Xi’an Lite SIMO Motor Co., Ltd. stands as a pillar of engineering excellence in the Chinese mechanical industry, specializing in the manufacturing of large and medium-sized high-voltage and low-voltage AC/DC electric motors, synchronous motor units, and explosion-proof propulsion systems. As a comprehensive manufacturing and service supplier, SIMO integrates elite motor design, precision mechanical processing, advanced mold manufacturing, and automated assembly.
Ranked continuously at the peak of China’s motor sector in terms of manufacturing scale, technical depth, and distribution volume, SIMO maintains an aggressive growth trajectory, supplying heavy industrial sectors worldwide with motors that boast verified CE, UL, and GOST configurations.
Explore our premium range of industrial AC and DC motors designed to meet CE certificate standards and international performance mandates.
In modern industrial operations, custom electric motors must fulfill stringent regulatory criteria to safeguard human operators and surrounding hardware. The CE (Conformité Européenne) marking is not merely a declaration of compliance; it is a fundamental passport of mechanical, electrical, and operational safety validated across the European Economic Area (EEA) and respected globally.
Our custom manufacturing line meticulously adheres to the **Machinery Directive (2006/42/EC)**, the **Low Voltage Directive (LVD 2014/35/EU)**, the **EMC Directive (2014/30/EU)**, and, for hazardous installations, the **ATEX Directive (2014/34/EU)**. These structural baselines guarantee insulation reliability, electromagnetic compatibility, and structural containment in explosive dust or gas scenarios.
For enterprise procurement, selecting CE certified motors from a verified custom manufacturer reduces validation timeframes, prevents customs delays, and offers a lower Total Cost of Ownership (TCO). In the field of high-efficiency drive engineering, our products like the YE5 (IE5 ultra-premium efficiency) and YBX3 (hazardous-proof units) offer peace of mind through documented conformity and rigorous factory type-testing.
International procurers—from heavy mining consultants in Australia to automated manufacturing firms in Central Europe—require tailored electrical drive designs rather than standard, out-of-the-box machinery. Operational environments dictate variable voltages, frame materials, ingress protection (IP ratings), cooling systems, and specialized mountings.
Tailored shaft diameters, keyed or spline configurations, and custom mounting flanges (IM B3, B35, V1) ensure seamless drop-in replacements for retrofitting aged systems.
Using Class F/H insulation matrices with VPI (Vacuum Pressure Impregnation) treatments. This controls dielectric breakdown under intense thermal excursions.
Incorporating insulated bearings (e.g., hybrid ceramic) and ground brushes to counteract high dV/dt transient shaft currents generated by variable frequency drives.
Established in 1955, Xi’an Lite SIMO Motor has evolved over more than 60 years from a government-directed plant into one of the largest private sector manufacturing groups in the heavy machinery sector. Our heritage is anchored by a continuous commitment to research and development, maintaining a vast infrastructure optimized for precision engineering and mass production.
With a massive fixed asset value of **380 million RMB**, our infrastructure includes 3 dedicated motor manufacturing complexes and 1 subsidiary plant housing over **1,172 sets of high-precision equipment**. Our R&D works across 34 major series of motors, encompassing more than 1,800 varieties and a staggering 19,500 individual specifications.
We supply a wide range of solutions spanning output ratings from **0.35 kW up to 25,000 kW**. Whether you require high-efficiency asynchronous systems, wound rotor units, or large custom DC generators, SIMO delivers certified stability to your operations.
SIMO Motor established under state ownership, laying the groundwork for heavy motor manufacturing.
Acquired and integrated surrounding facilities to form the unified Xi'an Motor Factory.
Formation of SIMO Motor Group, expanding operations with 14 specialized subsidiaries.
Established as a global enterprise exporting to over 40 countries under international certificates.
Take a virtual tour inside our facility. Our precision manufacturing processes leverage automated winding, computer-controlled rotor dynamic balancing, and climate-controlled testing bays.
The global industrial motor sector is undergoing a rapid evolution driven by energy-efficiency standards and digital transformations. Enterprise purchasers must target hardware that not only meets current regulations but is future-proofed against evolving frameworks.
With the European Commission's Ecodesign Regulation (EU 2019/1781) locking in mandatory IE3 and IE4 levels for different power thresholds, premium efficiency is no longer optional. Our **YE5 series** motors achieve IE5 ultra-premium efficiency rating status, minimizing global grid losses and reducing operating emissions.
Using high-voltage systems (3kV, 6kV, 10kV) allows large installations (such as mine mills, compressors, and water networks) to reduce operational amperage. This minimizes cable overheads and systemic line drop. High-voltage insulation engineering remains a hallmark of SIMO’s YKK, YKS, and YRKK lineups.
Under directive 2014/34/EU, hazardous industries demand dust explosion-proof (Ex tb, Ex tc) and gas explosion-proof (Ex d) drive units. The **YFB3, YFB4**, and **YBX3** series provide certified protection in extreme, dust-dense environments like cement production plants, grain silos, and chemical processing facilities.
Standard motor configurations rarely satisfy the extreme environmental demands of core global industries. Xi’an Lite SIMO Motor develops custom system architectures designed to handle localized thermal, physical, and chemical challenges.
| Sector / Application | Predominant Challenges | Recommended SIMO Series | Regulatory Frameworks |
|---|---|---|---|
| Mining & Ore Crushing | Extreme vibration, continuous shock loads, airborne abrasive particulate, torque spikes. | TDMK, YRKK (High Voltage Wound Rotor), YKK | CE, GOST, ATEX Zone 21/22 |
| Petrochemical & Refining | Presence of flammable volatile gases, corrosive ambient air, continuous duty cycles. | YBX3, YBX4, YFB3, YFB4 Explosion-Proof | CE, ATEX Directive 2014/34/EU |
| Water Conservation & Drainage | High volume pumping, moisture saturation, demanding soft start integration. | YKS (Water-to-Air Cooling), YKK, Soft Start Cabinets | CE, ISO9001 Quality System |
| Steel & Rolling Mills | Heavy starting torque, variable speed control requirements, high thermal radiation. | Z series large DC, Z4 High Speed DC, YJP Variable VFD | CE, LVD Directive, GOST Certification |
All SIMO electric motors undergo strict quality testing before dispatch. Our facilities maintain ISO9001 Quality System Certification, EU "CE", US "UL", and Russian "GOST" approvals. We support commissioning demands by providing full documentation for mechanical and electrical safety checks.
Operating across global boundaries requires localized service networks and immediate engineering support. SIMO Motor establishes end-to-end integration by providing comprehensive commissioning, installation support, and technical optimization in Europe, Southeast Asia, South America, and Central Asia.
Whether your project requires specific verification procedures for ATEX certification or localized type testing to satisfy local authorities, SIMO works alongside major global bodies (SGS, TUV, DNV-GL) to deliver the documentation your project demands.
To support predictive maintenance frameworks (IIoT), we integrate PT100 temperature sensors in stator slots and bearing houses, as well as SPM vibration monitoring sensors, protecting your operation from unplanned downtime.
The YVFE3, YVFE4, and YVFE5 series motors integrate customized frequency converters, guaranteeing wide speed variations and high running precision without risk of insulation stress or rotor overheating.
Find expert answers on CE compliance, custom motor configuration, and industrial implementation challenges.
While the CE marking is legally required for entering European Economic Area markets, it is used worldwide as a benchmark for electrical insulation safety, structural integrity, and electromagnetic compatibility. For heavy machinery installations globally, a CE certified motor guarantees that the hardware has undergone rigorous low-voltage testing (LVD) and electromagnetic emissions testing, lowering overall design risk.
SIMO offers custom double shaft extensions, custom keyways, splined drives, and tailored shaft lengths matching both DIN standards and customer-specific layouts. We also design shaft systems from high-tensile steel grades (like 42CrMo) to withstand heavy torque loading from crushers, fans, and heavy milling operations.
Our dust-tight enclosures prevent combustible dust from making contact with the internal electrical and hot surfaces of the motor. The housings use high IP ratings (IP65/IP66) and are built to withstand high structural stress, preventing any potential internal spark from igniting the surrounding dust environment.
For drive motors operating on variable frequency drives (VFDs), capacitive shaft voltage can discharge through the bearings, causing pitting and grease breakdown. SIMO addresses this by offering insulated bearings on the non-drive end, grounding brushes on the drive end, and optional hybrid ceramic bearing configurations.
We offer cooling configurations to suit different operating conditions. These include IC411 (totally enclosed, fan-cooled), IC611 (totally enclosed, air-to-air heat exchanger), and IC81W (totally enclosed, water-to-air cooled). Water-cooled configurations (like the YKS series) provide quiet operation and reliable heat dissipation in high-temperature environments.
Browse our secondary range of custom three-phase asynchronous and synchronous high-voltage machines, build systems, and soft-starting cabinets.
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