Engineered to secure mission-critical environments. Inspect our selection of premier industrial motors and controller cabinets.
Global industrial growth demands high safety and operational continuity. Modern processing facilities require motors engineered to prevent catastrophic events in explosive environments.
Oil, gas, and petrochemical sectors run continuously, producing volatile gases and vapors. Our flameproof (Ex d) motors, including the YBX4 and YBX5 Series, prevent internal electrical ignition sources from initiating external gas explosions. This ensures consistent operation for heavy pumps, air compressors, and refining equipment.
Underground extraction is exposed to coal dust and atmospheric methane. The YBK3 series flameproof motor is designed for underground coal mines. Built with high-strength cast-iron frames, these systems withstand heavy physical stress and corrosive mine air, driving conveyor belts and ventilation fans safely.
Agriculture, milling, and fine chemicals handle fine organic and synthetic dust. These dust clouds can ignite under high surface temperatures. The YFB3 and YFB4 series dust-ignition-proof motors use IP6X dust-tight seals to isolate the internal motor components, preventing localized thermal buildup from igniting dust layers.
The modern industrial landscape shows a direct correlation between explosion-proof compliance and carbon footprint reduction goals. As international efficiency mandates phase out low-grade motors, selecting the right partner becomes a strategic imperative.
International regulatory structures continue to converge toward safer, more uniform codes. Today, industrial operators must comply with European ATEX directives, the international IECEx system, North American UL/CSA standards, and regional certifications like Russia’s GOST. Purchasing from a factory that designs and certifies motors to all these frameworks allows global engineering firms to simplify their supply chains, reduce equipment variance, and speed up plant commissioning.
Globally, industrial motors consume over 40% of all electric power. This has driven clean energy regulators to require minimum efficiency levels of IE3, IE4, and now IE5 (Ultra Premium Efficiency). Historically, explosion-proof motors lagged behind standard industrial motors in efficiency due to heavy enclosures and seal drag. Modern designs, like our YE5 IE5 series and variable-speed systems, provide both explosive-gas safety and high energy efficiency, lowering operational costs and total carbon footprint.
Founded in 1955, SIMO Motor has over 60 years of history in manufacturing and distributing large, medium, high/low voltage, DC, synchronous, and explosion-proof motors.
Serving as a core pillar of the industrial motor manufacturing sector, SIMO maintains a modern production scale that ranks at the top of the market. Our 21.5 million RMB registered capital and 380 million RMB in fixed assets support operations across three manufacturing facilities and one subsidiary. Over 1,200 employees, including 260 technical engineers, 21 senior engineers, and 15 expert engineers, ensure that every motor leaving our assembly lines meets international performance standards.
SIMO Motor established as a government-led industrial enterprise, laying the groundwork for heavy mechanical manufacturing.
Relocated to a dedicated plant in Xi'an City, expanding manufacturing capacity and engineering teams.
Renamed to Xi'an Motor Factory following acquisitions and integrations, centralizing manufacturing resources.
Reformed from a state-owned factory into a limited liability company, introducing modern corporate management.
SIMO Motor Group established, growing to incorporate 14 specialized subsidiaries across the country.
Moved to a high-tech and advanced facility with modern CNC processing and computerized winding machines.
Renamed to Tech Full Simo Motor, continuously expanding global market reach and high-efficiency motor options.
Our R&D division supports 34 major series, more than 1,800 varieties, and over 19,500 specifications. Power outputs span from 0.35 kW to 25,000 kW, providing solutions for standard and custom requests.
Explosion-proof products require certified quality standards. SIMO has implemented a Quality Management System that has passed rigorous audits for global safety compliance.
Our motors are certified under the ISO9001 Quality System, EU "CE", US "UL", and Russian "GOST" systems. The structural casings, wiring channels, and connection components of our Ex-rated lines are engineered to meet or exceed international safety standards, making them suitable for high-risk operating environments.





Each industrial application requires a specific approach to hazardous area protection. We provide tailored solutions to match local operational demands and environmental factors.
Underground mining operations are subject to shifts in humidity, ambient temperature, and particulate concentrations. Our YBK3 Series features reinforced junction boxes and non-sparking terminal connections to withstand continuous mechanical vibrations while driving underground mine pumps and shearers.
Offshore oil platforms and onshore refineries require protection against salt spray and moisture ingress. Using high-grade sealants and multi-layer protective coatings, our YBX4 and YBX5 Totally Enclosed Fan Cooled (TEFC) motors prevent ambient moisture and corrosive gases from degrading the internal windings.
Silos and food processing plants produce dense clouds of combustible dust. The YFB3 and YFB4 Dust Explosion-Proof Motors feature specialized external heat sinks that prevent surface temperatures from reaching the ignition point of organic dust layers (Class II Div 1 / Zone 21).
The future of heavy-duty drive technology lies in the integration of high energy efficiency, real-time analytics, and protection systems.
Modern process control depends on variable speed operations. Our YBBP Low Voltage Ex Motors and YVFE3 Variable Frequency Drive Motors are designed to run safely across their entire frequency range without overheating. Incorporating insulated bearings and static-dissipative grounding brushes, they prevent electrical discharge machining (EDM) path failures caused by high-frequency VFD switching harmonics.
Starting large induction motors can create major voltage drops and high mechanical stresses. Combining our motors with Custom High Voltage Soft Start State Cabinets limits starting inrush currents and mechanical shocks. Built-in RTD thermal sensors monitor winding and bearing temperatures in real time, alerting control systems of thermal issues before they lead to shutdowns.
Technical references and common queries regarding explosion-proof induction motor integration, efficiency grades, and safety certifications.
Our complete industrial range: low-voltage premium efficiency drives, variable frequency motors, and high-output DC systems.