Explore our high-performance industrial motor portfolio designed for extreme operating conditions and precision industrial automation worldwide.
Empowering Industries Since 1963 | Shandong Sunvim Motor Co., Ltd.
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. The SUNVIM brand has earned widespread international recognition, trusted by global OEMs and industrial buyers across Germany, Italy, Greece, Spain, Belgium, Denmark, South Africa, Slovakia, Australia, Singapore, Indonesia, Malaysia, and Taiwan.
Established with 60+ Years Expertise
Capital Investment
State-of-the-Art Facility Area
Architectural Footprint
Investing in industry-leading machining lines and precision measurement equipment to guarantee micron-level accuracy.
A heritage of industrial dedication spanning over six decades of continuous development and structural growth.
Gaomi Electric Appliance Factory was established. In 1988, renamed as Weifang Electric Machinery Factory.
Mr. Sun, then the factory director, founded Gaomi Towel Factory, establishing the foundation of the Sunvim Group.
Weifang Electric Machinery Factory was acquired by Sunvim. Shandong Sunvim Electrical Machinery Co. Ltd. was officially established.
Completed construction of our advanced smart industrial park facility, renaming the enterprise to Shandong Sunvim Motor Co. Ltd.
Our operational framework meets stringent worldwide safety, energy efficiency, and quality specifications.
ISO9001: 2015
CE Mark
UKCA (UK)
UL Listed
SABS (South Africa)
CCS Marine
ABS Marine
DNV Marine
Delivering high-torque, robust motor technologies across critical sectors demanding reliable operation and safety compliance.
Strategic Insights into Constant-Tension System Architecture, Manufacturing Capabilities, and Global Optimization Standards
In web handling, continuous processing, and continuous-winding applications, maintaining constant tension is critical. Substrates—ranging from heavy metallurgical coils and composite fibers to paper sheets and polymer films—suffer defects if tension fluctuates. When tension is too low, telescoping, sagging, and lateral tracking deviations occur. When tension is too high, material deformation, structural micro-fractures, or total mechanical failure can occur.
As a leading OEM Tension Motor Exporter, Shandong Sunvim Motor designs advanced induction, permanent magnet, and vector-controlled speed-regulated systems. These systems maintain high torque at low speeds or at zero RPM. By matching torque delivery to the changing spool diameter, our motors prevent tension spikes, ensuring precision throughout the production cycle.
"Optimizing dynamic tension control requires a deep understanding of rotational inertia, thermal dissipation at low operational speeds, and fast-response electromagnetic systems. Modern manufacturing requires tension drives to act as both precision torque providers and dynamic regenerative absorption systems."
Our R&D department focuses on energy-efficient and highly integrated industrial automation solutions. The technical roadmap for our high-torque tension motors focuses on three main developments:
Developing synchronous reluctance (SynRM) and PM-assisted motors that deliver high efficiency across a wide range of speed and torque, eliminating rotor slip losses.
Integrating built-in vibration, current signatures, and thermal diagnostic sensors directly into the stator core. This enables real-time prognostic monitoring and predictive maintenance analytics.
Using independent cooling blowers (IC416 cooling), liquid jacket cooling, and class-H insulation to guarantee continuous high torque without thermal degradation at zero speed.
By using premium electromagnetic steel laminations and optimized stator windings, Sunvim tension motors deliver high torque-to-volume ratios. This allows industrial operators to scale down motor frame sizes without sacrificing tension control capacity.
Industrial operations face unique operational challenges depending on their environment. Our tension-control and industrial motors are customized to solve these specific challenges:
In our 68,000 m² state-of-the-art facility, Shandong Sunvim Motor integrates modern automation to ensure high product quality and reliable supply chains. Under our Factory 4.0 framework, every stage of production—from raw materials to final dyno testing—is monitored to maintain high performance and consistency.
Our manufacturing capacity is backed by advanced industrial machinery. With Automatic Shaft Machining Lines, high-precision Laser Cutters, and a fully digitized Type Test Center, every motor is precision-balanced to minimize vibration and maximize lifespan. Our Three-Dimensional Coordinate Measuring Instruments verify structural component tolerances down to the micrometer, ensuring that all custom housings and rotors match engineering designs exactly.
Supported by the multi-billion RMB Sunvim Group, our supply chain is highly resilient. We maintain deep strategic partnerships with suppliers of high-grade copper wire, low-loss electrical steel laminations, and premium bearings. This strong financial stability allows us to fulfill large OEM orders on schedule, even during times of global market volatility.
For international buyers and procurement heads, verifying a manufacturer's engineering credentials is crucial. Partnering with Shandong Sunvim Motor gives you access to a robust global support network, engineering expertise, and full compliance with international standards:
Our engineering team helps you select and customize winding-tension calculations, structural mounting designs, and electrical integration options for VFD systems.
We provide comprehensive logistics coordination, protective export packaging, customs documentation, and delivery tracking to keep your operations running on schedule.
Our motors carry international certifications, including ISO9001, CE, UKCA, UL, SABS, and marine approvals from CCS, ABS, and DNV.
This commitment to high quality, regulatory compliance, and reliable technical support makes Sunvim Motor a trusted choice for demanding industrial applications worldwide.
Get answers to common technical and procurement questions from our motor application engineering team.
Unlike standard induction motors designed for continuous speed operations, tension motors are optimized to provide continuous torque at very low speeds, and even at zero speed (stalled torque conditions). They feature high thermal capacity, independent cooling blowers to prevent heat buildup, and magnetic designs optimized to deliver a flat torque-to-speed curve. This ensures consistent winding and unwinding without overheating.
Yes. As a global exporter, we customize our electric motors for different international power supplies, including 220V, 380V, 400V, 415V, 440V, 460V, and 690V, at both 50Hz and 60Hz. We also design dual-voltage configurations to help OEMs simplify their spare parts inventory across different markets.
Every production run undergoes strict testing in our Type Test Center. This includes winding resistance measurements, insulation resistance checks, load tests to verify torque delivery, vibration analysis, and noise checks. For harsh applications, we also conduct environmental simulations, ingress protection testing, and thermal runaway tests to ensure reliable operation under load.
Supported by the financial stability of the Sunvim Group and our 53,000 m² modern manufacturing facility, we manage the entire production process in-house. This includes rotor balancing, shaft machining, and stator winding. Our annual production capacity of 3 million kilowatts allows us to scale production quickly to meet high-volume demands while maintaining consistent lead times.
Explore our high-efficiency modular and special-purpose electric motors designed for heavy industries, mining, and customized manufacturing applications.
Sunvim Motor
