Explore our engineering array of high-voltage industrial drives, standard and custom-made explosion-proof motor series.
Within highly explosive or hazardous industrial atmospheres, such as petrochemical installations, deep shaft mining operations, or offshore extraction rigs, the motor drive system represents a critical boundary of safety. Custom High-Voltage (HV) Explosion-Proof Motors are specifically designed to contain internal deflagration without propagating flame, hot gases, or sparks into the external surrounding explosive environment.
These specialized electric machines are manufactured according to strict structural topologies: Ex d (Flameproof), Ex e (Increased Safety), and Ex p (Pressurized). Utilizing Class F and Class H insulation materials processed under sophisticated Vacuum Pressure Impregnation (VPI) protocols, custom HV explosion-proof motor systems can easily withstand severe electrical stresses, steep wave-front transients from Variable Frequency Drives (VFDs), and thermal cycles without risking dielectric breakdown or physical structural deformation.
Our tailored custom design workflows ensure that core parameters—including frame rigidity, cooling methodologies (e.g., IC411, IC511, or IC611), shaft sealing grades (up to IP65 or IP66), and structural thermal dissipation characteristics—are calibrated precisely to match the localized environmental conditions of the client site, resulting in optimized operating safety profiles and long-term lifecycle reliability.
A trusted heritage of manufacturing excellence, powering heavy industry across the globe since 1955.
Xi’an Lite SIMO Motor Co., Ltd is an electric company and a primary enterprise specializing in the manufacturing of large/medium-sized, high/low voltage AC motors, DC motors, synchronous motors, and explosion-proof motors in the Chinese mechanical industry. SIMO is a comprehensive manufacturing and service supplier of motor design, manufacturing, mechanical processing, mold making, and full-scale 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.
Unmatched power coverage and customized structures designed for heavy engineering applications.
SIMO has 3 manufacturing factories and one subsidiary factory, utilizing over 1,172 sets of advanced equipment. Our R&D covers 34 major series, more than 1,800 varieties, and over 19,500 specifications, with power spanning from 0.35kW to 25,000kW. Our specialized engineering workforce includes 21 senior engineers and 15 expert engineers who handle critical custom setups.
Featuring YX, YXKK, and YXKS high-voltage, high-efficiency three-phase asynchronous motors, along with high-efficiency YE3, YE4, and YE5 series. Highly optimized for fans, blowers, water pumps, and compression trains.
Our specialized YVFE3, YVFE4, and YVFE5 variable frequency speed regulating AC motors, alongside the robust YBX3, YBX4, and YBX5 explosion-proof high/low voltage series, ensure optimal hazardous safety.
YR, YRKK, YRKS wound rotor high-voltage motors, T, TD, TK, TDMK synchronous motors, TFW large-size synchronous generators, and classic Z2, Z4, and Z series heavy-duty industrial DC motors.
Unmatched raw material sourcing, production efficiency, and logistical supremacy.
Our production facilities are situated in Xi'an, a major hub for China's mechanical and electrical manufacturing industry. This grants us immediate access to high-grade cold-rolled electrical steels (WISCO, Baosteel), specialized high-purity copper casting works, and massive precision foundries.
We deploy advanced automatic coil winding stations, computerized Vacuum Pressure Impregnation (VPI) equipment, and multi-axis CNC machines to achieve extremely tight tolerances. This translates to reduced energy consumption and lowered operation costs for the end buyer.
Our logistical operations leverage Xi'an's direct access to international rail and overland transport routes, as well as rapid shipping routes via Qingdao and Shanghai ports. This guarantees safe, standardized packaging and timely delivery of heavy electrical machinery to any location worldwide.
Ensuring absolute alignment with global electrical safety, quality management, and localization standards.
To service global engineering, procurement, and construction (EPC) companies, SIMO motors are fully tested and certified under world-class regulatory programs. We provide end-to-end trace documentation, testing protocols, and localization support for site installation.
SIMO has successfully passed the rigorous ISO9001 Quality System Certification, the European Union's "CE" certification, the United States' "UL" standard safety listing, and the Russian and Commonwealth of Independent States (CIS) "GOST / EAC" certifications. We ensure that every motor shipped possesses the necessary documentation to immediately pass local industrial inspection audits.
Our engineering services team works directly with localized installation agencies, assisting during key phase transitions. From initial shaft balancing tests and alignment during on-site commissioning to structural matching in retrofit projects, we guarantee that our motors integrate seamlessly with existing equipment.
Providing heavy-duty protection and consistent mechanical torque across critical sectors.
Our custom HV explosion-proof motors drive petrochemical compressors, crude oil pipeline pumps, and process fluid mixers where volatile gases (hydrocarbons, hydrogen) are continuously present, preventing flame propagation.
Providing heavy mining drives, belt conveyors, and shearer motors (such as the YBK3 series) optimized for methane-rich underground atmospheres, dust contamination, and extreme physical impacts.
Resistant to corrosive vapors and ammonia mixtures. These custom high-voltage configurations feature specialized marine-grade coatings, stainless steel shafts, and dust-tight terminal boxes.
The transition toward smart connectivity, energy efficiency, and predictive maintenance.
As the industrial world accelerates toward the Industry 4.0 standard, the design criteria for Custom HV Explosion-Proof Motors have evolved beyond simple mechanical and electrical containment. The primary development trends driving the industry include:
Expert answers regarding design requirements, certifications, and operational parameters.
Heavy-duty, custom-engineered machinery designed for long-term operational safety.
Lite Simo
