Explore our key industrial line-up featuring advanced high/low voltage configurations, explosion-proof builds, and custom induction designs.
Xi’an Lite SIMO Motor Co., Ltd stands as a vanguard enterprise in the global electrical engineering landscape. We specialize in the R&D, manufacture, and deployment of large and medium-sized high-voltage, low-voltage, AC, DC, synchronous, and certified explosion-proof motors.
As a comprehensive mechanical processing and motor service supplier, SIMO integrates conceptual design, mold making, high-precision metal processing, advanced assembling, and multi-tier testing. Standing at the forefront of China's heavy motor industry, we continuously provide global engineering projects with high-voltage motors that significantly lower operational expenses and system stress.
The Critical Role of Large-Scale Rotary Machines in Decarbonization and System Efficiency
Heavy industries like petrochemicals, metallurgy, mining, and water infrastructure are replacing legacy steam turbines with high-voltage AC electric motors. Operating at 6kV or 10kV dramatically reduces transmission current ($I = P / (\sqrt{3} \cdot V \cdot \cos\phi)$), allowing engineers to minimize $I^2R$ power losses and adopt smaller cable diameters, generating massive material and operational cost reductions.
Chinese manufacturing has evolved from basic assembly to precision engineering leadership. Facilities like SIMO leverage localized, vertically integrated supply chains for silicon steel laminations, high-purity copper windings, and advanced casting components. Coupled with automated stator insertion and vacuum pressure impregnation (VPI) equipment, Chinese factories provide exceptional thermal reliability and rapid production turnaround.
Whether dealing with the high-torque, dust-heavy conditions of South American copper mines or the corrosive offshore atmospheres of East Asian petrochemical platforms, modern HV motors must feature tailored enclosures. Using advanced cooling methods like air-to-air (YKK/YXKK) and air-to-water (YKS/YXKS) cooling configurations ensures stable temperature margins in the harshest global operating environments.
Founded originally in 1955, Xi'an Lite SIMO Motor has transformed from a state-owned mechanical facility into a modernized private conglomerate. The historical milestones indicate our steady expansion and technological milestones.
Our registered capital has expanded to 21.5 million RMB. Our fixed assets are valued at 380 million RMB, housing more than 1172 sets of state-of-the-art testing and processing equipment.
Over 1200 specialized employees, 260 technical design engineers, 21 senior engineers, and 15 highly recognized expert engineers directing continuous innovation.
Spanning from 0.35kW to 25,000kW Across 34 Core Product Series
These series comprise high-voltage three-phase asynchronous motors designed for heavy industrial pumps, compressors, and blowers. Equipped with independent air-to-air cooling (KK) or air-to-water heat exchangers (KS), they maintain optimized thermal margins under heavy load cycles.
Designed for applications requiring high starting torque with low starting current, such as ball mills, crushers, and heavy conveyors. By connecting external resistance to the slip rings, starting performance is perfectly modulated to avoid grid stress.
Engineered strictly for hazardous areas containing explosive gases (such as hydrogen, methane) or combustible dusts. Designed with flameproof enclosures (Ex d) to contain internal combustion and prevent atmospheric ignition in underground coal mines and petrochemical plants.
Our range of low-voltage ultra-premium three-phase induction motors conform to international IE3, IE4, and IE5 standard ratings. Incorporating premium-grade electromagnetic steel, they minimize rotor losses and optimize energy conversion ratios.
Large synchronous motors and TFW-series generators ranging up to 25,000kW. Outstanding performance in high-power grinding mills and compressor stations, where power factor correction ($\cos\phi$ tuning) is critical to stabilizing overall plant grids.
For applications requiring precise, continuously variable speed control and massive starting torque, such as steel rolling mills, rubber extruders, and mine hoists. Robust commutator and brush configuration ensures long service life.
Explore our raw manufacturing quality and physical motor profiles directly from our factories.
Adhering strictly to ISO9001, EU CE, US UL, Russian GOST, and international explosion-proof standards.
To maintain outstanding reliability and electrical safety in overseas procurement, SIMO motors are fully tested and certified under global regulatory bodies. This guarantees compatibility with local grid codes, environmental limits, and explosive hazard classifications in various locations globally.
Proven mechanical engineering configurations for extreme global environments.
Petrochemical refineries require continuous, 24/7 drive operations. Standard low-efficiency induction motors generate excessive internal heat when driving heavy centrifugal pumps, risking safety in Class 1 Div 1 environments. We engineer custom YBX3 and YFB3 explosion-proof motors with specialized non-sparking terminal boxes, certified to meet both ATEX and local standards.
Ball mills, jaw crushers, and primary conveyor systems require high breakaway torque under full load. A standard motor will draw excessive starting currents, causing severe voltage drops across the substation. SIMO's YRKK wound rotor motors allow integration of external liquid resistance starters (LRS) to limit current surges while maximizing output torque.
Water supply lines and storm pump stations must operate reliably inside enclosed chambers. The high humidity levels require robust water protection. Using SIMO's YKS series water-to-air cooled motors ensures heat is efficiently transferred out of the pump room, lowering ambient air temperatures and preventing condensation on internal windings.
The Engineering Shift Toward Ultra-Efficiency, VFD Integration, and Smart Industrial IoT
The industrial sector accounts for approximately 40% of global electricity consumption, with electric motors drawing the vast majority. To meet carbon neutrality goals, global regulations are raising efficiency standards from standard IE3 to IE4 & IE5 Ultra-Premium efficiency classes. Achieving these targets requires optimizing magnetic circuit paths and using low-loss silicon steel sheets.
Operating heavy machinery at fixed speeds wastes significant energy. Incorporating variable frequency regulation (YJP / YVFE series) allows speed adjustments to match actual process demands. High-voltage insulation systems must be reinforced with corona-resistant VPI lacquer to withstand the high $dv/dt$ voltage spikes generated by modern IGBT inverters.
Modern plants cannot tolerate unexpected downtime on primary line drives. Incorporating temperature sensors (PT100) on windings and bearings, along with vibration transmitters and partial discharge (PD) monitoring couplers, enables real-time health tracking. This allows operators to perform predictive maintenance before faults occur.
Technical insights and purchasing guidance regarding industrial high-voltage motors.
High efficiency, flameproof, variable frequency, and large-capacity DC options.
Lite Simo
