The shipbuilding industry primarily uses compressed air for applications such as sandblasting, painting, and sanding. To meet varying volume demands, solutions range from traditional centralized air compressor stations to containerized, skid-mounted mobile equipment. In the field of shipboard equipment, drying and purification systems are subject to even stricter requirements, particularly for FPSO shipboard equipment, which faces the most stringent standards.

The electronics industry has significant demand for compressed air. It is primarily used in airflow transportation, instruments, and pneumatic tools (such as sorting, packaging, testing, handling, assembly, etching, and other pneumatic applications), instrumentation air, nitrogen production (high-purity nitrogen for welding), and cleaning of electronic components, as well as in clean room operations.

The automotive manufacturing industry has a significant demand for compressed air, especially in automotive spraying lines, where the requirements are particularly stringent. These applications typically require oil-free compressed air with a pressure dew point of -40°C or lower, and often necessitate a silicone-free filtration system. The quality of the compressed air directly influences the final paint finish.

Different types of wind tunnels—room temperature, supersonic, and ultra-low temperature—rely heavily on compressed air. Ultra-low temperature wind tunnels are particularly demanding, requiring compressed air with a dew point below -70°C under low-pressure conditions and a CO2 content of less than 5 ppm. In addition, compressed air is used for aircraft surface spraying, power applications, instrumentation, and fuel filling protection gas, among others.

The food and beverage industry has specific requirements for the quality of air used, particularly in areas such as equipment materials, filtration, and sterilization. Compressed air is used in a variety of applications, some of which involve direct contact with food. Key uses include instrumentation, pneumatic conveying of materials, bottle blowing (PET bottle blowing typically requires air pressure of 35-45 bar), bottling/canning, packaging, inflation, and liquid mixing.

As a major consumer of compressed air, the steel and metallurgical industry has increasingly focused on energy savings in recent years. From equipment replacement to energy-saving retrofits, the goal of carbon reduction and emission reduction remains unchanged. In the steel industry, compressed air is primarily used for instrumentation, pneumatic conveying, and sintering. Steel mills typically have steam conditions, and Risheng has been using steam to achieve additional energy savings for over 20 years.

Compressed air in the petrochemical industry is widely used for instrumentation, pneumatic conveying, fermentation, waste gas treatment, dehydration, drying, and other applications. Some of these applications involve specific material requirements, while others may require an integrated skid-mounted structure.

Taking new energy vehicle batteries as an example, these batteries require a large number of lithium-ion cells. Each cell consists of several components, such as the anode, cathode, and electrolyte. Compressed air is used across a wide range of processes, from raw material handling to the preparation of core materials.

Compressed air in the pharmaceutical industry is primarily used in the production process, including mixing and granulation, drying, tableting, packaging, and moisture removal (such as in bottling and filling environments). Most applications require Class 0 high-purity, oil-free air with stringent requirements for dust particle levels and moisture content. Compressed air used in production typically requires stainless steel components. Additionally, compressed air is used for instrumentation air, where the requirements are less stringent compared to production applications.

From test rigs, robotic arms, and laser cutting to precision instruments, solenoid valves, and pneumatic tools, the quality of compressed air affects not only the production process but also the service life of the air-using equipment itself. Compressed air systems with low levels of oil, dust, and humidity can extend the life of equipment components.