In the contemporary global manufacturing and heavy industrial paradigm, electric motor systems account for over 70% of total electrical energy consumption in industrial enterprises. As international regulatory bodies enforce stringent energy efficiency directives—such as IEC 60034-30-1 standards, European Ecodesign regulations, and global Net-Zero carbon mandates—industrial buyers and engineering procurement leaders are systematically overhauling their high-voltage (HV) electromechanical infrastructure.
The YKK Series High Voltage Motor stands as the ultimate workhorse across continuous-duty heavy industries. Designed specifically with an air-to-air heat exchanger (IC611 cooling topology) and boxed stator enclosure structure, YKK series motors deliver unprecedented thermal management, structural rigidity, and electrical stability under severe environmental stress. Modern procurement managers searching for wholesale YKK series motor manufacturers and factories require more than off-the-shelf equipment; they demand deep engineering expertise, custom frame adaptation, strict quality control certifications, and long-term total cost of ownership (TCO) reduction.
Unlike standard rib-cooled medium-voltage motors (IC411), the YKK series features a top-mounted air-to-air cooler consisting of high-density thermal exchange tubes. Outer air is forced through the tubes via an external fan, while internal hot air recirculates within the sealed motor housing. This dual-circuit cooling mechanism maintains optimal winding thermal equilibrium, preventing local hot-spots, extending Class F VPI insulation lifespan beyond 25 years, and dramatically decreasing thermal stress during frequent heavy-load start-ups.
Rated for 3kV, 6kV, 10kV, and 11kV operational networks with power outputs extending from 185 kW up to 10,000 kW. Available in 2, 4, 6, 8, 10, and 12-pole configurations to drive compressors, ball mills, and heavy blowers.
Utilizes Class F or Class H solventless epoxy resin Vacuum Pressure Impregnation (VPI). Delivers superior dielectric strength, moisture resistance, anti-corona protection, and exceptional resistance to chemical contaminants.
Boxed welded steel plate construction engineered for maximum mechanical rigidity. Precision machining eliminates shaft resonance, ensuring ultra-low vibration levels (well below ISO 10816 limits) and IP55 ingress protection.
Equipped with heavy-duty SKF/FAG rolling bearings or self-lubricating sleeve bearings with automatic oil recirculation systems. Integrated PT100 temperature sensors monitor bearing race and winding temperature in real-time.
Top-mounted independent heat exchanger with high-conductivity copper or aluminum tubes. Ensures uniform airflow across internal stator cores and rotor end-rings, suppressing localized overheating under continuous peak loads.
Engineered with insulated non-drive-end bearings and reinforced turn-to-turn insulation, making YKK motors fully compatible with modern High Voltage Variable Frequency Drives (VFDs) for precise speed and torque regulation.
With over 60 years of deep-rooted expertise in electric motor research and manufacturing, Shandong Sunvim Motor Co., Ltd. represents the pinnacle of industrial innovation. Following a strategic corporate transformation in 2022, we have rapidly established a high-standard, modernized production ecosystem tailored for the future of global industry.
Backed by the powerful resources of Sunvim Group—a multi-billion RMB conglomerate—Shandong Sunvim Motor Co., Ltd. benefits from strong financial stability and strategic growth. Our expansive facilities house over 400 sets of advanced manufacturing, precision testing, and automated supporting equipment, driving an impressive annual production capacity of up to 3 million kilowatts.
Today, Sunvim Motor has evolved into a premier enterprise seamlessly integrating R&D, world-class manufacturing, global distribution, and dedicated customer service. Driven by the excellence of Sunvim Group, the SUNVIM brand has earned widespread international recognition. Our high-performance electric motors are trusted by global OEMs and industrial buyers across premier markets, including Germany, Italy, Greece, Spain, Belgium, Denmark, South Africa, Slovakia, Australia, Singapore, Indonesia, Malaysia, and Taiwan.
Gaomi Electric Appliance Factory established; renamed Weifang Electric Machinery Factory in 1988.
Factory leadership established Gaomi Towel Factory, laying the core foundation for Sunvim Group.
Weifang Electric Machinery acquired by Sunvim; Shandong Sunvim Electrical Machinery Co. Ltd. formed.
State-of-the-art facility completed in Sunvim Industrial Park; officially renamed Shandong Sunvim Motor Co., Ltd.
High-torque YKK motors driving heavy jaw crushers, ball mills, and subterranean conveyor belts under severe dust and impact vibration conditions.
Continuous-duty motors providing high overload capacities for blast furnace blowers, hot-rolling mills, and molten metal transfer systems.
Precision-balanced motors driving giant aerodynamic induced-draft (ID) and forced-draft (FD) fans in power plants and mine shafts.
High-capacity vertical and horizontal YKK motors powering large-scale municipal water transfer and agricultural lift pump stations.
CCS, ABS, and DNV certified marine-grade motors built with anti-corrosion surface treatments for main propulsion assistance and winches.
Moisture-sealed high-power motors driving hydrapulpers, refiners, and paper machine drive lines with uniform speed regulation.
Explosion-proof capable HV motors driving centrifugal and reciprocating gas compressors in air separation and natural gas pipelines.
Hazardous-area rated enclosures protecting internal electrical components against aggressive airborne vapors and corrosive chemicals.
Specialized pitch, yaw, and cooling auxiliary motors built to endure continuous outdoor climate extremes and harmonic distortion.
As global industrial automation accelerates toward Industry 4.0 standards, Shandong Sunvim Motor Co., Ltd. is actively advancing the next generation of high-voltage motor architecture. Our dedicated R&D engineering group works closely with international EPC contractors and original equipment manufacturers (OEMs) to deliver tailored motor designs that exceed baseline performance metrics.
Integration of multi-axis wireless vibration sensors, stator winding RTDs, and bearing oil temperature telemetry directly into the terminal box. Enables cloud-based predictive maintenance, preventing unscheduled downtime and optimizing maintenance cycles.
By utilizing cold-rolled non-oriented silicon steel laminations with ultra-low core loss properties, Sunvim YKK motors achieve higher power densities, reduced eddy current losses, and superior efficiency curves across wide operational load ranges.
Tailored shaft extensions (splined, double-ended, special tapers), dual terminal box configurations, customized mounting dimensions (IM B3, V1, B35), and specialized tropicalized insulation treatments for high-humidity coastal installations.
Sunvim Motor
