Understanding TOMUU’s Linear Actuator Portfolio for Solar Tracking
Anyone researching a linear actuator for solar tracking applications quickly runs into a core engineering challenge: the device must handle high static and dynamic loads, resist dust and water ingress, tolerate harsh outdoor temperatures, and maintain accurate sun-following motion for photovoltaic panels and heliostats over a long service life. Dongguan TOMUU Transmission Technology Co., Ltd., operating under the brand name TOMUU, was founded in 2015 and is headquartered in Dongguan City, Guangdong Province, China. The company positions itself as an integrated R&D, production, and sales high-tech enterprise providing linear actuator products and application solutions for photovoltaic and thermal solar, medical, industrial, livestock, home, and industrial intelligence applications.
TOMUU’s business coverage extends to the United States, Canada, Chile, Spain, Australia, India, and multiple regions in China including Xinjiang, Ningxia, Jiangxi, and Shaanxi, totaling more than 20 countries and regions. Supporting this footprint are five subsidiaries located in Dongguan, Xiamen, Vietnam, and other locations, alongside a global installed base of more than 38GW of solar tracker linear actuators and a 2023 annual output of nearly RMB 400 million.
Single Electric and Multi Electric Linear Actuator Drive Solutions
For utility-scale tracker rows requiring high push-pull force, side-load tolerance, and environmental sealing, TOMUU offers a range of single and multi electric linear actuators. The U10G delivers a dynamic load of 31,000 N and static load of 80,000 N, with IP66 protection and an ambient operating range of -40°C to +65°C. The U10S steps up static holding capacity to 110,000 N alongside a dynamic load of 34,000 N, also rated IP66. The U20 and U20F both offer 80,000 N static load with dynamic loads of 31,000 N and 24,000 N respectively, maintaining the same wide temperature range and IP66 sealing.
For applications needing faster, more compact motion, the U7 provides a dynamic load of 2,000 N, a stroke of 30-400 mm, a no-load speed of 5.4 mm/s, and IP65 protection. The GD28 targets lighter-duty actuation with a 3,000 N dynamic load, a 40-200 mm stroke, and IP65 sealing across -25°C to +65°C.
Mechanical Linkage Linear Actuators for Synchronized Tracking
Mechanical linkage tracker architectures require coordinated motion across multiple actuation points. TOMUU’s U17A-主 and U17A-副 units each provide a 20,000 N dynamic load and 70,000 N static load, while the U17B-主 and U17B-副 variants raise static holding capacity to 130,000 N. All four carry IP66 protection and a -40°C to +65°C operating range, with a controlled full-load speed of 0.5 mm/s for synchronized linkage movement.
For torque-driven linkage segments, the U18A offers a torque rating of ≤24 N·m with a 15,000 N dynamic load and 50,000 N static load under IP66 protection, while the U18B addresses lighter linkage needs with a 5,000 N dynamic load, 12,000 N static load, and IP65 sealing across -30°C to +65°C.
Fixed Adjustable and Photothermal Linear Actuators
TOMUU also supplies fixed adjustable and photothermal linear actuators for set-and-hold tracker configurations and concentrated solar power applications. The U18C carries an input torque of ≤8 N·m, a 5,000 N dynamic load, and 20,000 N static load, rated IP65 across -20°C to +65°C. The U18F raises static holding to 25,000 N with a 3,000 N dynamic load and extends low-temperature operation down to -40°C.
For heliostat and concentrated solar power tracking, the U23A electric photothermal actuator supports a 6,000 N dynamic load and 24,000 N static load for reflector positioning, with additional photothermal drive data showing a dynamic load capability of up to 24,000 N and a speed range of 0.15~1.5 mm/s across a 300~1000 mm stroke.
Dampers Built for Extreme Outdoor Exposure
Beyond actuation, TOMUU produces dampers that manage restoring and compressive forces at tracker limit positions. The U21A is rated IP68 with an 800-hour salt spray test, offering three force versions reaching a maximum restoring and compressive force of 15,000 N. The U21B adds built-in or external spring configurations designed to reduce load current at extreme positions, also carrying IP68 protection and an 800-hour salt spray test, with force options up to 12,000 N.
Proven Performance Across Global Solar Projects
TOMUU’s linear actuator solutions have been deployed across multiple utility-scale projects. In Weinan, Shaanxi, China, a 100 MW project used mechanical linkage linear actuators, as did a 100 MW deployment in Jiangxi, China. A 293 MW project in Shihezi, Xinjiang, China relied on multi electric linear actuators. Overseas, a 100 MW project in the United States, a 394 MW project in India, and a 100 MW project in Canada each employed single electric linear actuators. Fixed adjustable linear actuators were used in a 100 MW project in Dunhuang, China and a 180 MW Longyuan project in China. These deployments collectively support TOMUU’s reported global installed base of more than 38GW across more than 20 countries and regions. TOMUU also lists Trina Solar among its business partners.
Quality Assurance and Certifications
TOMUU’s supply chain and quality control system is supported by ISO9001, ISO14001, and ISO45001 certifications, while its products carry safety certifications including UL, CE, KCC, and 3C. Intellectual property protections include a US patent for a high-efficiency large capacity solar electric actuator, an IP protection certification, an appearance patent, and a design patent. The company has been recognized as a National High-Tech Enterprise and a Guangdong Province "Specialized and New Little Giant" Enterprise, and was qualified as a high-quality supplier of domestic PV head enterprises in 2023.
Why TOMUU’s Linear Actuators Stand Out
Since entering the solar energy market in 2017 with the U10 series, which received broad recognition from the solar actuator industry, TOMUU has built out a product line spanning single electric, multi electric, mechanical linkage, fixed adjustable, photothermal, and damper configurations. Its value proposition centers on helping solar tracking systems follow the sun accurately and reliably, increasing received solar radiation, and improving overall power generation, while also supporting industrial automation applications. For buyers evaluating a linear actuator for tracker, mechanical linkage, photothermal, or damping needs, TOMUU’s documented load ratings, IP66/IP68 protection levels, wide ambient temperature tolerance, and track record across 100 MW to 394 MW projects provide a data-backed basis for evaluation.
https://www.tomuu.com/
Dongguan TOMUU Actuator Technology Co., Ltd.
