Explore our premium industrial electric machines optimized for extreme operating dynamics, harsh environments, and custom engineering applications.
Xi’an Lite SIMO Motor Co., Ltd. represents the absolute standard of heavy-duty electric motor design and manufacturing in the Chinese mechanical industry. As a primary national enterprise, we specialize in the comprehensive construction, customization, and deployment of large and medium-sized, high and low voltage AC motors, DC motors, synchronous machines, and robust explosion-proof motors.
SIMO is not simply a factory; we are an all-inclusive scientific R&D, manufacturing, mechanical processing, mold fabrication, assembly, and maintenance service supplier. Ranking at the top of the motor industry in terms of scale, precision, and production volume, our infrastructure facilitates consecutive years of rapid development, catering to strict international standards such as GOST, CE, UL, and ISO9001.
Tracing our growth from a foundational state-owned electrical workshop in 1955 to a global leader in high-performance powertrain engineering.
Technical specifications, geometric frame differences, and mechanical alignments vital for Eurasian and CIS applications.
For industrial engineering firms sourcing powertrain equipment, compliance is not merely a formality—it is a functional requirement. The GOST standard (Gosudarstvenny Standart), primary across the Commonwealth of Independent States (CIS), features specific electrical parameters, mechanical dimensions, and environmental resilience metrics distinct from standard IEC/DIN formats. Frame sizes, shaft diameters, mounting holes (IM B3, IM B35), and shaft-height ratios must precisely conform to GOST 183-74 guidelines to enable seamless replacement or system integration.
Our custom GOST standard three-phase induction motors (such as the YX, YXKK, and YRKK series) are manufactured to withstand severe thermal swings (down to -60°C in Siberian and Arctic operations) and variable voltage grids. By utilizing premium Grade cold-rolled silicon steel, high-quality copper windings, and advanced thermal sensor relays, we guarantee minimal energy loss and superior torque parameters.
Engineered for nominal voltages spanning from low voltage up to 6kV and 10kV high-voltage configurations at 50Hz/60Hz, maintaining stable operation despite +/- 10% line voltage fluctuations.
Engineered in compliance with GOST frame profiles, providing optimized shaft heights, robust end-shield configurations, and specialized SKF/FAG bearings to reduce dynamic vibration (under 1.5 mm/s).
Equipped with certified EX d IIB/IIC protection grades according to GOST R IEC 60079, ensuring spark-free reliability in volatile chemical zones and high-dust atmospheres.
| Motor Series | Voltage Ranges | Power Output Span | GOST Class / Equivalent | Key Industrial Applications |
|---|---|---|---|---|
| YX, YXKK, YXKS Series | 6kV, 10kV, 3.3kV | 160 kW – 25,000 kW | GOST 183 / High Voltage Asynchronous | Water pumps, ventilation fans, industrial compressors, blowers |
| YE3, YE4, YE5 Series | 380V, 400V, 660V | 0.75 kW – 375 kW | Premium High Efficiency (IE3/IE4/IE5 equivalent) | General machinery manufacturing, conveying lines, fluid pumps |
| YR, YRKK, YRKS Series | 6kV, 10kV | 220 kW – 15,000 kW | Wound Rotor / Slip Ring Induction | Heavy-load ball mills, crushers, winch drives, mine hoists |
| YBX3, YBX4, YBX5 Series | 380V, 660V, 1140V | 0.55 kW – 500 kW | GOST R Ex-proof (Hazardous Areas) | Petroleum extraction, chemical plants, underground coal mines |
| T, TD, TK, TDMK Series | 6kV, 10kV | 500 kW – 20,000 kW | Large Industrial Synchronous Motors | Reciprocating compressors, large-scale mine grinding mills |
| Z2, Z4, Z Series | 110V - 440V (DC) | 0.35 kW – 2,000 kW | High Torque Reversible DC Motors | Metallurgical rolling mills, paper machines, rubber extruders |
How SIMO Motors addresses the operational realities of global procurement teams and heavy industries.
Heavy machinery such as crushers, ball mills, and conveyor belts demand continuous, high-starting torque under S1 duty cycles. Our slip-ring YRKK series provides low starting current coupled with high torque execution. The reinforced cast-iron housings minimize mechanical resonance, surviving abrasive iron-ore and coal dust.
Safety compliance is the most important factor in gas, refining, and chemical applications. SIMO's YBX3 and YBX4 series explosion-proof motors are certified for deployment in Zone 1 and Zone 2 environments. Engineered with non-sparking terminal designs and flameproof enclosures, they conform to strict GOST explosion-protection codes.
High-capacity water extraction and municipal heating pump grids require reliable high-efficiency operation. The YXKK series of high-voltage motors offers up to 25,000 kW capacity, maximizing fluid dynamics throughput while lowering long-term operating costs. This is supported by Class F/H insulation and double-vacuum pressure impregnation (VPI).
Our strategic roadmap integrates smart diagnostics, next-generation insulation, and decarbonization solutions.
As energy regulations tighten worldwide, SIMO is actively moving its GOST-compliant designs toward the YE4 (IE4) and YE5 (IE5) efficiency levels. By reducing electromagnetic and mechanical losses inside the rotor, we help heavy industries lower their overall carbon footprint.
Modern automation requires precise speed control. Our YVFE3 and YVFE4 variable frequency drive three-phase motors feature forced cooling fans (IC416) and insulated non-drive end bearings to prevent high-frequency shaft currents from damaging the motor.
We are rolling out integrated thermal sensors (PT100) and triaxial vibration transmitters directly into our custom stator housings. This enables real-time prognostic monitoring, allowing predictive maintenance alerts to prevent unplanned downtime.
Our manufacturing processes are certified to meet international quality, safety, and performance standards.
Take a look inside SIMO's manufacturing facilities, where we assemble heavy-duty components and execute precision balance testing.
Clear, technical answers to the most common questions from plant managers and procurement professionals.
Heavy-duty options built for petrochemical, hazardous area, and high-efficiency operations.
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