Air compressor buying guide

Commercial air compressors are widely used in various types of production workshops and factories. Modern air compressors are not only of stable quality but also energy-saving and environmentally friendly. How to buy high-quality air compressors is important.

This article will introduce in detail the points that should be considered before purchasing an air compressor

Before adding an air compressor to your business, please think about the following points:

1. What size of air compressor
This is the first point to pay attention to before purchasing an air compressor. If the size is too large, it may cause a waste of resources, and if the size is too small, it may cause a mismatch with production needs. Choose a suitable air compressor based on the company's current production capacity data and future plans



If you really don't know how to match the data, you can communicate with professional air compressor company sales staff, who will give professional reference opinions.

Generally speaking, process improvements may reduce air demand; it is possible to expand the scale of operations without increasing air production.

2. What type of air compressor to choose?
According to the working principle, air compressors are mainly divided into: piston compressors, screw compressors and scroll compressors. Piston compressors are relatively cheap, but they cannot exhaust continuously and the compressed air quality is not high. The use range of scroll air compressors is limited, and the energy saving effect is poor when running at low speed.
Screw air compressors are energy-saving, stable, low maintenance cost, and widely applicable, so they are currently in the largest demand in the market


3. What kind of lubrication method
Air compressors are divided into two types of lubrication: oil-free and oil-injection. Oil-free air compressors mainly have dry and water lubrication, and the output air purity is high. They are often used in industries with high quality requirements such as food and medical care

Oil-injection air compressors are cheaper, but the compressed air purity is low and there will be oil stains.

You can choose oil-free air compressor or oil-injection air compressors according to your industry and the air quality requirements.

4. Pressure, flow, power
The pressure of an air compressor refers to the pressure of its exhaust gas, generally expressed in bar and MPA. Pressure is a measure of the degree to which the air compressor can compress the gas.

Flow refers to the volume of gas discharged per unit time at the required exhaust pressure. Flow rate is usually expressed in cubic meters per minute (m³/min) or cfm


The power of an air compressor refers to the power of the drive motor or diesel engine, usually expressed in kW or hp. Power is a measure of the driving energy required by the air compressor and directly affects its operating efficiency.