Explore our industrial high-efficiency AC and DC motors designed to operate reliably in harsh hazardous manufacturing environments.
A comprehensive analysis of safety standards, engineering criteria, and global procurement for critical industrial environments.
Strict mechanical clearances, enhanced insulation materials (Class H/F), and surface-temperature control prevent ignition hazards during normal operation.
Optimized low-loss stator laminations and advanced rotor designs reduce heat losses, ensuring compliance with global carbon reduction targets.
Enclosures sealed to IP55, IP56, or IP65 protect internal windings from conductive, non-conductive, and combustible dust environments (Zone 21/22).
Tracing our history from a state-owned enterprise in 1955 to a global industrial motor supplier.
SIMO Motor was established under government directive, laying the foundation for modern motor manufacturing in Northwest China.
Relocated to a dedicated manufacturing site in Xi'an, accelerating production of heavy machinery motors.
Renamed Xi'an Motor Factory after acquiring and integrating regional manufacturing operations to expand technical capability.
Transitioned from a state-owned factory into a limited liability company, introducing agile market systems.
SIMO Motor Group established, consolidating 14 specialized subsidiaries across electric design, casting, and maintenance.
Moved manufacturing to a modern plant in Xi'an's High-Tech Development Zone, implementing automated assembly lines.
Rebranded as Tech Full Simo Motor Co., Ltd., upgrading our export capacity to meet European and American demand.
Investing in IE5 Ultra-Premium Efficiency motors, IoT condition-monitoring sensors, and certified explosion-proof equipment.
A side-by-side comparison of electrical safety standards to help engineering teams select the correct motor configurations.
| Classification Code | Protection Type | Applicable Hazardous Zone | Key Design Strategy | Primary Industrial Applications |
|---|---|---|---|---|
| Ex ec (formerly Ex nA) | Increased Safety / Non-Sparking | Zone 2 (Gas) | Prevents sparks, arcs, and excessive heat on internal components. | Petrochemical pumps, fans, gas pipeline compressors. |
| Ex d / Ex db | Flameproof Enclosure | Zone 1 & Zone 2 (Gas) | Contains internal explosions without propagating flame externally. | Refineries, offshore oil rigs, chemical dosing pumps. |
| Ex tb / Ex tc | Dust Ignition Protection by Enclosure | Zone 21 & Zone 22 (Dust) | IP6X/IP5X dust-tight seals to prevent combustible dust ingress. | Grain silos, coal handling plants, cement processing mills. |
| Class I, Div 2 | North American Non-Incendive | Division 2 (Gas/Vapor) | Designed to prevent sparking under standard operating conditions. | US oil and gas installations, processing plants. |
Key considerations for industrial procurement officers, EPC contractors, and plant engineers sourcing hazardous area motors.
SIMO motors are certified for deployment across global markets, meeting relevant regional safety and import regulations:
* Note: For custom installations, SIMO provides certified drawings and detailed test reports to support local third-party inspections and approvals.
Engineering customized configurations spanning 34 major series, 1,800 varieties, and 19,500 specifications.
Features the YE3, YE4, and YE5 series. These motors utilize high-grade laminations and low-loss rotor designs to achieve IE3, IE4, and IE5 efficiency levels, reducing ongoing energy consumption.
Includes the YX, YXKK, and YXKS high-efficiency high-voltage series, as well as the YR, YRKK, and YRKS wound rotor series. Engineered for heavy industrial operations, these motors provide high starting torque for heavy loads.
The YBX3, YBX4, YBX5 explosion-proof low and high voltage series, along with dust-ignition proof designs, deliver reliable safety performance in volatile atmospheres.
The YVFE3, YVFE4, and YVFE5 series low and high voltage variable frequency drive (VFD) motors allow for precise speed regulation and energy conservation across varying load profiles.
Features T, TD, TK, and TDMK series synchronous motors. These systems are optimized for heavy milling and mining operations where constant speed and power factor correction are required.
Includes the Z2, Z4, and Z series DC motors. Designed for applications requiring precise, wide-range speed control and high torque, such as steel rolling mills and extruders.
How IoT diagnostics and new material sciences are shaping the next generation of industrial electric motors.
Technical guidance and answers to common questions about non-sparking and explosion-proof motors.
Complete your drive train specification with high-voltage, synchronous, DC, and control cabinet products.
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