Explore our flagship industrial electric motors configured for high-efficiency operation in demanding commercial scenarios. From explosion-proof mining drives to variable frequency three-phase asynchronous configurations, our systems are engineered to meet global industrial standards.
In modern heavy industry, electric motors consume over 70% of the total industrial electrical energy. As nations push for net-zero carbon initiatives and high-performance operations, the choice of OEM High Power AC Motor Manufacturers becomes a cornerstone of long-term commercial competitiveness. Heavy-duty AC motors are not merely stand-alone components; they are the heart of processing lines, massive air ventilation shafts, mineral crushers, petrochemical compressors, and public municipal systems.
Integrating energy-saving technologies like IE4/IE5 ultra-premium efficiency structures and high-efficiency variable frequency drives (VFD) has shifted from an operational luxury to a compliance and commercial imperative. Industrial enterprises are actively upgrading their aging infrastructure to high-voltage, low-loss alternative motors. The mechanical design of stator windings, precision rotor dynamic balance, thermal management in water-cooled systems, and chemical resistance of frame coatings determine the lifecycle cost (LCC) and total cost of ownership (TCO) of these capital-intensive systems.
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 within the Chinese mechanical industry. SIMO stands out as a comprehensive manufacturing and service supplier covering motor design, mechanical processing, high-precision mold fabrication, automated assembly, and testing. The Company ranks TOP in China’s motor industry regarding its scale of production and has maintained a rapid development trajectory for consecutive years.
Supported by state-of-the-art facilities, SIMO provides reliable and durable motor drives built to survive extreme temperatures, high humidity, and hazardous environments. Their custom motor solutions are built from the ground up, guaranteeing optimal winding structures and high magnet efficiency for critical infrastructure projects globally.
The Company was founded in 1955 originally and now has more than 60 years of history in motor manufacturing and sales. The registered capital stands at 21.5 million RMB. SIMO has 3 manufacturing factories and one subsidiary factory, utilizing fixed assets totaling 380 million RMB and more than 1172 sets of advanced equipment. We boast a workforce of over 1200 employees, including more than 260 technical engineers, 21 senior engineers, and 15 expert engineers.
A snapshot of the heavy manufacturing and engineering resources backing SIMO's customized global supply contracts.
Our research and development division covers the entire spectrum of electrical rotating machinery. SIMO's product portfolio spans 34 major series, more than 1,800 varieties, and more than 19,500 specifications, with a comprehensive power rating stretching from 0.35kW to 25,000 kW. Below is a breakdown of our high-voltage and low-voltage configurations designed for global applications:
| Motor Series | Type / Classification | Cooling & Structural Design Features | Typical Industrial Applications |
|---|---|---|---|
| YX / YXKK / YXKS | High Voltage High Efficiency Three-Phase Asynchronous | IC411 (Self-fan cooling), IC611 (Air-to-air cooling), or IC81W (Water-to-air cooling); high structural rigidity, optimized magnetic slot wedge design. | Large-scale ventilation fans, heavy-duty compressors, water pumps in power generation and petrochemical processing. |
| YR / YRKK / YRKS | Wound Rotor High Voltage Motor (Slip Ring) | Heavy starting torque capabilities, adjustable external resistance. Designed for controlled startup under heavy mechanical loads. | Ball mills, primary rock crushers, high-inertia conveyor lines in mining and cement production. |
| YE3 / YE4 / YE5 | High & Ultra-Premium Efficiency Asynchronous | Complies with international IEC efficiency standards (IE3, IE4, and IE5). Employs premium-grade cold-rolled electrical silicon steel. | General machinery manufacturing, food and beverage processing, HVAC, energy management upgrades. |
| YVFE3 / YVFE4 / YVFE5 | Variable Frequency Speed Regulating High/Low Voltage | Equipped with independent cooling fans (IC416) and insulated bearings to prevent shaft currents under high dv/dt VFD switching. | Steel rolling mills, extruder lines, hoist operations, dynamic process controls. |
| YBX3 / YBX4 / YBX5 | Explosion-Proof High/Low Voltage Asynchronous | Flameproof joints (Ex d I Mb / Ex d IIB T4 Gb), heavy cast-iron housing designed to withstand internal gas explosions without risk of ignition. | Coal mines, petrochemical refining plants, oil platforms, chemical storage facilities. |
| T / TD / TK / TDMK | AC Synchronous Motors | Power factor adjustment, constant speed regulation, high torque stability, large shaft sizing for heavy impact loading. | Reciprocating compressors, heavy grinding mills, mining crushers. |
| Z2 / Z4 / Z Series | Medium & Large Industrial DC Motors | Precise torque regulation, wide speed control range, modular design, high overload capacity. | Metallurgy rolling mills, rubber calenders, marine propulsion, paper manufacturing. |
Visual assets of our standard heavy industrial motor frames, machining centers, and structural manufacturing capabilities. All designs are optimized for severe duty environments, with high-quality insulation and precision cast frames.
In the current global industrial landscape, high-power AC motors serve as the backbone of massive-scale manufacturing. From the coal basins of Australia to the petrochemical refineries of the Middle East, high-voltage and flameproof motor solutions keep processing plants online around the clock. Rapid industrialization and strict environmental mandates require manufacturing setups to utilize motors with minimum energy loss.
In processing plants, ball mills, SAG mills, and heavy-duty crushers demand continuous high torque. Wound rotor high-voltage motors (such as the YR, YRKK, and YRKS series) paired with slip rings provide controlled startup acceleration, minimizing the inrush current draw on local power grids and reducing thermal stress on the windings. Additionally, custom TDMK AC synchronous motors are configured for grinding mills to ensure precise operation under variable mechanical resistance.
Chemical processing plants operate in atmospheres containing volatile gases and dusts. Utilizing flameproof induction motors like the YBX3 or YBX4 series protects personnel and prevents catastrophic failures. Explosion-proof structures are designed to contain internal electrical sparks and maintain cool surface temperatures (following T4 classification limits) to prevent gas ignition in processing zones.
High-power water pumps and regional distribution pipelines utilize YKS series water-cooled AC motors. Water-cooling (IC81W) transfers heat away from the motor frame without requiring massive air-flow fans, which reduces operating noise and allows for compact installation space in pumping stations.
Operating globally requires adhering to regional efficiency regulations, electrical standards, and mechanical safety certifications. SIMO Motor has successfully passed the ISO9001 Quality System Certification, European Union "CE" certification, United States "UL" certification, and Russian "GOST" certification. This allows our motors to be deployed directly across Europe, North America, Central Asia, and the Middle East, meeting localized safety and compliance codes.
To support international EPC (Engineering, Procurement, and Construction) companies and factory operators, we offer complete localized engineering support, covering structural adjustments (such as NEMA vs IEC frames), custom shaft dimensions, localized electrical terminal box options, and terminal arrangements suited for regional power grids.
To address changing industrial requirements, SIMO is advancing its technology roadmap toward smart motors, high power density, and sustainable designs. The focus is on two key developments:
Integrating vibration sensors, winding temperature detectors (PT100), and air gap monitors directly into high-voltage frames allows for continuous condition monitoring. Predictive diagnostics identify insulation breakdown, bearing wear, or winding misalignments before they lead to downtime. This integration converts motors into intelligent nodes within an industrial Internet of Things (IIoT) framework, enabling automated scheduling of maintenance and lowering operational risks.
Improving electrical efficiency requires lowering core losses and optimizing rotor configurations. Transitioning from traditional slip-ring induction designs to high-torque permanent magnet synchronous motors (PMSM) or synchronous reluctance systems (SynRM) improves efficiency, particularly at partial loads. Using higher grades of silicon steel and optimized copper winding profiles allows motors to run cooler and consume less power, supporting sustainability and carbon reduction goals.
Find answers to common questions about selecting, maintaining, and integrating high-power AC industrial motors.
Explore more configurations from our manufacturing line, including variable frequency drives, medium/large DC motors, synchronous mining mill motors, and ultra-high premium efficiency products.
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