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Why Sunwin? Your Professional Partner in Power Testing & Measurement
1. About Sunwin
Qingdao Sunwin Technologies Co., Ltd. (Sunwin) is a professional enterprise dedicated to the R&D, manufacturing and service of intelligent power testing equipment. Built on load banks, Sunwin provides testing systems and intelligent test equipment for the generation, transmission, transformation, control and utilization of electrical energy.
A load bank is a power testing device that simulates real operating conditions (a dummy load). It reproduces the load characteristics of power equipment through resistive, inductive and other elements, enabling testing, adjustment, calibration and verification of generator sets, UPS, batteries and other power sources without connecting them to real loads. With advanced load testing technology, Sunwin helps customers scientifically verify the performance and reliability of power equipment, improve quality control and reduce safety accidents and economic losses caused by power failures.
Responding to the rapid growth of data centers and AI computing infrastructure, Sunwin has taken the lead in liquid-cooled load technology and is one of the few companies worldwide capable of providing liquid-cooled load solutions for the NVIDIA Rubin architecture, delivering precise and reliable power testing support for both air-cooled and liquid-cooled data centers.
2. One-Stop Product Portfolio
Sunwin covers the complete testing chain from air-cooled to liquid-cooled, low voltage to medium/high voltage, AC to DC, and from conventional power to new energy and EV charging. Nine product lines meet the diverse testing needs of global customers:
3. Core Advantages
4. Customer-First Philosophy
Sunwin is committed to creating value for customers first, for suppliers second, and for ourselves last. Customer needs always come first. From solution consultation, product customization to engineering commissioning and after-sales support, Sunwin accompanies customers through every testing task with a professional team and rapid response, ensuring power equipment is "testable, accurate and trustworthy".
5. Applications & Global Reach
Sunwin products are widely applied in data centers, AI computing infrastructure, shipbuilding, offshore platforms, national power grids, nuclear power, hospitals, telecommunications, railways and new energy, providing reliable testing support for critical power systems.
With proven product quality and professional service, Sunwin serves renowned customers including Weichai, Yuchai, Cummins, Huawei, Tencent and State Grid, and exports to Europe, America, Japan, South Korea, Southeast Asia and the Middle East, earning trust and long-term cooperation from customers worldwide.
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