China General Purpose Electric Motors Manufacturers & Factory

High-Performance Large/Medium High & Low Voltage AC, DC, Synchronous, and Explosion-Proof Powertrain Solutions for Critical Industrial Applications Worldwide.

Primary Industrial Motor Showcase

Explore our flagship general purpose electric motors engineered to deliver exceptional energy efficiency, mechanical durability, and precision operational performance across challenging operating environments.

YE4 IE4 Three Phase Low Voltage Induction Motors

High-Quality YE4 IE4 Three Phase Low Voltage Induction Motors

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Custom TDMK series motor AC three phase synchronous motor

Custom TDMK AC Three Phase Synchronous Motor for Mine Milling

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Custom Z series large DC motor

Custom Z Series Large-Scale Industrial DC Motors

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Custom YBX5 Series Asynchronous Totally Enclosed Induction Ex Motors

Custom YBX5 Series Asynchronous Totally Enclosed Induction Ex Motors

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Discount T Series Large Size Three-phase Synchronous Motor

T Series High Capacity Large Size Three-Phase Synchronous Motors

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China YVFE3 Series Variable Frequency Drive Three-phase Asynchronous Motor

YVFE3 Series Variable Frequency Drive Three-Phase Asynchronous Motor

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OEM YKS 6kV 10kV series High Voltage three-phase induction motor

YKS 6kV 10kV High Voltage Three-Phase Induction Motors

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Discount Y series high voltage three phase asynchronous motor

Y Series Standard High Voltage Three-Phase Asynchronous Motors

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Xi’an Lite SIMO Motor Co., Ltd

A foundational pillar of China’s mechanical and heavy machinery industrial infrastructure since 1955.

Xi’an Lite SIMO Motor Co., Ltd is an electric motor manufacturing powerhouse. We specialize in the R&D, engineering, and manufacturing of large/medium-sized, high/low voltage AC motors, DC motors, synchronous motors, and highly engineered explosion-proof motors. In the Chinese mechanical industry, SIMO is recognized as a premier comprehensive manufacturing and service supplier covering the complete engineering lifecycle: motor design, core manufacturing, precision mechanical processing, mold fabrication, complex winding assembly, and system-level performance testing.

As a TOP-tier manufacturer within China's electric motor landscape, our scale of production, advanced test centers, and sustained rapid development make us a key global OEM partner. From specialized ventilation blowers to high-torque grinding mills, our drive systems power critical global supply chains.

SIMO Manufacturing Facility
>68 Yrs
Manufacturing History
260+
Technical Engineers
¥380M
Fixed Assets (RMB)
19,500+
Motor Specifications

Global Industrial Procurement Dynamics

Addressing the challenges of energy efficiency, structural durability, and supply chain resilience for international buyers.

Total Cost of Ownership (TCO) Optimization

Electric motors account for over 70% of energy consumption in heavy industries. Sourcing IE4 (Super-Premium) and IE5 (Ultra-Premium) efficiency motors yields dramatic long-term savings in operational expenditures, offsetting initial capital costs within months.

Strict Regulatory and Standard Compliance

Global infrastructure projects require cross-compatible mechanical frames (IEC/NEMA) and localized environmental protections. Our motors strictly align with ATEX/IECEx for hazardous gas/dust zones, GOST-R for Eurasian networks, and UL/CSA for North America.

Application-Specific Engineering Lifecycle

Standard motors often fail in severe process industries. We customize electrical characteristics (V/f curves, rotor inertia) and mechanical parameters (IP55/IP66 enclosure, custom shafts, double-bearing configuration) to deliver robust solutions for critical mining mills and blast furnaces.

A Timeline of Industrial Innovation

From a state-owned mechanical factory to a modern global motor manufacturing group.

Founded in 1955, Xi'an Lite SIMO Motor Co., Ltd has stood at the center of China’s motor design evolution for nearly 70 years. Backed by RMB 21.5 million in registered capital, 3 modern manufacturing facilities, and a dedicated machinery factory, we span over 380 million RMB in fixed assets and operate 1,172 sets of specialized production machinery.

Our workforce of 1,200+ employees includes 260+ technical engineers, 21 senior engineers, and 15 design experts. Their expertise ensures that every custom powertrain aligns with advanced manufacturing parameters.

1955
SIMO Motor established and led by government as a core national industrial project.
1957
Relocated to a dedicated plant in Xi'an, centralizing R&D and core casting.
1966
Acquired allied suppliers and renamed to Xi'an Motor Factory, scaling industrial capacity.
1999
Successfully reformed from a state-owned factory into a highly responsive limited company.
2005
SIMO Motor Group established, consolidating 14 specialized subsidiaries.
2006
Moved to a highly automated high-tech plant, scaling production lines.
2009
Rebranded as Tech Full Simo Motor, targeting advanced European and Americas export markets.
2019 - Present
Positioned as one of the best global motor manufacturers, driving smart and energy-efficient motor systems.

Engineering Core: Full-Scale Product Capabilities

Our production covers 34 major series, 1,800 varieties, and over 19,500 individual specifications ranging from 0.35kW up to 25,000kW.

Motor Winding Station
Rotor CNC Machining
Quality Inspection Center
Finished High Voltage Motors

HV High Efficiency AC Motors

Represented by the YX, YXKK, and YXKS series. These motors are optimized for pipeline pumps, heavy ventilation blowers, and water distribution. Built using vacuum pressure impregnation (VPI) insulation system to ensure corona-free performance under variable operating loads.

Low Voltage Induction Motors

Featuring our premium YE3, YE4, and YE5 range. Fully compliant with IEC efficiency classifications, these systems deliver optimal torque responses, low vibration signatures, and extended insulation life profiles for general manufacturing machinery.

Variable Frequency Drive Motors

Led by YVFE3, YVFE4, and YVFE5 lines. Engineered with insulated non-drive end bearings to block shaft currents. These motors feature robust separate blower cooling to allow continuous low-speed, high-torque configurations.

Explosion-Proof Motors

Our specialized YBX3, YBX4, and YBX5 series are built for petrochemical facilities, refineries, and chemical processing. They feature flameproof cast iron enclosures and certified sealing elements to contain potential internal ignition events.

Synchronous & Generator Sets

Including the T, TD, TK, and TDMK series motors, and the TFW generator range (350kW-5000kW). Specifically designed for mine milling applications, offering high power factors and stable grid performance.

Industrial DC Motors

Featuring the traditional Z2, Z4, and Z series. Ideal for heavy metal extrusion, calenders, paper mill rollers, and mining hoists where variable speed ranges and instant high-torque overload capacities are required.

Certified Engineering Excellence

Uncompromised quality validation conforming to international engineering frameworks.

To operate within global industrial projects, SIMO motors are built to clear rigorous testing guidelines. Our factories comply with the ISO9001 Quality Management System, ensuring complete material traceability from raw steel coils to the final dynamometer test run.

Our major certificates include European Union CE compliance, United States UL certifications, and Eurasian Economic Union GOST clearances. This certified performance ensures hassle-free integration across municipal water infrastructure, chemical processing plants, rail transport networks, oil extraction sites, and deep underground coal mines.

ISO Certification Validation
Safety Standard Mark
Compliance Quality Seal
ATEX Explosion Certification
IEC Excellence Certificate
GOST Certificate

Technical Roadmap & Future Outlook

Driving the transition toward smart, hyper-efficient, and sustainable industrial powertrain networks.

Ultra-Premium IE5 Efficiency

We are shifting our product lines from induction designs toward Synchronous Reluctance and Permanent Magnet (PMSM) technologies. This path delivers IE5 efficiency, minimizing rotor heat dissipation and lowering utility costs.

IoT-Enabled Predictive Maintenance

Our future platforms integrate standard mounting options for IoT condition monitoring systems. These sensors track vibration harmonics, winding temperature changes, and bearing noise in real-time, helping prevent unscheduled plant downtime.

Low-Carbon Smart Materials

By optimizing magnetic circuit designs, utilizing ultra-thin low-loss silicon steel sheets, and using copper with high electrical conductivity, we minimize raw material consumption while improving overall power density.

Technical FAQ & Procurement Advice

Expert answers to the most common engineering and logistical questions asked by industrial procurement managers.

Q1: What are the differences between YE3, YE4, and YE5 efficiency standards?
These ratings correspond directly to the international IEC 60034-30-1 standard. YE3 represents Premium Efficiency (IE3), YE4 represents Super-Premium Efficiency (IE4), and YE5 represents Ultra-Premium Efficiency (IE5). Upgrading from YE3 to YE4 can reduce electrical losses by approximately 10-15% depending on the frame size, delivering significant lifecycle cost reductions.
Q2: How does SIMO prevent bearing damage from shaft currents in Variable Frequency Drive (VFD) motors?
For all variable frequency motors (YVFE3, YVFE4, and YVFE5 series) with frame sizes 280 and above, we use insulated non-drive end bearings or shaft grounding brushes. This breaks the circuit path of common-mode voltages generated by VFD switching frequencies, preventing electrical discharge machining (EDM) and premature bearing failure.
Q3: What critical parameters are required to customize a high-voltage motor for mine milling?
Customizing TDMK synchronous motors for mine milling requires several key parameters: operating altitude, environmental dust type, required starting torque curve, load inertia (J value), grid voltage drop limits during startup, and preferred cooling methods (IC01, IC11, IC31, IC611 or IC81W).
Q4: What flameproof zone certifications do the YBX3 and YBX5 motor series support?
Our explosion-proof asynchronous motors are certified for Zone 1 and Zone 2 gas environments (Ex d I Mb for underground mining, Ex d IIB/IIC T4 Gb for chemical sites) and Zone 21 and Zone 22 dust environments (Ex tb IIIC T130°C Db). They comply with ATEX and IECEx standards.
Q5: Why choose a DC motor (Z series) over an AC induction motor with VFD?
AC motors with VFDs dominate modern applications, but large DC motors (such as the Z and Z4 series) remain crucial for high-torque startups, quick reversals, and continuous overloads. They are widely used in heavy steel mills, metal extrusion machinery, and mine hoists where reliable torque performance is required.
Q6: How does SIMO ensure structural integrity in high vibration setups?
We use high-tensile cast iron frames with deep cooling ribs to optimize heat dissipation and improve rigidity. Rotors undergo dynamic balancing to standards exceeding G1.0. We also secure winding end-turns with polyester glass cords before processing them with Vacuum Pressure Impregnation (VPI).
Q7: What is the typical lead time for custom high-voltage motor projects?
Standard products can ship within 30 to 45 days. Large high-voltage motors (above 6kV/10kV) or customized synchronous motors typically require 90 to 120 days. This timeline accounts for structural drawing verification, magnetic field calculation, specialized stator winding, rotor balancing, and full load dynamometer testing.
Q8: How are international support, warranty, and field services managed?
All SIMO motors include an 18-month warranty from shipment or 12 months from commissioning. We offer remote video support, engineering consultation, and can dispatch technical field service engineers to partner locations worldwide for commissioning and alignment support.

Specialized & Heavy Duty Industrial Motors

Highly engineered industrial motors designed for underground mining operations, explosive atmospheric conditions, and specialized manufacturing machinery.

China YFB4 dust explosion-proof motor

YFB4 Series Dust Explosion-Proof Three-Phase Asynchronous Motor

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China YFB3 dust explosion proof motor

YFB3 Series Dust Explosion-Proof Three-Phase Asynchronous Motor

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China Z2 series DC motor

Z2 Series Industrial High Reliability DC Motors

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High quality YKS high voltage asynchronous motor

YKS Series High Voltage Three-Phase Asynchronous Motors

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China YBK3 flameproof motor for mining

YBK3 Flameproof Motors for Underground Coal Mines

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Custom Z series medium size DC motor

Z Series Medium Sized Industrial DC Motors

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OEM YBX3 low voltage explosion proof motor

YBX3 Low-Voltage High-Efficiency Explosion-Proof Motor

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High quality YBBP low voltage explosion proof motor

YBBP Explosion-Proof Variable Frequency Three-Phase Motor

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