OEM Elektronik Motor Manufacturers & Factories

High-Voltage, Custom Explosion-Proof, and Advanced Drive Systems Architected for Global Heavy Industries

Xi’an Lite SIMO Motor Co., Ltd: Legacy of Power & Innovation

Established as a bedrock of China's heavy mechanical industry, Xi’an Lite SIMO Motor Co., Ltd is a premier manufacturing enterprise specializing in high-performance electric motor design, production, and custom drive systems. With roots dating back to the mid-twentieth century, SIMO has grown into a comprehensive manufacturing and service supplier, integrating motor design, complete mechanical processing, mold fabrication, assembly, and strict analytical testing.

As one of the leading entities in China’s motor manufacturing landscape, SIMO operates at a massive scale, continuously driving technological progress across the high/low voltage AC, DC, synchronous, and explosion-proof motor sectors. Our engineering ethos revolves around delivering rugged reliability, structural resilience, and peak energy efficiency under the most demanding commercial and industrial conditions globally.

21.5M
Registered Capital (RMB)
380M
Fixed Assets (RMB)
1,200+
Active Employees
260+
R&D Technical Engineers
SIMO Electric Motor Manufacturing Plant

Over 60 Years of Engineering History

Trace our development path from our founding in 1955 to our standing today as an industry leader in motor production.

1955

SIMO Motor is established under state-guided planning to serve China's foundational industrial needs.

1957

Relocated to a newly constructed manufacturing facility in Xi'an city, expanding initial production capacity.

1966

Formally renamed to Xi'an Motor Factory following strategic acquisitions and integration of regional engineering resources.

1999

Reformed into a modern limited liability company, introducing agile management and targeted technology investment.

2005

SIMO Motor Group is established, coordinating 14 distinct subsidiaries to optimize specialized supply chains.

2006

Relocated to our current high-tech advanced plant, introducing CNC tooling and automated testing lines.

2009

Transitioned corporate branding to Tech Full Simo Motor, reinforcing a global footprint in industrial motor distribution.

2019+

Continuing as a trusted partner, expanding our capabilities with next-gen IE4 and IE5 efficiency electric motor platforms.

Global Commercial & Industrial Landscape of Electric Motors

Modern industrial markets face shifting demands driven by the dual pressures of regulatory compliance and operational optimization. In high-power sectors, electric motors are responsible for upwards of 70% of total electrical energy consumption. This reality has driven international regulatory frameworks (such as EU Ecodesign directives and US DOE mandates) to enforce transitions from legacy efficiency grades (IE1 and IE2) toward IE3 (Premium Efficiency), IE4 (Super Premium Efficiency), and IE5 (Ultra-Premium Efficiency) standards.

Simultaneously, heavy industries like petrochemical processing, deep-pit mining, and metropolitan water transmission require robust safety performance. The demand for explosion-proof certifications (such as ATEX, IECEx, and UL hazardous location listings) is growing rapidly due to stricter occupational safety laws worldwide. To succeed in this landscape, OEMs require a partner capable of executing precise modifications on high-power motors without compromising efficiency or safety ratings.

Technical Architecture of Our Core Product Portfolio

Our product lineup features 34 major series, over 1,800 varieties, and 19,500 distinct specifications, spanning a power range from 0.35kW to 25,000kW. Below, we break down the technological features of these key systems:

High-Voltage AC Motors (YX, YXKK, YXKS)

Engineered for high-power utility pumps, compressors, and ventilation systems. Feature compact housing geometries, vacuum pressure impregnated (VPI) insulation classes, and low starting currents. Available in both air-to-air (YXKK) and air-to-water (YXKS) cooling configurations to optimize thermal dissipation in enclosed settings.

Wound Rotor Systems (YR, YRKK, YRKS)

These slip-ring systems are designed for high-inertia applications requiring high starting torque under load (such as heavy crushers, ball mills, and conveyor drives). The wound rotor construction allows connection of external resistance banks, minimizing grid disruption during start-up.

Explosion-Proof Motors (YBX3, YBX4, YBX5)

Designed with flameproof, dust-ignition-proof housings, making them suitable for hazardous environments containing volatile hydrocarbons or combustible dust. Built with non-sparking materials and certified to withstand internal explosions without venting flame to the exterior atmosphere.

Premium Efficiency Motors (YE3, YE4, YE5)

Our YE5 series represents advanced asynchronous motor technology, complying with IE5 efficiency ratings. Using optimized stator slot geometries, high-fill copper windings, and high-performance silicon steel sheets, these motors reduce electromagnetic and rotor loss by up to 20% compared to standard motors.

Large Synchronous Motors (T, TD, TK, TDMK)

Designed for large-scale industrial processes like reciprocating compressors and grinding mills. These motors offer adjustable power factor correction, helping plants optimize overall grid utilization and maintain stable operating speeds under varying load conditions.

Heavy DC Motors (Z2, Z4, Z Series)

Designed for applications requiring wide-range, smooth speed control and high transient overloads, such as metal rolling mills, extrusion machines, and mine hoists. These motors feature robust commutators and split-stator casings for simplified maintenance.

Supply Chain Resilience & Manufacturing Efficiency

Operating from our modern manufacturing base in Xi'an, SIMO Motor maintains stable production through an integrated supply chain. We maintain long-term partnerships with leading domestic suppliers for essential materials, including high-permeability cold-rolled silicon steel and high-purity oxygen-free copper. By managing casting, machining, winding, VPI insulation treatment, and performance testing in-house, we reduce production bottlenecks and maintain consistent quality control across all stages.

Our facility houses over 1,172 sets of advanced manufacturing and testing equipment, including large-scale CNC machining centers, automated coil winding machines, precision balancing rigs, and comprehensive motor test bays. This deep capacity allows us to manage large production volumes while remaining flexible enough to customize mechanical structures for specific OEM requirements. The result is shorter lead times and more reliable delivery schedules for global industrial projects.

SIMO Heavy Motor Assembly Line

Heavy Motor Assembly Line

Precision Rotor Dynamic Balancing

Precision Rotor Balancing

Automated Stator Coil Winding

Stator Coil Winding Section

Vacuum Pressure Impregnation (VPI) System

VPI Insulation Facility

Heavy Lathe Machine Operations

Heavy CNC Shaft Machining

Full Load Motor Performance Testing

Full Load Performance Testing

Industrial Application Scenarios & Localization

Because industrial environments vary, our motors are built with specialized configurations to handle distinct environmental hazards, electrical conditions, and mechanical loads:

Petrochemical & Gas Processing

For refining and gas compression sites, we supply explosion-proof motors (such as the YBX5 series) with Class I Division 1/2 or Zone 1/2 certifications. These motors feature spark-proof fans and corrosion-resistant coatings to prevent ignition in environments containing volatile organic compounds.

Heavy Duty Mining Operations

Underground and open-pit mining requires motors that can handle continuous dust exposure, severe vibrations, and high starting loads. Our YBK3 flameproof series and YRKK wound rotor motors are engineered with IP55 or IP56 enclosures and reinforced shafts to power conveyor belts, ball mills, and ventilation shafts reliably.

Municipal Water Infrastructure

For municipal water distribution and treatment facilities, our high-voltage YKS air-to-water cooled motors drive high-capacity water pumps. These systems are designed for continuous, multi-year operation, helping municipal networks optimize water flow while keeping maintenance downtime to a minimum.

Power Generation & Heavy Draft Fans

In thermal and hydro power generation, large industrial draft fans and feed pumps require continuous variable speed control. Our variable frequency AC motors (YVFE3/YVFE4 series) integrate with modern VFD drives, allowing plant operators to adapt speeds to changing load profiles and reduce auxiliary energy consumption.

Technology Roadmap & Future Development

As industrial automation and digitization progress, SIMO is updating its motor technologies to support smart industrial networks. Our R&D team is currently developing and deploying solutions across three key areas:

  • Integrated IoT Sensors & Smart Diagnostics: We are integrating temperature sensors, vibration probes, and winding health monitors directly into our medium and high-voltage motors. These sensors transmit real-time telemetry to central control systems, enabling predictive maintenance schedules and reducing unexpected downtime.
  • Next-Generation Magnetic Materials: By utilizing amorphous alloy cores and optimized permanent magnet designs, our engineers are developing motors that exceed IE5 efficiency limits. These designs lower core heat generation, extending insulation life and reducing cooling system requirements.
  • Advanced Insulation Formulations: We are introducing advanced epoxy resins and mica tape materials that support Class H+ insulation ratings. These materials improve dielectric strength and moisture resistance, allowing our high-voltage motors to run reliably in hot, humid, or high-altitude environments.

Global Compliance, Quality Systems & Certifications

SIMO's quality management framework is verified by international compliance bodies, ensuring our motors meet local regulatory standards in your market.

Our engineering and production processes are certified to meet major international standards. SIMO maintains ISO9001 Quality System Certification, European Union "CE" safety compliance, United States "UL" electrical standards, and Russian "GOST" parameters. This compliance structure simplifies integration and site inspection processes for international engineering projects.

SIMO Certification Document
SIMO ISO9001 Certificate
SIMO GOST Certificate
SIMO CE Certificate
SIMO UL Certificate
SIMO ATEX Certificate
SIMO Quality Standard Certificate
SIMO Safety Certificate
SIMO Environmental Management Certificate
SIMO Heavy Industry Compliance Certificate

Technical FAQ & Purchasing Insights

1. What differentiates SIMO’s YXKS/YXKK high-voltage motors from typical industrial motors?
Our YXKS (water-to-air cooled) and YXKK (air-to-air cooled) high-voltage motors feature a compact structural layout and optimized electromagnetic path design. By using VPI (Vacuum Pressure Impregnation) insulation systems, they provide high dielectric strength, mechanical stiffness, and moisture resistance. The specialized cooling designs allow these motors to operate continuously at high power ratings within constrained footprints.
2. How do explosion-proof motors (YBX3, YBX4, YBX5) manage safety in hazardous locations?
These motors are engineered with flameproof enclosures (Ex d or Ex tb) that prevent any internal ignition or electrical arc from sparking a fire in the surrounding atmosphere. They feature tight, machined joint paths (flamepaths) that cool escaping combustion gases before they reach the outside. This design complies with ATEX, IECEx, and China GB3836 safety standards for petroleum, chemical, and mining operations.
3. What efficiency advantages do YE5 series motors offer for commercial operations?
YE5 series motors meet IE5 (Ultra-Premium Efficiency) parameters, representing the highest efficiency standard for asynchronous induction motors. By using low-loss silicon steel laminations, high-fill copper stator windings, and optimized aerodynamics for the cooling fan, these motors significantly lower internal electrical and friction losses. For high-duty industrial installations, the reduction in energy consumption typically offsets the initial equipment cost within the first 12 to 18 months of operation.
4. Can SIMO customize motors for specific space constraints and environmental challenges?
Yes. With an engineering staff of over 260 design specialists, including 21 senior engineers, we can customize mounting dimensions, shaft materials, electrical terminals, cooling methods, and bearing arrangements. We also provide customized control cabinets, such as custom high-voltage soft-start systems, to match our motors to your existing plant configuration.
5. What is the role of wound rotor slip ring motors (YR, YRKK) in heavy industries?
Wound rotor motors allow operators to connect external resistors to the rotor windings. This configuration enables high starting torque while keeping inrush currents low. This design is highly suitable for heavy, high-inertia machinery such as ball mills, crushers, and large industrial conveyors that must start under full load conditions.
6. How does SIMO verify quality and structural integrity before dispatch?
Each motor undergoes a comprehensive testing sequence in our automated testing center. This testing program includes insulation resistance tests, winding resistance verification, no-load and full-load operations, vibration analysis, and thermal profile recording. For custom and high-voltage projects, we also perform dynamic balance verification and type-testing to ensure compliance with IEC standards.