What is the First Step to Choose an Air Compressor That is Suitable for Use in Your Factory? - Chengdu ORMD Mechanical Equipment Co.,Ltd

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What is the First Step to Choose an Air Compressor That is Suitable for Use in Your Factory?

Time:2025-11-26 15:16:58

How to choose economically efficient and energy-saving air compressors for factories is a very practical issue. The first step in selection is to accurately understand the gas usage of the factory, which is the foundation of all decisions. It is also necessary to understand the characteristics of different types of air compressors, configure the entire system to achieve energy conservation, and help users make informed decisions based on practicality and operability.

Clarify One's Own Needs

The first step in selection is to accurately understand the gas usage of the factory, which is the foundation of all decisions.

Calculate total gas consumption: Calculate the rated gas consumption (m ³/min) of all pneumatic equipment and calculate the gas consumption coefficient (usually 0.7-0.9) for using them simultaneously. The calculation formula is: total gas consumption=rated flow rate of equipment 1 x number of units x simultaneous use factor+rated flow rate of equipment 2 x number of units x simultaneous use factor+ . Be sure to reserve a margin of 10% -20% for future production expansion.

Determine working pressure: Investigate the maximum working pressure required in all gas consuming equipment, and the rated pressure of the air compressor should be 0.1-0.2 MPa (approximately 1-2 bar) higher than this pressure. Avoid selecting too high a pressure, as it may lead to unnecessary increase in energy consumption.

Select the Model And Control Mode

Choosing the appropriate type of air compressor based on gas usage characteristics is the key to achieving energy conservation.

Fixed speed (fixed frequency) air compressor: suitable for scenarios where the gas consumption is continuously stable (fluctuation range ≤ 10%). Its structure is relatively simple and the initial investment is low.

Variable speed (variable frequency) air compressor: When the factory's gas consumption fluctuates greatly (>30%) during peak and off peak periods, variable frequency air compressor is a better choice. It matches the gas demand in real time by adjusting the motor speed, avoiding idle waste, and achieving a comprehensive energy-saving rate of 30% -50%. Two stage compressure or permanent magnet frequency conversion technology performs better in terms of efficiency and response speed, also can be reference.