High-Quality IEC Low Voltage Motors Factories & Electric

Decarbonizing Industrial Operations Through Smart, High-Efficiency Electric Powertrains and Reliable Manufacturing Logistics.

LITESIMO: Pioneering Industrial Electrification

Xi’an Lite SIMO Motor Co., Ltd is an electric company, main enterprise specializing in the manufacturing of large/medium-sized, high/low voltage AC motors, DC motors, synchronous motor, and explosion-proof motor in the Chinese mechanical industry. SIMO is a comprehensive manufacturing and service supplier of motor design, manufacturing, mechanical processing, mold making, assembling. The Company ranks TOP in China’s motor industry as to its scale of production, and has maintained fast-growing development trend for consecutive years.

As global energy conservation requirements intensify and environmental regulations tighten, the industrial sector faces the critical challenge of upgrading traditional electric drive systems. Selecting high-quality IEC low voltage motors is no longer just a purchasing decision; it is a long-term strategic investment affecting carbon footprint, operational expenditure (OPEX), and plant reliability.

By integrating state-of-the-art electromagnetic modeling, precision copper winding methods, and heavy-duty structural frames, SIMO motors ensure high-efficiency operations that fully align with IEC 60034-30-1 standards. From heavy mining operations to petrochemical processing plants requiring strict explosion-proof specifications, SIMO’s custom engineering accommodates diverse industrial needs globally.

LITESIMO Factory Facility
68+
Years Industry Expertise
1200+
Dedicated Employees
380M
RMB Fixed Assets
1172+
Sets Advanced Equipment

Technical Roadmap: IEC Low Voltage & High Efficiency Topologies

Deciphering design architectures, safety parameters, and power-to-weight optimization

IEC 60034-30-1 Compliance

Our product range features comprehensive coverage of international efficiency classes. From standard IE3 Premium Efficiency configurations up to next-generation YE4 (IE4 Super Premium) and YE5 (IE5 Ultra Premium) models, achieving up to a 40% reduction in motor energy dissipation losses.

Advanced VFD Compatibility

Paired with variable speed drives, the YVFE3, YVFE4, and YVFE5 series motors are equipped with high-dielectric insulated bearings and optimized stator wind patterns, preventing destructive electrostatic discharge (shaft currents) and ensuring consistent performance across wide speed ranges.

Industrial Protection & Ex Topologies

For hazardous environments, our YBX3, YBX4, and YBX5 explosion-proof series provide exceptional flameproof and dust explosion-proof capabilities. Certified for Zone 1, Zone 2, Zone 21, and Zone 22, these systems feature custom mechanical clearance controls and robust enclosures.

Comprehensive Product Range & Design Capabilities

SIMO's design and manufacturing scope covers an exhaustive range of specifications tailored for commercial and heavy industrial duty cycles. The power range spans from 0.35 kW up to 25,000 kW, structured across 34 major series, 1,800 varieties, and more than 19,500 distinct cataloged configurations.

Key motor classes in active production include:

High Efficiency Asynchronous: YE3, YE4, and YE5 series, designed to replace older legacy induction motors with minimal mechanical footprint disruption.
High Voltage Systems: YX, YXKK, YXKS (asynchronous) and YR, YRKK, YRKS (wound rotor) systems operating at 6kV or 10kV for heavy mining pumps and crushers.
Synchronous & DC: T, TD, TK, TDMK synchronous series, TFW large-scale generators, and classic high-torque Z2, Z4, and Z series DC motors.

Advanced Manufacturing Facilities & Equipment Showcase:

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Our 60-Year Legacy of Engineering Innovation

From a state-owned industrial plant to a top-tier global motor manufacturing hub

1955
SIMO Motor is established under government leadership to build the foundations of domestic industrial motor manufacturing.
1957
Relocation to a new dedicated plant in Xi'an city, setting off a massive scaling phase for large machine engineering.
1966
Renamed Xi'an Motor Factory after series of strategic acquisitions, consolidations, and production capacity integrations.
1999
Transformed from a state-owned factory into a highly flexible limited liability corporate entity.
2005
SIMO Motor Group is established, encompassing 14 specialized subsidiaries under its corporate umbrella.
2006
Relocation to a highly advanced, modern, high-tech plant designed for streamlined automation and high safety standards.
2009
Rebranded to Tech Full Simo Motor, optimizing global marketing channels and reinforcing export compliance.
2019 - Present
Continuing the path of design innovation, solidifying SIMO as one of the best motor manufacturers worldwide.

Supply Chain Resilience & Manufacturing Efficiency

Why sourcing from Xi'an, China provides unparalleled reliability and economic scale

1. Structural Cost Advantages and Raw Material Security

China’s industrial supply chain for heavy machinery is one of the most mature and integrated in the world. By operating from the Xi'an high-tech zone, SIMO has direct access to high-grade silicon steel mills, copper smelting operations, and specialized component casting facilities. This localization eliminates import delays and buffers our clients from raw material price volatility, maintaining an uninterrupted manufacturing pipeline.

2. Precision Mechanical Processing & Custom Mold-Making

With over 1,172 sets of advanced machining equipment, including CNC floor-type boring machines, heavy-duty dynamic balancers, vacuum pressure impregnation chambers, and automated winding centers, SIMO guarantees the physical tolerances required for high-efficiency operation. Because we maintain in-house mold-making capabilities, we can adapt mechanical interface layouts, customized shafts, and terminal box placements to fit specific legacy configurations without extending production lead times.

3. Advanced Testing Facilities & Verification

Every single low-voltage and high-voltage motor manufactured by SIMO undergoes rigorous factory acceptance tests (FAT). Our load-test field is one of the most advanced in Northwest China, capable of running full-load thermal trials on systems up to 25,000 kW. These diagnostic procedures verify temperature rise gradients, noise curves, and electromagnetic efficiency, assuring buyers that the motor performs to its design specifications from the moment of installation.

Engineering Capacities at a Glance

  • Registered Capital: 21.5 Million RMB
  • Technical Engineers: Over 260+ Specialists
  • Senior Engineers & Experts: 21 Senior, 15 Expert Engineers
  • Manufacturing Sites: 3 Major Manufacturing Plants + 1 Subsidiary
  • Global Markets Served: EU, North America, CIS, Southeast Asia, South America

Localized Application Scenarios & Case Studies

How SIMO Motors drive efficiency and safety across global industrial operations

Explosion-Hazard Environments

In petrochemical refineries, offshore gas platforms, and organic chemical plants, volatile gases demand motors that cannot produce spark or surface ignition. By deploying YBX3, YBX4, and YBX5 explosion-proof asynchronous motors, operators establish high-tier safety zones. Our flameproof paths prevent any internal ignition from escaping the heavy enclosure.

Mining & Severe Duty Applications

Underground coal mines require dust-proof and explosion-proof equipment (like the YBK3 Flameproof motor). Dust explosion-proof models (such as YFB3 series) prevent fine coal dust or metallic particles from penetrating active electrical housings, avoiding catastrophic dust ignitions and operating reliably under high shocks and moisture.

Municipal Water Infrastructure

Large municipal water transport, treatment, and distribution networks rely on YE3 and YE4 low-voltage motors driving high-volume fluid pumps. By utilizing variable frequency setups (YVFE3/YVFE4 series), city managers can dynamically adjust pump outputs to match city demand, capturing massive electrical savings and extending pipeline lifetime.

International Quality Standards & Certifications

Verified regulatory compliance for seamless cross-border integration

To support our global client base, SIMO maintains comprehensive compliance verification with key international bodies. Our industrial manufacturing lines passed ISO9001 Quality System Certification, EU "CE", US "UL", and Russian "GOST". These ensure our equipment integrates smoothly into European, North American, Russian, and Asian industrial markets.

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Industrial Motors Technical Procurement Q&A

Answering critical engineering and sourcing questions for design houses, EPCs, and managers

1. What are the main differences between IEC and NEMA low voltage motor standards?
IEC (International Electrotechnical Commission) standards, primary in Europe and Asia, utilize metric dimensions (millimeters) and evaluate motor efficiency via the IE1 to IE5 classification scale. NEMA (National Electrical Manufacturers Association), primary in North America, uses imperial measurements (inches) and specifies nominal efficiency levels. Shaft dimensions, mounting configurations, frame sizes, and terminal box configurations are standardized differently under the two protocols. SIMO designs motors to meet both IEC configurations and NEMA standards when requested, easing retrofits.
2. How do YVFE3 and YVFE4 Variable Frequency Motors prevent bearings damage?
Variable Frequency Drives (VFDs) can introduce high-frequency common-mode voltage, which generates capacitively induced shaft currents. When these currents discharge through standard bearings, they cause pitting, fluting, and failure. SIMO's YVFE3/YVFE4 variable speed motors are equipped with insulated non-drive end bearings and internal grounding brushes. This bypasses the electrical current away from the bearings, ensuring reliable, long-life operation under high-frequency VFD switching.
3. What engineering safeguards distinguish the YBX3/YBX4/YBX5 series in hazardous zones?
The YBX series features totally enclosed fan-cooled (TEFC) flameproof designs. The motor enclosures are built to withstand internal explosions of flammable vapors or gases without propagating the fire to the external atmosphere. These units are built with tighter joint gap tolerances, high-tensile fasteners, and specialized sealing rings. Every explosion-proof motor undergoes static hydraulic pressure testing on the frame and shields before final assembly to confirm the integrity of the enclosure.
4. Why is upgrading to YE4 (IE4) and YE5 (IE5) motors financially viable?
Over a motor’s typical 15-to-20-year service life, energy consumption accounts for roughly 95% to 97% of its total cost of ownership (TCO). Upgrading to a YE4 or YE5 ultra-high-efficiency motor reduces operating temperatures, prolongs winding insulation life, and lowers electricity consumption by 2% to 5% compared to IE3 designs. For continuous-operation installations like pumps or ventilation units, this energy saving typically achieves capital cost payback within 12 to 18 months of operation.
5. How does SIMO ensure high-voltage safety and stability in wound rotor motors like the YR/YRKK series?
Our YR, YRKK, and YRKS series wound rotor motors feature high starting torque at low starting currents, making them ideal for heavy crushing mills and high-inertia fans. We utilize class F insulation with vacuum pressure impregnation (VPI) using premium resins to eliminate air voids within the windings. Precision rotor dynamics balancing ensures that vibration amplitudes remain well below standard limits, preventing mechanical stresses and failures under variable mechanical loads.