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• How to choose the right hydraulic oil for photovoltaic pile drivers under different climatic conditions?

  Jan 09, 2025

      The hydraulic oils commonly used in photovoltaic pile drivers mainly include anti-wear hydraulic oil, low-temperature hydraulic oil, etc. Due to different climatic conditions in different regions, there are certain differences in the selection of hydraulic oil. The following are the specific situations:   High temperature areas Applicable hydraulic oil types: usually choose ISO 46 anti-wear hydraulic oil or other hydraulic oil with higher viscosity. Analysis of the cause: The ambient temperature in high-temperature areas is high. Hydraulic oil with higher viscosity can maintain better stability and performance at high temperatures, which can reduce the risk of leakage caused by the thinning of hydraulic oil at high temperatures, and provide good lubrication, cooling and sealing for the hydraulic system of the pile driver, ensuring the normal operation of the system in high-temperature environments, such as desert areas in the Middle East.   Cold Regions Applicable hydraulic oil types: Generally recommended to use L-HV low temperature hydraulic oil or L-HS ultra-low temperature hydraulic oil   Cause analysis: In cold regions, such as China's northeast region and parts of Russia, the winter temperature often drops to very low levels. The viscosity of ordinary hydraulic oil will increase significantly at low temperatures, and may even solidify, making it difficult to start the hydraulic system. , poor operation and other problems. Low-temperature hydraulic oil has a low pour point and good low-temperature fluidity, and can quickly reach various lubrication parts in a low-temperature environment, ensuring that the hydraulic system starts and works normally under cold conditions.   Temperate regions Applicable hydraulic oil types: ISO 32 or ISO 46 anti-wear hydraulic oil are more commonly used.   Analysis of the reasons: The climate in temperate zones is relatively mild, and the temperature range is relatively small. These two types of hydraulic oils can basically meet the use needs of temperate zones most of the time. ISO 32 hydraulic oil has a lower viscosity and better fluidity in seasons or environments with slightly lower temperatures. It is suitable for some photovoltaic pile drivers that require higher response speeds; ISO 46 hydraulic oil can provide better stability and lubrication performance in high temperatures in summer or when the equipment is under heavy load.   High humidity areas Applicable hydraulic oil types: anti-wear hydraulic oil with good anti-emulsification and anti-rust properties, such as Mobil DTE 20 series.   Cause analysis: In high humidity areas, such as Jiangnan region in China and some countries in Southeast Asia, the moisture content in the air is high, and the hydraulic oil is easily contaminated by moisture and emulsified and deteriorated, affecting the normal operation of the hydraulic system. Therefore, it is necessary to use hydraulic oil with good anti-emulsification properties, which can quickly separate from water to prevent the occurrence of emulsification. At the same time, good rust resistance can protect the metal parts of the hydraulic system from corrosion.  

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