Analyzing the global transition toward ultra-efficient powertrain engineering and structural sustainability.
In the contemporary industrial landscape, electric motors account for approximately 45% to 50% of the world's total electricity consumption, rising to over 70% within core heavy manufacturing applications. As global regulatory architectures align with stringent decarbonization targets, the transition from conventional motor topologies to custom, ultra-efficient AC motor systems is no longer merely an environmental option—it is a critical requirement for survival and profitability. The emergence of the International Electrotechnical Commission's IE4 (Super Premium Efficiency) and IE5 (Ultra-Premium Efficiency) classifications represents the technical baseline for future-proofing industrial assets.
Optimizing electric AC motor powertrains requires a deep understanding of electromagnetic design, precision material sciences, and advanced thermal management. Modern operations demand systems that reduce key loss categories: stator resistance, rotor eddy currents, iron core hysteresis, and mechanical windage. By utilizing high-grade cold-rolled non-oriented silicon steel sheets and optimizing slot geometries, custom AC motors achieve up to 96% operational efficiency. This level of performance substantially lowers the Total Cost of Ownership (TCO) across complex, long-running processes.
By employing high-permeability, low-loss electrical steel laminations, and oxygen-free copper wire windings, our motors reduce core losses and copper losses to maximize electrical-to-mechanical conversion efficiency.
Over a typical 20-year lifespan, electricity represents over 95% of a motor's total cost. Transitioning to IE4 and IE5 custom AC motors delivers double-digit energy savings and accelerates capital payback periods.
Designed to operate in harsh environments, our custom explosion-proof and high-voltage synchronous systems feature robust Class H insulation systems and IP55/IP56 ingress protection ratings.
Xi’an Lite SIMO Motor Co., Ltd stands as a premier electric company and a cornerstone enterprise in the Chinese mechanical industry. We specialize in the manufacturing of large and medium-sized, high and low voltage AC motors, DC motors, synchronous motors, and specialized explosion-proof motors.
SIMO is a comprehensive manufacturing and service supplier, integrating motor design, advanced engineering, mechanical processing, high-precision mold manufacturing, final assembly, and automated testing. The company maintains a leading position in China's motor manufacturing sector, showing sustained fast-growing development trends through continuous technical innovation and stringent quality assurance.
Backed by a registered capital of 21.5 million RMB, SIMO operates three modern manufacturing facilities and one specialized subsidiary. Our operations are supported by more than 1,172 sets of advanced equipment, including large-scale vacuum pressure impregnation (VPI) installations, high-capacity dynamic balancing machines, and comprehensive computerized motor performance testing centers. Our technical team is composed of 260+ engineers, including 21 senior engineers and 15 expert engineers who drive our research, development, and custom motor design work.
A heritage of engineering dating back to 1955, built on continuous innovation and structural growth.
SIMO Motor established and led by the government, pioneering state-backed industrial machinery manufacturing.
Relocated to a newly constructed manufacturing plant in Xi'an City to expand production output capacity.
Renamed to Xi'an Motor Factory after a series of strategic state-driven acquisitions and asset integrations.
Reformed into a limited liability company from a state-owned factory, adopting modern corporate management models.
SIMO Motor Group established with 14 subsidiaries, forming an integrated supply chain network.
Moved to a high-tech and advanced new plant, upgrading automated assembly lines and tooling.
Rebranded to Tech Full Simo Motor, aligning corporate strategy with high-efficiency motor R&D.
Sustaining its role as a leading motor manufacturer, supplying IE4/IE5 ultra-premium efficiency systems to worldwide partners.
Why sourcing custom high-efficiency AC motors from China offers unmatched technological and commercial value.
Sourcing high-efficiency industrial motors involves navigating complex international standards, material costs, and manufacturing capabilities. Our manufacturing facilities in Xi'an leverage China's comprehensive industrial supply chain to offer key advantages:
Comprehensive engineering details for our standard and custom electric motor series.
SIMO's R&D and manufacturing capabilities cover a wide range of motor classifications. Our portfolio features 34 major series, over 1,800 varieties, and more than 19,500 individual specifications. The operational output range spans from 0.35 kW up to 25,000 kW, supporting diverse low, medium, and high-voltage electrical installations globally.
| Motor Series | Technical Characteristics & Construction Type | Voltage & Power Range | Primary Industrial Applications |
|---|---|---|---|
| YX, YXKK, YXKS | High-voltage, high-efficiency three-phase asynchronous motors. Available in box-type structure, cast-iron frame, and air-to-air (YXKK) or air-to-water (YXKS) cooling configurations. | 6kV, 10kV / Up to 25,000 kW | Large-scale centrifugal fans, heavy-duty water pumps, compressors, and ventilation systems. |
| YR, YRKK, YRKS | Wound rotor high-voltage induction motors designed for heavy starting loads or speed regulation. Features slip-rings and external resistance starters. | 6kV, 10kV / Up to 15,000 kW | Heavy ball mills, raw mills, crushers, winch drives, and high-inertia conveyors. |
| YE3, YE4, YE5 | Ultra-premium high-efficiency low-voltage three-phase asynchronous motors, fully compliant with international IE3, IE4, and IE5 efficiency limits. | 380V, 660V / 0.75kW to 375kW | General industrial machinery, fans, pumps, blowers, food processing, and material handling. |
| YVFE3, YVFE4, YVFE5 | Variable frequency speed-regulating low/high-voltage induction motors. Equipped with independent cooling blowers and insulated bearings. | 380V - 10kV / Wide power range | Variable speed drives, automated steel rolling mills, textile lines, and processing plants. |
| YBX3, YBX4, YBX5 | Explosion-proof high/low-voltage three-phase asynchronous motors. Designed with flameproof enclosures (Ex d IIC T4 Gb) to contain internal explosions. | 380V - 10kV / Up to 3,000 kW | Underground coal mines, oil refineries, chemical plants, offshore platforms, and dusty environments. |
| T, TD, TK, TDMK | Synchronous motors with customizable power factors (leading/lagging) to improve plant-wide electrical network stability. | 3kV, 6kV, 10kV / Up to 20,000 kW | Mine milling (TDMK), reciprocating compressors, large fans, and water drainage stations. |
| Z2, Z4, Z | Industrial DC motors featuring high starting torque, wide speed regulation, and minimal transient response times. | 220V, 440V / Up to 2,000 kW | Metal extrusion, paper production lines, rubber mixing, and wire drawing machinery. |
Engineered to deliver high uptime and efficient energy conversion in severe-duty environments.
Designed for heavy conveyor drives, grinding ball mills, and ventilation shafts. Features include reinforced cast iron enclosures, high pull-out torque parameters, and insulated bearings (such as SKF/FAG) to prevent electrical discharge damage.
For applications handling volatile gases and combustible dusts, our explosion-proof motor series (YBX3, YBX4, YBX5) are engineered to prevent spark propagation. These motors carry international certificates such as CE, UL, and GOST.
Our vertical and horizontal three-phase asynchronous motors provide continuous operation for large-scale pumps and irrigation systems. They feature IP55 rating protection and epoxy-impregnated windings to resist moisture and corrosion.
Essential guidance on purchasing standards, VFD compatibility, and long-term cost evaluation.
The industrial motor sector is evolving toward digital integration and higher efficiency standards. Key developments include:
When selecting a custom motor manufacturer, technical procurement teams should evaluate the following criteria:
SIMO systems conform to leading international quality systems, ensuring field reliability.










Technical guidance on installation, operation, and efficiency optimization.