Explore our leading selection of high-efficiency AC and DC motors designed for rigid, reliable mounting configuration in demanding mechanical environments.
Electric motors account for over 45% of global electricity consumption across industrial infrastructures. Among these, B3 (foot-mounted) horizontal motors represent the structural backbone of rotational power. B3 motors rely on integrate cast feet on the frame to anchor onto concrete or metal structural bases, providing high torsional rigidity and minimal vibration. In heavy machinery, water utilities, petrochemical facilities, and mineral processing, the structural integrity of the motor's foot mounting defines the operating life of the entire drive train.
Today, the global market is driven by strict regulatory standards for energy conservation. Organizations globally are transitioning from IE3 to premium IE4 and ultra-premium IE5 efficiency classes. This regulatory demand has placed immense pressure on heavy industrial operations to source high-efficiency, foot-mounted induction and synchronous motors that reduce total cost of ownership (TCO) without sacrificing structural reliability.
For over six decades, Xi’an Lite SIMO Motor Co., Ltd. has stood as a pioneer and industry-leading developer of advanced industrial electric motor technologies in China.
Xi’an Lite SIMO Motor Co., Ltd is an electric company and a main enterprise specializing in the manufacturing of large/medium-sized, high/low voltage AC motors, DC motors, synchronous motors, and explosion-proof motors in the Chinese mechanical industry. SIMO is a comprehensive manufacturing and service supplier of motor design, manufacturing, mechanical processing, mold making, and precision assembly. The Company ranks TOP in China’s motor industry as to its scale of production, and has maintained a fast-growing development trend for consecutive years.
Originally founded in 1955, SIMO Motor has built more than 60 years of deep history in motor manufacturing and sales. The registered capital is 21.5 million RMB. Today, SIMO operates 3 manufacturing factories and 1 subsidiary factory, supported by 380 million RMB in fixed assets and more than 1172 sets of advanced manufacturing and testing equipment. There are more than 1200 employees, including over 260 technical engineers, 21 senior engineers, and 15 expert engineers working together to engineer next-generation motor systems.
SIMO Motor established and led by government, laying the foundation of heavy electric motor industrial manufacturing in China.
Relocated to the new plant in Xi'an city, scaling up production capacity to meet national industrial development goals.
Officially renamed Xi'an Motor Factory after a series of successful strategic industry acquisitions and integration processes.
Reformed into a modern limited liability company from a state-owned factory, accelerating international technology integration.
SIMO Motor Group officially established, structuring 14 specialized subsidiaries across different electric machine niches.
Moved production to a high-tech and advanced new plant, introducing computer-aided CNC machining and digital quality check systems.
Changed name to Tech Full Simo Motor, optimizing global distribution, logistics, and technical field services.
Continuing on the path to be one of the best motor manufacturers, focused on IoT-enabled predictive maintenance and IE5 motor designs.
Understanding how Simo Motor delivers cost efficiency (discount) without sacrificing industrial quality, durability, or material standards.
Located in Xi’an, one of China's core heavy industrial clusters, Simo benefits from a complete localized supply chain. High-purity electrolytic copper, cold-rolled silicon steel laminations, and premium grey cast iron are sourced locally. This proximity reduces domestic logistics costs and allows us to pass these savings to our global clients in the form of competitive, "discount" wholesale pricing.
With over 1172 sets of advanced equipment, Simo Motor utilizes computerized automated winding, high-vacuum pressure impregnation (VPI) insulation processing, and multi-axis CNC machining centers for the motor frames. Automated manufacturing ensures consistent concentricity between the rotor and stator, minimizing shaft run-out and maximizing frame mechanical stress resistance.
Every foot-mounted motor undergoing custom manufacturing must pass full load testing, vibration spectrum analysis, temperature rise checks, and insulation resistance tests before leaving the factory. Our specialized large-scale testing center accommodates motors up to 25,000 kW, ensuring that discount pricing does not mean discounted reliability.
From low-voltage variable frequency drives to high-voltage mining motors, Simo Motor engineers solutions that fit exact system architectures.
Simo Motor maintains in-house R&D and manufacturing capacity covering all types of electric motors. Our products span 34 major series, more than 1,800 varieties, and more than 19,500 specifications, with a power range from 0.35kW to 25,000 kW. Our primary industrial motor offerings include:
Ensuring operational reliability under extreme physical environments and evolving regulatory requirements.
Underground coal mining applications require flameproof explosion-proof motors (such as Simo's YBK3, YBX3, YBX5 series). The dust-filled and methane-heavy atmospheres demand robust cast-iron foot mountings that withstand structural shocks from continuous mine mill crushers, conveyors, and heavy ventilation fans.
In petrochemical processing plants, electric motors drive high-pressure pumps and compressors. These applications prioritize explosion-proof designs and VFD compatibility (like our YVFE3 and YFB4 series) to control process flow rates precisely while preventing any static or electrical discharge from causing ignition.
Large municipal water pumping systems and drainage infrastructures deploy high-efficiency, high-voltage induction motors (YXKK and YRKK wound-rotor slip-ring motors). The B3 foot mounting configuration must be precision-aligned with the horizontal centrifugal pumps to minimize mechanical vibration and prolong bearing life.
Universal Adoption of IE5 Motor Standards: Efficiency regulations are tightening globally. The industrial switch from IE3/IE4 motors to IE5 ultra-premium motors reduces energy losses by up to 20%, resulting in substantial electric bill savings for multi-megawatt systems over years of continuous operation.
Predictive Maintenance Integration: Modern industrial users demand smart motors. By installing vibration, acoustic, and temperature sensors on the motor's foot frame and bearing housings, companies can detect minor misalignment, bearing wear, or winding insulation degradation before catastrophic mechanical failure occurs.
Decarbonization of Heavy Industrial Processes: The shift toward green manufacturing processes is driving high-voltage soft-starter cabinet integration and VFD implementation. These systems limit startup current spikes, protecting localized electrical grids and maximizing the lifespan of auxiliary machinery.
Tested and certified for reliable deployment in every global market jurisdiction.
Simo Motor has successfully passed ISO9001 Quality System Certification, European Union “CE”, United States “UL”, Russian “GOST”, and related explosion-proof safety certifications. Our electric motors are widely applied in electricity generation, coal extraction, petroleum refining, metallurgy, railway systems, transportation networks, chemical industries, agricultural water management, aviation, navigation, and other high-technology fields in China and around the world.
Technical answers to key engineering and procurement questions regarding standard B3 foot-mounted motors.
A: The mounting designations are defined by international standards (such as IEC 60034-7). A B3 foot-mounted motor features mounting feet cast or attached to the bottom of the motor frame. It is installed horizontally onto a foundation plate. A B5 flange-mounted motor has no feet, instead mounting directly to the driven machine via a flange on the drive end-shield. A B35 configuration incorporates both the frame feet of the B3 and the end-shield flange of the B5, offering maximum radial alignment support for high-torque couplings.
A: Foot-mounted motors constructed with high-grade grey cast iron (such as Simo's TDMK and YBX5 series) distribute torsional forces down to the foundation. Proper shaft alignment and high-tensile mounting bolts are critical. Simo's engineering team optimizes the structural ribbing of the motor frame to dissipate high-frequency mechanical vibration, protecting internal windings from dynamic shear stresses.
A: Although IE5 ultra-premium motors have a higher upfront cost than IE3/IE4 designs, they dramatically lower operating costs. Over a typical 15-to-20-year service life, energy costs represent over 95% of a motor's total cost of ownership (TCO). Transitioning to IE5 reduces winding losses, generates less internal heat, lowers bearing operating temperatures, and reduces downtime, paying for itself within 12 to 24 months.
A: For the European Union, the motor must be CE marked and comply with standard ecodesign regulations. For the United States, UL certification and NEMA efficiency classifications are required. For Russia and the Eurasian Economic Union, GOST/EAC conformity certificates are required. Simo Motor complies with CE, UL, and GOST standards, facilitating seamless international import and custom clearance operations.
A: Yes, our YVFE3, YVFE4, and YVFE5 series are specifically engineered for variable frequency control. These motors feature reinforced winding insulation (Class F or H), vacuum pressure impregnation (VPI) to withstand high dV/dt voltage spikes, and optional independent forced-cooling blowers to maintain optimal heat dissipation at low operating speeds.
A: Simo runs 3 modern manufacturing facilities, housing key components like frame castings, rotor shafts, laminations, and stator windings in stock. Our in-house foundry and machining centers allow us to manufacture custom shafts, non-standard mounting configurations, and special enclosures in 30 to 45 days, significantly faster than standard global lead times.
Explore our low-voltage, high-voltage, explosion-proof, and variable frequency drive models designed for heavy industrial use.
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