Explore our leading-edge Custom Z-series DC motors, YBX asynchronous Ex-proof systems, and high-efficiency low-voltage components engineered to power critical industrial processes.
Established as a major pillar of China’s mechanical engineering industry, Xi’an Lite SIMO Motor Co., Ltd (popularly recognized under the brand SIMO) represents over six decades of manufacturing depth and technological innovation. We specialize in the R&D, manufacturing, assembly, and service of large and medium-sized, high and low voltage AC/DC motors, highly specialized synchronous machinery, and explosion-proof equipment.
Our comprehensive 156,000 square meter factory layout supports a complete production workflow—ranging from initial electromagnetic custom design, precision mechanical processing, structural mold making, and advanced automated winding systems, to thorough vacuum pressure impregnation (VPI) testing and load diagnostics.
From a state-owned heavy machinery pioneer to an international industrial electric motor group, explore the milestones that built our global reputation.
Global procurement teams targeting Custom Electric Motor Machine Suppliers frequently look to China not merely for cost efficiencies, but for unmatched engineering depth, raw material vertical integration, and rapid scalability. In the high-demand heavy industry sector, SIMO stands as a premier example of these advantages:
From local sourcing of high-grade non-oriented silicon steel sheets to direct coordination with domestic copper mines and casting foundries, our geographical location in Xi'an ensures highly stable, uninterrupted production queues.
With a staff of 260+ technical engineers, including 21 senior engineers and 15 expert consultants, we translate complex client specifications—such as custom dual-shaft extensions, extreme ambient heat limits, and variable frequency parameters—into robust 3D CAD/FEA electromagnetic models within days.
Chinese manufacturing has evolved from basic assembly to high-end precision. SIMO motors comply fully with international standards (IEC, NEMA, DIN) and carry native approvals for EU CE, US UL, Russian GOST, and national explosion-proof certifications.
SIMO Motor offers an extensive portfolio covering 34 major series, over 1,800 distinct product varieties, and more than 19,500 individual specifications. Our power profiles range from a compact 0.35 kW up to an ultra-heavy 25,000 kW, supporting operating voltages from 380V to 13.8kV.
Including the YX, YXKK, and YXKS series high-efficiency three-phase asynchronous motors. Designed with advanced cooling (IC411/IC611) to reduce operational thermal signatures. We offer YE3, YE4, and YE5 (IE5 Ultra Premium Efficiency) classes that dramatically decrease carbon footprint and energy expenditure for modern industrial plants.
Specially engineered YBX3, YBX4, and YBX5 series explosion-proof motors (Totally Enclosed Fan Cooled IP55/IP56). Designed to operate reliably in highly volatile atmospheres, such as petrochemical refineries, dust-heavy grain processing plants, and underground mines, meeting international ATEX and IECEx specifications.
Our Z2, Z4, and Z series DC motors deliver stable, highly controllable torque for metal rolling mills, paper manufacturing, and marine propulsion. For high-torque applications such as cement mill drives, we supply T, TD, TK, and TDMK series synchronous motors, as well as heavy-duty TFW generator systems.
Modern industrial plants require systems that seamlessly integrate into existing process loops. A custom motor is not an isolated unit—it is the heart of a larger macro-engineering system. SIMO Motor designs and manufactures custom drive packages optimized for diverse global industry verticals:
Our TDMK series AC three-phase synchronous motors are engineered specifically for the harsh conditions of mine milling, mineral processing, and heavy-duty ore crushers. Featuring high starting torque and built-in power factor correction, they stabilize the local electrical grid while handling extreme mechanical shocks.
In chemical processing plants where flammable gases and combustible dusts represent daily hazards, our YBBP and YBX series explosion-proof, variable-frequency motors are critical. They utilize robust cast-iron construction and explosion-isolated junction boxes to prevent electrical arcs from contacting external atmospheres.
Large municipal pumping stations, wastewater treatment plants, and hydro-infrastructure projects require long-lasting, continuously running machinery. Our YKK and YXKS high-voltage series provide high protection ratings (up to IP55/IP65) and optimized water-to-air cooling options (IC81W) to ensure 24/7 reliability.
Heavy conveyor systems, rotary kilns, and pulping machines require robust variable-speed drives. Our YVFE3/YVFE4/YVFE5 series variable-frequency motors pair with modern digital drives (VFDs) to offer wide speed regulation ranges, high efficiency, and precise control over dynamic torques.
Global procurement leads must balance capital expenditure (CAPEX) with long-term operational efficiency (OPEX). In today's market, purchasing decisions for high-power electric motors prioritize structural reliability and environmental compliance:
Our production facilities are equipped with state-of-the-art machinery and testing systems. SIMO operates in strict accordance with international standards, holding certifications including ISO9001, CE, UL, and GOST.


















Review answers to common technical queries regarding custom motor design, efficiency standards, and procurement processes.
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