling systems require motors certified for gas group IIC. We are upgrading our flameproof enclosures to handle hydrogen gas environments, meeting new industry demands.
Addressing key engineering inquiries regarding classifications, operations, VFD pairing, and maintenance.
Targeted solutions for challenging environments, including heavy duty DC systems, mining designs, and high-efficiency induction drivetrains.