Engineered for high performance, maximum reliability, and safety in harsh industrial environments worldwide.
In modern industrial process engineering, the selection of the system operating voltage is a pivotal factor that directly affects capital expenditure (CAPEX) and operational expenditure (OPEX). Standard three-phase low-voltage distribution networks traditionally operated at 380V, 400V, or 415V. However, as heavy industries demand higher power ratings for pumps, fans, compressors, and conveyors, the 690V power grid standard has emerged as the definitive benchmark for heavy-duty installations.
By using 690V motors, industrial plants can utilize significantly thinner power cables. This dramatically reduces the cost of copper, eases installation pathways, and lowers the weight and footprint of switchgear, variable frequency drives (VFDs), and motor control centers (MCCs). SIMO Motor's advanced low-voltage high-efficiency motors, designed specifically for 690V operations, ensure high reliability under continuous operation cycles (S1 duty) in petrochemical plants, marine propulsion, mining operations, and large-scale water treatment works.
Xi'an Lite SIMO Motor Co., Ltd. Advanced Manufacturing Base
A leading enterprise in the Chinese mechanical industry specializing in large, medium-sized, high, and low voltage AC/DC motors.
Xi’an Lite SIMO Motor Co., Ltd. is a comprehensive manufacturing and service supplier that integrates motor R&D, precision manufacturing, mechanical processing, mold making, and advanced assembly. As a top-tier manufacturer in China's motor industry, SIMO has maintained a strong, fast-growing development trend for consecutive years, servicing key global players across multiple industrial sectors.
SIMO Motor was established under state-owned management, pioneering electric motor manufacturing in Northwest China.
Relocated to a newly constructed manufacturing plant in Xi'an City, expanding industrial capabilities.
Rebranded as Xi'an Motor Factory after a series of strategic acquisitions and vertical integrations.
Reformed from a state-owned factory into a highly responsive, customer-oriented limited liability company.
SIMO Motor Group established, consolidating operations with 14 specialized subsidiaries.
Moved to a modern, high-tech development zone and advanced production facility.
Formally transitioned name to Tech Full Simo Motor, aligning with global brand positioning.
Pioneering Industry 4.0 automation, serving international clients, and developing premium efficiency IE4/IE5 motors.
Innovating insulation performance, magnetic design, and integrated intelligence for next-generation electric drivetrains.
690V systems operated under pulse-width modulation (PWM) VFDs experience sharp voltage spikes (high dV/dt). SIMO's roadmap focuses on specialized vacuum pressure impregnation (VPI) with Class H insulation systems and corona-resistant enamelled copper wires to prevent partial discharge and pre-mature winding failure.
Aligning with global decarbonization goals, SIMO is driving the adoption of YE5 series motors. By optimizing stator slots, utilizing high-permeability cold-rolled silicon steel sheets, and reducing rotor losses, we ensure our motors exceed the demanding IE5 efficiency threshold, even in heavy duty 690V setups.
The future of industrial motors lies in predictive maintenance. Our upcoming smart-motor modules embed vibration, temperature, and magnetic flux sensors directly onto the stator housing. Using edge analytics, they stream real-time data to warn operators of bearing wear or insulation degradation long before failure occurs.
Tailored drivetrains designed to optimize uptime and reliability under extreme operational environments.
For chemical processing plants and underground mines, safety is paramount. SIMO's explosion-proof lines (YBX3, YBX4, YBK3) operating at 690V comply with European ATEX, IECEx, and Chinese GB standards. These motors feature robust flameproof enclosures capable of containing internal explosions, ensuring hazardous gas and coal dust safety.
High structural vibration and intense heat require ruggedized designs. SIMO’s Z series large DC motors and YRKK high-voltage slip-ring motors provide precise torque control and high overload capacity needed for blast furnace blowers, hot rolling mills, and mining hoists.
For municipal water distribution, drainage projects, and agricultural irrigation, our YKS and YKK high-voltage water-cooled / air-cooled induction motors operating up to 10kV provide steady and continuous operation, resisting moisture ingress with advanced IP55 protection ratings.
How SIMO combines automated production lines with strict quality assurance to secure international procurement schedules.
In an era of global economic volatility, supply chain resilience is a core metric for procurement officers. Xi’an Lite SIMO Motor Co., Ltd. has established a highly integrated industrial ecosystem in Xi’an, featuring over 1,172 sets of advanced manufacturing equipment. Our facilities are equipped with CNC machining stations, automatic winding machines, specialized high-vacuum impregnation chambers, and digital load test benches capable of certifying performance parameters up to 25,000 kW.
By keeping core processes—such as frame casting, stator stamping, rotor balancing, and test-bench verification—entirely in-house, we eliminate external logistical dependencies and ensure consistent build quality. This level of control enables us to offer competitive lead times, flexible custom modifications, and reliable shipment dates to major global ports.
Our raw material procurement is backed by long-term partnerships with certified steel and copper mills. Using high-grade silicon steel sheets and premium pure copper coils ensures that SIMO motors achieve high electromagnetic performance while maintaining thermal stability. Whether ordering standard low-voltage 690V motors or highly custom high-voltage induction machines, our customers benefit from consistent and robust industrial engineering.
Meeting regional grid rules, safety standards, and environmental certifications for seamless global deployment.
Navigating different regional certifications can be a challenge for multinational procurement teams. SIMO Motor simplifies this process by manufacturing in strict accordance with major global certification frameworks. Our quality management system has successfully passed ISO9001 and ISO14001 audits, and our specific product families are fully certified for export to demanding global markets.
For the North American market, our select configurations carry the UL mark, complying with local NEMA requirements. For Europe, we offer CE compliance alongside specialized ATEX certifications for hazardous environments. Additionally, our motors carry Russian GOST certification for heavy industrial applications in Eastern Europe and Central Asia, guaranteeing trouble-free local customs clearance and rapid commissioning.
Get quick, direct answers from our application engineering team regarding 690V motors, compliance, and custom retrofits.
The main advantage is a reduction in operating current (approx. 43%). This enables smaller cable cross-sections, lowering copper installation costs, reducing power losses within transmission cables, and optimizing switchgear requirements. It is ideal for higher power demands ranging from 100 kW to several megawatts.
Yes. Under VFD operation, rapid voltage switching (high dV/dt) creates voltage spikes that stress insulation. SIMO uses Class F or Class H insulation materials, combined with advanced Vacuum Pressure Impregnation (VPI) and corona-resistant copper wire, to protect the motor windings from electrical breakdown.
Our explosion-proof lines (YBX3, YBX4, YBK3, YBBP) conform to Chinese national GB standards, European ATEX standards, and international IECEx standards. They are designed for hazardous environments where flammable gases, vapors, or explosive coal dust are present.
We use high-tensile cast iron frames, structurally reinforced end shields, and precision-balanced rotors dynamically balanced to G1.0/G2.5 quality standards. Advanced finite element analysis (FEA) is utilized during the design phase to minimize vibrations and structural resonances.
Standard production cycles range from 6 to 10 weeks depending on order size and frame design. Custom engineering projects requiring specific mounting footprints, double shaft extensions, or unique cooling systems (e.g., air-to-water exchangers) are finalized upon review of technical drawings by our engineering team.
Complete your facility's system design with our variable frequency drive, flameproof, and high-voltage motor lineups.
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