Explore our foundational range of custom high-voltage induction and synchronous motors, optimized for process reliability, hazardous area security, and ultra-high efficiency.
A cornerstone of Chinese mechanical manufacturing, powering industrial infrastructure worldwide since 1955.
Xi’an Lite SIMO Motor Co., Ltd (LITESIMO) is a leading comprehensive electric motor manufacturer specializing in the design, custom engineering, machining, mold fabrication, assembly, and testing of medium and large-scale high voltage (HV), low voltage (LV) AC/DC motors, synchronous machines, and certified explosion-proof drives.
By integrating modern mechanical engineering with advanced material processing, SIMO Motor maintains its ranking at the top of China’s motor sector. Our manufacturing facilities leverage state-of-the-art automation and highly controlled quality loops to construct electric machines that satisfy stringent global requirements.
Tracing the development path of SIMO Motor from a regional workshop to an internationally recognized supplier of custom high-voltage electric motors.
An analysis of design considerations, thermodynamic management, insulation technology, and rotor dynamics that drive long-term reliability in high voltage machinery.
We utilize Class F and H mica insulation systems, fully processed under computerized vacuum pressure tanks. This ensures bubble-free resin penetration, providing superior dielectric strength, high thermal dissipation, and absolute moisture resistance.
Configurable to IC411 (self-fan cooled), IC611 (air-to-air heat exchanger), or IC81W (air-to-water heat exchanger) designs. Engineered for optimal laminar flow, minimizing hot spots, winding stress, and acoustic emissions under cyclic loads.
Our fabricated box-type and cast-iron frame designs offer maximum structural stiffness. They are designed to withstand high radial shaft vibrations, shock loadings, and abrasive environmental particulates found in chemical extraction plants.
SIMO’s production capabilities encompass 34 distinct series, 1,800 styles, and over 19,500 individual specifications. This diverse range allows our engineering team to align every machine with the client's grid requirements, starting torque parameters, and ambient environment profile.
SIMO High Voltage Induction Motors are engineered for specific regional challenges, balancing power demands with environmental conditions.
For high-altitude mine sites in Chile or dusty outback extraction zones in Western Australia, our TDMK and YR series wound rotor induction motors deliver maximum starting torque under full load. Their heavy-duty enclosures prevent ingress of abrasive dust while compensating for low air density cooling restrictions.
Designed to operate safely in volatile atmospheres. Our YBX4 and YBX5 explosion-proof high-voltage motors are certified for Ex d, Ex e, and Ex nA zones. Featuring anti-corrosion marine-grade epoxies, they driving critical offshore pumps and refinery gas compressors under extreme saline conditions.
To power municipal aqueducts, massive flood irrigation systems, and sea water desalination high-pressure pumps. These systems utilize YKS and YKK high voltage motors with IP55 protection, configured for quiet continuous operation and minimal mechanical degradation.
Located in the industrial hub of Xi’an, SIMO Motor is positioned within a comprehensive mechanical and raw materials supply chain. Our facilities leverage direct access to key resources, including high-grade cold-rolled silicon steel sheets, copper windings, and high-tensile forged shafts.
From mechanical mold tooling design and CNC precision boring to VPI curing, rotor balancing, and multi-stage electrical testing, all key operations are kept in-house. This minimizes reliance on third-party suppliers, reduces lead times, and ensures consistent quality control.
Additionally, our high-voltage test center supports full-load and no-load tests up to 25MW. This facility ensures that all customized electrical parameters—such as efficiency curves, starting currents, and temperature rises—are validated before shipping.
How SIMO Motor is evolving its rotary machines to support smart diagnostics and lower carbon operations.
We are developing built-in sensor arrays for vibration, acoustic telemetry, and winding temperatures. These sensors feed real-time performance data to SCADA systems, enabling predictive maintenance and reducing unscheduled downtime.
To meet global energy conservation targets, our engineers are optimizing electromagnetic designs for three-phase asynchronous motors. By reducing copper losses and optimizing stator laminations, we aim to exceed IEC IE4 standards, moving toward IE5 limits.
Partnering with material research laboratories, we are testing nano-engineered epoxy resins. These materials offer improved thermal conductivity, allowing high-voltage motors to run cooler under over-fluxing or transient drive modes.
SIMO Motors are manufactured to meet global compliance structures, certified by recognized testing bodies for electrical performance, mechanical integrity, and hazardous area operation.






Technical insights on high-voltage induction motors, thermal management, and electrical design considerations.
Explore our specialized heavy-duty industrial electric motors, including synchronous mine milling drives and large-frame DC machines.