Overview of Torque Tube for Solar Tracking System
Torque tubes are pivotal components in solar tracking systems, ensuring that all PV modules track the sun’s path in unison. These tubes, available in shapes such as circular, square, pentagonal, octagonal, or D, are coated with galvanizing to ensure durability and longevity. Their primary function is to connect all PV modules, allowing them to move in tandem. By using torque tubes in solar tracker designs, both bending and torsional forces are effectively managed. As solar trackers adjust the orientation of solar panels to follow the sun’s trajectory, they maximize energy capture. This results in a significant increase in energy generation, making your solar investment even more worthwhile. With the global surge in energy demand, single-axis trackers, which rotate around a singular axis, have gained immense popularity. At UNIACERO, we pride ourselves on meeting this demand, as evidenced by our growing market share.
Available Sizes of Torque Tube for Solar Tracking System

Our tubes come in various dimensions, ensuring compatibility with different solar panel setups. Whether you’re looking for tubes with an octagonal exterior surface or an interior one that corresponds with the exterior, we’ve got you covered. One of the unique features of our tracker torque tubes is the flat datum surface on the octagonal exterior, specifically designed for mounting a photovoltaic panel. Additionally, a weld seam runs parallel to the longitudinal axis, ensuring structural integrity. With varying wall thicknesses available, our tubes can be tailored to meet specific load-bearing requirements, ensuring optimal performance and durability in any setting.
| NPS | O.D. | W.T. | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN | Inch | mm | SCH5S | SCH10S | SCH10 | SCH20 | SCH30 | SCH40 | SCH60 | SCH80 | SCH100 | SCH120 | SCH140 | SCH160 | Sth | XS | XXS |
| 50 | 2″ | 60.3 | 1.65 | 2.77 | – | – | – | 3.91 | – | 5.54 | – | – | – | 8.74 | 3.91 | 5.54 | 11.07 |
| 65 | 2 1/2″ | 73 | 2.11 | 3.05 | – | – | – | 5.16 | – | 7.01 | – | – | – | 9.53 | 5.16 | 7.01 | 14.02 |
| 80 | 3″ | 88.9 | 2.11 | 3.05 | – | – | – | 5.49 | – | 7.62 | – | – | – | 11.13 | 5.49 | 7.52 | 15.24 |
| 90 | 3 1/2″ | 101.6 | 2.11 | 3.05 | – | – | – | 5.74 | – | 8.08 | – | – | – | – | 5.74 | 8.08 | – |
| 100 | 4″ | 114.3 | 2.11 | 3.05 | – | – | – | 6.02 | – | 8.58 | – | 11.13 | – | 13.49 | 6.02 | 8.56 | 17.12 |
| 125 | 5″ | 141.3 | 2.77 | 3.4 | – | – | – | 6.55 | – | 9.53 | – | 12.7 | – | 15.88 | 6.55 | 9.53 | 18.05 |
| 150 | 6″ | 168.3 | 2.77 | 3.4 | – | – | – | 7.11 | – | 10.97 | – | 14.27 | – | 18.26 | 7.11 | 10.97 | 21.95 |
| 200 | 8″ | 219.1 | 2.77 | 3.76 | – | 6.35 | 7.04 | 8.18 | 10.31 | 12.7 | 15.09 | 18.26 | 20.62 | 23.01 | 8.18 | 12.7 | 22.23 |
| 250 | 10″ | 273.1 | 3.4 | 4.19 | – | 6.35 | 7.8 | 9.27 | 12.7 | 15.09 | 18.26 | 21.44 | 25.4 | 28.58 | 9.27 | 12.7 | 25.4 |
| 300 | 12″ | 323.9 | 3.96 | 4.57 | – | 6.35 | 8.38 | 10.31 | 14.27 | 17.48 | 21.44 | 25.4 | 28.58 | 33.32 | 9.53 | 12.7 | 25.4 |
| 350 | 14″ | 355.5 | 3.96 | 4.78 | 6.35 | 7.92 | 9.53 | 11.13 | 15.09 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | 9.53 | 12.7 | – |
| 400 | 16″ | 406.4 | 4.19 | 4.78 | 6.35 | 7.92 | 9.53 | 12.7 | 16.66 | 21.44 | 26.19 | 30.96 | 36.53 | 40.49 | 9.53 | 12.7 | – |
| 450 | 18″ | 457.2 | 4.19 | 4.78 | 6.35 | 7.92 | 11.13 | 14.27 | 19.05 | 23.83 | 39.36 | 34.93 | 39.67 | 45.24 | – | – | – |
| 500 | 20″ | 508 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | 15.09 | 20.62 | 26.19 | 32.54 | 38.1 | 44.45 | 50.01 | – | – | – |
| 550 | 22″ | 558.8 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | – | 22.23 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | – | – | – |
| 600 | 24″ | 609.6 | 5.54 | 6.35 | 6.35 | 9.53 | 14.27 | 17.48 | 24.61 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | – | – | – |
Typical Production Standards of Torque Tube for Solar Tracking System
At UNIACERO, we adhere to stringent production standards to ensure the quality and reliability of our torque tubes. Our commitment to excellence is evident in every product we manufacture. While we will list all the specific production standards applied to our steel tubes, it’s essential to understand that these standards are meticulously chosen to guarantee the product’s performance, safety, and longevity. From the initial design phase to the final product testing, every step is governed by these standards. This rigorous approach ensures that when you choose our torque tubes, you’re investing in a product that not only meets but often exceeds industry benchmarks.
How to Select the Right Torque Tube for Solar Tracking System
Choosing the right torque tube for your solar tracking system is crucial for optimal performance. Begin by assessing the size and weight of the PV modules you intend to use, as this will influence the required dimensions and wall thickness of the tube. Consider the environmental conditions of the installation site. Harsher climates may necessitate more robust and durable materials. Familiarize yourself with the different shapes available and determine which would best suit your system’s design and functionality. At UNIACERO, we offer a range of tracker torque tubes, each designed to cater to specific needs. Our expert team is always on hand to provide guidance, ensuring you select a product that aligns perfectly with your requirements. Remember, the right torque tube can significantly enhance the efficiency and longevity of your solar tracking system, making it a decision worth careful consideration.



