Hydraulic oils, hydraulic liquids, or hydraulic fluids is a major part of hydraulic systems, through which power is conveyed in hydraulic equipment. Hydraulic liquids are primarily used in conveying kinetic and potential energy in a hydraulic system. Hydraulic liquids generally provide a flow of volume in hydrostatic motors and pumps. Hydraulic fluids also help in decreasing the wear and tear of parts involved in friction in the piston assembly. Hydraulic fluids also protect the internal systems from corrosion and erosion caused by external environments. Functions of hydraulic fluids have changed by a great magnitude in the last few years. Hydraulic systems are designed to function optimally during the operations at high temperatures, high pressures, and different complex circumstances. Ordinary hydraulic fluids are primarily made of mineral oils and water, which offer very less compressibility and flexibility of usage.
Demand for various types of hydraulic systems is increasing constantly, as the modern industry requires high speed and efficiency at higher operating pressures and temperatures. Hydraulic fluids are developed to perform tasks such as lubrication, energy transmission, and removal of heat from parts of the machinery. Selection of an optimum hydraulic fluid highly depends on basic properties and the technicality of grade of hydraulic fluid with respect to the hydraulic machinery. An ideal hydraulic fluid should be selected on the basis of the following properties: hydrolytic stability, thermal stability, low tendency to cavitate, low chemical corrosiveness, high anti-wear characteristics, constant viscosity, long life, total water rejection regardless of temperature, and low cost. Major functions served by hydraulic fluids include efficient transmission of power and protection of intrinsic hydraulic components from wear and tear. A majority of hydraulic fluids are used in large machines for various purposes.
Increasing demand for rapid construction, growing infrastructure, and increased use of heavy machinery in civil engineering projects are factors projected to drive the global market for hydraulic fluids during the forecast period. Most of the hydraulic fluids are based on hydrocarbons and mineral oil, which are considered toxic and hazardous for the environment. Hydraulic fluids need to comply with several environmental and regulatory obligations for their disposal. Manufacturers provide special guidelines and specifications for safe handling and storage of hydraulic fluids. Splashed or spilt hydraulic fluids need to be properly absorbed with specified absorbents so as to avoid the contamination of groundwater and sewerage systems. High toxicity, stringent environmental regulations, and growing popularity of organic hydraulic fluids are the major restraints for the hydraulic fluids market.
The market for hydraulic fluids in Asia Pacific (APAC) is likely to expand at a significant rate during the forecast period, due to high demand for hydraulic fluids and their increased consumption in heavy construction equipment used for construction and civil engineering projects. Risen demand for hydraulic fluids in APAC is also attributable to rapid infrastructure development, rapid industrialization, growth of the economy, and high capital investments by major industrial players in the region. APAC is anticipated to witness high growth in the consumption of hydraulic fluids.