Select premium, certified large/medium high-voltage synchronous, asynchronous, and direct current (DC) motors optimized for explosive atmospheres and heavy milling applications.
Xi’an Lite SIMO Motor Co., Ltd is a premier electric motor manufacturer and a pivotal state-backed engineering corporation specializing in the development of large/medium-sized, high/low voltage AC motors, DC motors, synchronous motors, and explosion-proof motors. Representing the elite tier of China's mechanical and electrical manufacturing industries, SIMO has established a reputation for robust design capability, comprehensive metal processing, mold fabrication, assembly, and full-load lifecycle testing.
As a trusted partner for macro-industrial installations, our production scale, testing capabilities, and technological development maintain a fast-growing trajectory. Global oilfields, petrochemical complexes, massive underground coal mines, and maritime port operations rely on SIMO's engineering team to deliver custom high-torque, explosion-protected motor drives that guarantee safety in extreme zones.
Originally established in 1955, SIMO Motor Group has guided the course of heavy motor development in mainland China. Our structural timeline shows how state-level industrial motor foundations transformed into an agile, tech-focused manufacturing titan.
With 3 primary manufacturing centers, 1 subsidiary, a registered capital of 21.5 million RMB, and fixed assets valued at 380 million RMB, SIMO utilizes 1,172 sets of advanced equipment to control every stage of quality production.
Our workshop relies on computer-controlled winding systems, large vacuum pressure impregnation (VPI) equipment, advanced rotor balancing machines, and precise testing chambers. This infrastructure ensures the integrity of high-voltage insulation systems, ensuring durability when running at 6,000V or 10,000V in demanding petrochemical plants.
Unveiling the economic, technological, and supply-chain parameters that place Chinese manufacturers like SIMO at the top of international industrial purchasing lists.
China's industrial zones host integrated supply ecosystems for heavy electrical manufacturing. From premium silicon steel sheeting to high-purity electrolytic copper, vacuum pressure resins, and high-tensile cast-iron shells, raw materials are sourced within a 150-kilometer radius. This proximity drastically reduces manufacturing lead times, allowing factories to build custom synchronous and asynchronous motors within compressed project timelines.
High-voltage explosion-proof motors are designed to operate safely in volatile chemical and mining spaces. SIMO motors are built to isolate electrical arcs, sparks, and high temperatures within flameproof containment vessels. Our products comply with European Union "CE" / ATEX directives, global IECEx frameworks, United States "UL" criteria, and Russian "GOST" parameters, verifying their capability to isolate danger zones.
China's manufacturing scale yields competitive cost benefits that are reinvested into material upgrades. We configure motors with Class F/H insulation, PT100 temperature sensors on both bearings and windings, space heaters to prevent internal condensation, and specialized oil-lubricated SKF or FAG bearings. This ensures high-voltage motors operate continuously under fluctuating loads without requiring frequent maintenance.
To support global decarbonization efforts, SIMO has upgraded its standard three-phase low and high-voltage induction motors (YE4 & YE5 series). By refining stator slots, optimizing rotor cage shapes, and selecting low-loss silicon steels, we reduce heat dissipation. This optimization lowers energy consumption and carbon emissions for oil refineries, chemical plants, and heavy manufacturing facilities.
High-voltage motors are the critical drive units in macro-scale industrial settings. Below are the primary hazardous locations where our motors are engineered to operate.
In oil and gas extraction, refinery operations, and pipeline transport, gaseous atmospheres are a constant risk. Large pumps, gas compressors, and ventilation fans must use explosion-proof motors that contain internal sparks. SIMO's YBX3, YBX4, and YBX5 series flameproof motors (ranging up to 10kV) are designed with robust cast-iron frames and tight joint dimensions to prevent flame transmission, ensuring safe operation in Zone 1 and Zone 2 environments.
Coal mines contain airborne coal dust and methane gas, requiring robust safety precautions. Mining machines, conveyor belts, and ventilation systems rely on YBK3 flameproof motors. For surface crushing plants and mineral milling mills, SIMO offers TDMK series synchronous motors that deliver high torque at lower speeds, protecting the machinery from sudden operational overloads.
Moving large volumes of water requires high horsepower and high-voltage power grids to limit current loads. SIMO’s YKS/YRKK high-voltage three-phase asynchronous motors (6kV or 10kV) feature water-cooling (YKS) or air-to-air heat exchangers (YRKK). These cooling designs protect internal windings from moisture and external debris, ensuring reliable performance in demanding environments.
Steel production requires heavy machinery like blast furnace blowers, rolling mills, and exhaust fans. These applications demand continuous operation and high thermal resilience. SIMO’s line of large DC motors (Z2, Z4, and Z series) offers precise speed regulation and high torque capacity. They are built to withstand the high vibration and thermal variations common in metal processing plants.
SIMO has passed the ISO9001 quality system certification, European Union CE, American UL, and Russian GOST standards. Our motors are built to comply with international regulations for electrical machinery operating in hazardous environments.
For engineering and procurement departments, selecting high-voltage Ex motors requires evaluating key specifications to ensure facility safety and performance.
When requesting quotes from a Chinese high-voltage motor factory, we recommend specifying the following technical configurations:
Answers to technical questions from installation supervisors, electrical engineers, and purchasing officers regarding high-voltage motors.
Select premium variable speed, dust-proof, explosion-proof, and ultra-efficiency three-phase motors engineered for reliability in tough industrial applications.
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