Engineered and manufactured in China to meet the rigorous demands of global oil, gas, chemical, and mining applications.
In hazardous environments containing volatile gases, flammable vapors, or combustible dust, standard electric motors represent a significant explosion hazard. Arcs produced during normal switching, electrical faults, or the high surface temperatures of running motors can act as powerful ignition sources. Understanding the structural dynamics of explosion protection requires aligning motor engineering directly with international standards set by the International Electrotechnical Commission (IEC).
IEC 60079 Series establishes the unified global standard for design, selection, and testing of electrical equipment in explosive atmospheres. These protocols distinguish between several critical protection mechanisms:
For operations crossing global jurisdictions, ensuring that your China-based IEC explosion-proof motor manufacturer strictly complies with modern certification bodies is vital. Below is the framework of regulatory parameters that SIMO Motor meets or exceeds:
| Certification | Standard Reference | Key Application Zone |
|---|---|---|
| IECEx | IEC 60079-0/1/7 | Global Harmonized Markets |
| ATEX | EN 60079-0/1 | European Union Union Harmonization |
| UL / CSA | UL 674 / CSA 22.2 | North American Division/Class Scheme |
| GOST-R/TR CU | GOST 31610 / EAC Ex | Eurasian Economic Union |
Xi’an Lite SIMO Motor Co., Ltd is an electric company, main enterprise specializing in the manufacturing of large/medium-sized, high/low voltage AC motors, DC motors, synchronous motor, and explosion-proof motor in the Chinese mechanical industry. SIMO is a comprehensive manufacturing and service supplier of motor design, manufacturing, mechanical processing, mold making, and assembling.
The Company ranks TOP in China’s motor industry as to its scale of production, and has maintained a fast-growing development trend for consecutive years. Leveraging its long-standing machinery infrastructure, advanced design simulations, and automated assembly plants, SIMO guarantees the structural integrity needed to safeguard high-risk oil and gas sites globally.
Operating out of historical engineering centers in Xi'an, Litesimo integrates heavy machining, rotor balance calibration, high-voltage insulation treatment, and severe-duty performance diagnostics under one unified manufacturing ecosystem.
The Company was founded in 1955 originally and now has more than 60 years history of motor manufacturing and selling.
The registered capital is 21.5 million RMB. SIMO has 3 manufacturing factories, one subsidiary factory, with fixed assets of 380 million RMB and more than 1,172 sets of advanced equipment. Our heavy-duty facilities permit custom casting, CNC machining, automated winding, vacuum pressure impregnation (VPI), and extensive type-testing protocols inside specialized acoustic and high-power test centers.
Our human capital includes more than 1,200 employees, and more than 260 technical engineers, including 21 senior engineers and 15 expert engineers. This core group focuses exclusively on electric motor R&D, magnetic field optimization, and safety certifications for flammable dust environments.
A inside look at the scale of our machining centers, testing bays, and premium heavy-duty products.
Over 34 major series, 1,800 varieties, and 19,500 distinct specification configurations ranging from 0.35kW to 25,000kW.
Our expansive production lines are split into distinct electric motor variants optimized for efficiency, safety, and durability under varied input voltage lines and torque thresholds:
YX, YXKK, YXKS Series: Optimized for high-voltage, high-efficiency induction applications. Built for pumps, ventilators, and compressor units. Additionally features YR, YRKK, YRKS series wound-rotor high-voltage motors designed for heavy-load starting applications like mining mills.
YE3, YE4, YE5 Series: Low voltage asynchronous motors meeting IE3, IE4, and Ultra-Premium IE5 energy efficiency rankings. Includes YVFE3, YVFE4, YVFE5 series variable-frequency speed-regulating motors developed for precise speed controls across continuous industrial processes.
YBX3, YBX4, YBX5 Series: Flameproof low and high-voltage three-phase asynchronous motors designed for hazardous gas zones (Zone 1, Zone 2) and dust locations. Built in full conformance with IEC 60079 parameters to guarantee containment of ignition sources within the structural frame.
T, TD, TK, TDMK Series: Large size three-phase synchronous motors designed for heavy milling operations, fan drives, and reciprocating compressors. Integrated with custom excitation panels to provide leading power factor correction features inside industrial power grids.
TFW350-5000KW Series: Brushless, robust synchronous alternators engineered for integration with diesel, steam, and gas turbines. Delivering exceptional voltage stability and dynamic transient response parameters under extreme operating conditions.
Z2, Z4 and Z Series: Medium/large-scale Direct Current machines providing continuous torque across broad speed spectra. Perfect for steel rolling mills, paper machinery, rubber processing, and cable extruders where variable-speed precision is key.
Combining structural safety, cost efficiency, and advanced mechanical processing on a global scale.
Modern heavy industries—such as petrochemical refinement, marine gas platforms, and deep underground coal mines—operate under extremely strict risk management protocols. Procurement officers demand explosion-proof motors that balance robust casing designs with reasonable price-points.
China-based IEC motor manufacturers like SIMO offer substantial benefits over traditional Western manufacturers. Because China possesses the most integrated supply chain for rare-earth magnets, high-grade silicon steel sheet laminations, and premium grey cast iron foundry facilities, we can drastically reduce raw material delivery lead times.
Additionally, the localization of massive precision mechanical tooling, automated high-speed punching presses, and large-scale stator assembly lines permits significant economies of scale, passing the cost savings directly down to the global procurement divisions.
For explosion-proof systems, structural integrity cannot be compromised. Chinese manufacturing sites conform directly to the stringent inspection processes required by international certifying bodies:
SIMO has successfully passed ISO9001 Quality System Certification, EU "CE", US "UL", Russian "GOST", and other global criteria.
SIMO electric motors are widely applied in electricity, coal, petroleum, mining, metallurgy, railway, transportation, chemical industry, agriculture, water economy, aviation, navigation, and high technologies, and other areas in China and abroad.
Providing customized mechanical power units tailored to specific high-risk, volatile industrial scenarios.
In environments containing hydrocarbon gases (Group IIA, IIB, IIC), our YBX3 and YBX4 flameproof series provide robust containment. Specially designed to drive high-capacity centrifuges, oil transfer pumps, and large pipeline ventilation fans without risking flashpoint ignition.
Coal mines face simultaneous threats from volatile methane gas and combustible coal dust. The YBK3 and YFB3 series are built with cast-iron frame designs, heavy-duty protective cable entry glands, and specific dust-tight sealing systems to drive conveyor belts and ventilation fans safely.
Chemical synthesis processes release aggressive gases and corrosive vapors. Our custom coating options and IP66 stainless hardware packages protect motor windings and frames from environmental decay, maintaining the explosion-proof properties over years of continuous operations.
The global explosion-proof motor market is shifting rapidly due to environmental regulations and the development of digital, smart factories. Three primary trends define this progression:
Get answers to common queries regarding IEC explosion-proof classifications, technical parameters, and procurement.
Discover our complete line of heavy duty industrial motors, excitation systems, and soft-start controllers.
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