What is the main difference between a traditional oil-lubricated air compressor and an oil-free water-lubricated air compressor?–Shared by Sollant

There are major differences between traditional oil-lubricated air compressors and oil-free water-lubricated air compressors in terms of lubrication methods, lubrication media, and application fields. Here are the main differences between them:

Lubrication method:

• Traditional oil-lubricated air compressors: Traditional oil-lubricated air compressors use lubricating oil as the lubricating medium, and form a lubricating layer on the surface of moving parts through the oil film to reduce friction and wear.
• Oil-free water-lubricated air compressor: The oil-free water-lubricated air compressor uses water as the lubricating medium, and forms a lubricating layer on the surface of the moving parts through the water film to provide lubrication and cooling effects.

Lubricating medium:

• Traditional oil-lubricated air compressors: Traditional oil-lubricated air compressors use lubricating oil, usually synthetic oil or mineral oil. These oils have good lubricating properties and heat resistance to provide effective lubrication under high temperature and pressure conditions.
• Oil-free water-lubricated air compressor: Oil-free water-lubricated air compressor uses water as the main lubricating medium, usually combined with additives to provide additional lubricating performance and anti-corrosion performance. Water has good lubricating properties and thermal conductivity, and is also environmentally friendly.

Application fields:

• Traditional oil-lubricated air compressors: Traditional oil-lubricated air compressors are widely used in various industrial fields, including automobile manufacturing, machining, petrochemical, etc. They are suitable for processes with high demands on equipment reliability and robustness.
• Oil-free and water-lubricated air compressors: oil-free and water-lubricated air compressors are mainly used in industries that require high air quality and are sensitive to environmental pollution, such as food and pharmaceutical industries. They are also suitable for industries with strict requirements on energy consumption, such as electronics and semiconductor manufacturing.

Maintenance needs:

• Traditional oil-lubricated air compressors: Traditional oil-lubricated air compressors need to replace lubricating oil regularly, and perform operations such as oil filtration and oil seal maintenance. In addition, oil lubrication systems also need to deal with waste lubricating oil and related environmental pollution problems.
• Oil-free and water-lubricated air compressor: The oil-free and water-lubricated air compressor does not need to change the lubricating oil regularly, which reduces the need for maintenance work and lubricating oil disposal. However, water lubrication systems require regular inspection and maintenance to ensure water quality and additive effectiveness.

Generally speaking, there are differences between traditional oil-lubricated air compressors and oil-free water-lubricated air compressors in terms of lubrication methods, lubrication media, and application fields. The selection of a suitable air compressor type should be based on specific application requirements, process requirements and environmental considerations.

The brand “Sollant” specializes in the R&D, manufacturing, sales and after-sales of compressors, oil-free compressors and hosts, special gas compressors, various air compressors and post-processing equipment. Provide customers with high-quality, environmentally friendly and efficient air system solutions and fast and stable technical services. Sollant Corporation is customer-centric. Customer satisfaction is the purpose of our Sollant people.

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