Why do screw compressors need oil?

Why do screw compressors need oil?

Oil-injected screw compressors require oil to perform several key functions:

1.Cooling

It helps to dissipate the heat generated during the compression process and prevent overheating. If the temperature of the compressor is too high, the main unit or all rotating parts will be subjected to excessive stress and their service life will be shortened.

2. Lubrication

Prevents friction and wear of moving parts, especially rotors. Metal-to-metal contact can cause operating problems and premature failure.

3. Seals

Creates an effective seal between the rotor and the housing for efficient compression.

4. Cleaning and Filtering

Captures pollutants and impurities from incoming air to protect internal components.

5. Noise Reduction

Reduces compressor noise by acting as a sound barrier.

Using ordinary lubricants and improper maintenance can negatively affect the life of the machine, overall performance and energy efficiency.

When should you change your screw compressor oil?

There are several factors to consider when determining when it is time to change your screw compressor oil.

operation hours

The number of hours the compressor has been running.

Oil Type

Different oils have different service lives.

Compressor load

Higher loads may require more frequent oil changes.

Oil Filtration

Is the oil filtration system working properly to maintain oil quality?

Environmental conditions

Severe operating environments such as high temperature, high humidity and excessive dust may require more frequent oil changes.