Engineered for absolute reliability, high torque performance, and strict international compliance standards.
Established as a cornerstone of China's heavy industrial manufacturing framework, Xi’an Lite SIMO Motor Co., Ltd. stands as a premier enterprise specializing in large and medium-sized, high/low voltage AC electric motors, heavy-duty DC motors, three-phase synchronous machinery, and certified explosion-proof drives.
As a comprehensive manufacturer and services supplier, our core integration spans custom mechanical design, high-precision machining, advanced coil winding, customized mold production, and state-of-the-art laboratory testing. Maintaining a TOP-ranking position in scale and export capacity within the Chinese mechanical engineering industry, SIMO continues to drive industrial electrification worldwide.
Years of Manufacturing History
Highly Skilled Employees
R&D Technical Engineers
Fixed Assets (RMB)
Trace the developmental milestones that built one of the world's most reliable electric motor brands.
In the context of heavy industrial engineering, the term "discount" does not represent a compromise in mechanical integrity, material density, or quality standards. Rather, it signifies the systemic cost efficiencies realized through optimized large-scale manufacturing (economies of scale), strategic raw material purchasing networks, and highly efficient assembly automation. When choosing a discount induction motor 3 phase manufacturer or supplier, procurement directors evaluate the Total Cost of Ownership (TCO) rather than just the initial capital expenditure (CapEx).
High-performance three-phase induction motors achieve their economic advantages via advanced computer-aided design (CAD) of stator slots, optimized copper-fill factors, and minimized electrical losses in the rotor cages. Purchasing directly from verified Chinese industrial clusters yields substantial financial discounts without sacrificing compliance with international standards such as IEC 60034, NEMA, or IEEE.
TCO = Purchase Price (CapEx) + Energy Losses over Lifetime + Operational Maintenance (OpEx) - Residual Value. Over a typical 15-year lifecycle of a continuous-duty motor, energy costs represent over 95% of total expenditures. Choosing an ultra-efficient motor (such as YE4 or YE5) is the primary driver of actual cost reduction.
Governments worldwide are implementing strict minimum energy performance standards (MEPS) for industrial electric motors. The transition from IE2 and IE3 standard efficiency to IE4 (Super-Premium) and IE5 (Ultra-Premium) is no longer optional in many developed markets. For global buyers, establishing contracts with manufacturers capable of producing compliant motor lines is critical.
High-efficiency induction motors feature optimized laminations of silicon steel, low-resistance winding profiles, and improved cooling fan designs. These features reduce thermal stress, which dramatically increases the mean time between failures (MTBF). Simo Motor Group's YE3, YE4, and YE5 series allow global operators to meet environmental mandates while securing long-term operational savings.
The modern industrial electric motor supply chain relies on consistent access to key raw materials: high-grade electrical steel, electrolytic copper windings, precision bearings (such as SKF, FAG, or top-tier domestic brands), and cast-iron frame components. Under China's Factory 4.0 initiative, factories have integrated advanced robotics, automated insulation systems (Vacuum Pressure Impregnation - VPI), and computerized dynamic balancing machines.
Simo Motor's advanced facility utilizes over 1,172 sets of high-precision equipment to maintain tight tolerances on motor shafts, bearing housings, and stator alignments. This level of vertical integration secures supply chain resilience against shipping disruptions and raw material fluctuations, giving international partners stable lead times and predictable pricing structures.
Selecting the correct machine topology is critical for plant performance. The table below outlines the primary operating parameters of our core AC induction and DC motor series.
| Motor Series | Type | Power Range (kW) | Voltage Levels | Key Application Scenario |
|---|---|---|---|---|
| YE4 / YE5 | Low-Voltage AC Induction | 0.75 - 375 kW | 380V, 400V, 415V, 660V | Pumps, Fans, Conveyors, General Machinery |
| YXKK / YXKS | High-Voltage AC Induction | 220 - 25,000 kW | 6kV, 10kV | Heavy-Duty Compressors, Water Pumps, Blowers |
| YBX3 / YBX4 / YBX5 | Explosion-Proof AC Induction | 0.18 - 315 kW | 380V, 660V, 1140V | Petrochemical, Coal Mines, Gas Processing Plants |
| TDMK Series | Three-Phase Synchronous | 355 - 5000 kW | 6kV, 10kV | Heavy Ore Milling, Ball Mills, Mining Crushers |
| Z4 / Z Series | Industrial DC Motor | 1.5 - 2000 kW | 220V, 440V, Custom | Extruders, Steel Rolling Mills, Paper Mills, Hoists |
Industrial motors must perform under challenging local environments. We engineer specific configurations to meet these demands:
Precision production facilities and global compliance verifications.
















Direct answers from our senior engineering team regarding 3-phase induction motors, custom specs, and manufacturing capacity.
Pricing is determined by efficiency grade (IE3 vs IE4/IE5), frame materials (cast iron vs cast aluminum), custom shaft extensions, and safety certifications (such as ATEX or Ex d). Lead times are optimized by SIMO's extensive raw material inventory. Standard motors typically ship in 3-4 weeks, whereas specialized high-voltage synchronous or custom flameproof machines require 6-10 weeks for production, rigorous dyno-testing, and compliance certifications.
YKS water-cooled motors use a water-to-air heat exchanger, making them compact and ideal for hot environments or confined spaces with limited airflow. YKK air-to-air cooled motors use a series of external cooling tubes and ambient air, requiring minimal utility infrastructure. YKK is generally selected for open industrial spaces, while YKS is favored in clean rooms, underground mines, or marine operations with cooling water loops.
VPI is a process where a fully wound motor stator is subjected to a vacuum, extracting air and moisture, and then submerged in a solventless resin under pressure. This ensures 100% penetration of the electrical insulation system. VPI eliminates voids, prevents electrical discharges, enhances mechanical stability against vibration, and provides resistance to moisture, dust, and chemical ingress.
Yes. We routinely engineer replacement motors designed to match the critical mechanical and electrical footprints of legacy machines. Our engineering team can replicate shaft heights, mounting hole alignments (IEC or NEMA standards), terminal box positioning, and torque curves, ensuring seamless mechanical drop-in replacements.
Explosion-proof motors must have certifications matching the target region, such as ATEX for Europe, IECEx for global markets, UL/CSA for North America, and GOST for the Eurasian Customs Union. SIMO's YBX3, YBX4, and YBX5 series carry flameproof and increased safety certifications, ensuring compliance in Class I, Division 1 & 2 environments and Zone 1 & 2 areas.
Explore our industrial-grade high-voltage induction units, DC traction drives, and low-voltage high-efficiency motors.