The air pressure range for factory compressed air varies depending on the application and equipment requirements, but general standards exist. The following is a detailed analysis:
1. conventional pressure range
- general Criteria:
the pressure of compressed air for industrial use is usually set 0.7MPa to 1.0MPa(7 ~ 10bar) this range can meet the needs of most pneumatic tools and automation equipment. - National Standards:
according to relevant regulations, the normal pressure range of industrial compressed air is 0.6MPa to 0.8MPa(6 ~ 8bar), taking into account equipment requirements and energy consumption optimization.
2. pressure requirements for different scenarios
- general application
- pneumatic tools: Such as pneumatic wrench, grinding machine, need 6 to 8bar stabilize air pressure.
- Automation equipment: Sensors, control valves, etc. are usually required. 7 to 10bar.
- Specific high pressure demand
- heavy Machinery such as hydraulic power unit, pneumatic fixture, may need above 1.2MPa(12bar).
- painting process: Need for painting in automobile manufacturing 10bar left and right to ensure the quality of the paint.
- Low Voltage Applications
- food/Medicine: Some devices only need below 0.5MPa(5bar) avoid high pressure shock.
- Laboratory precision instruments may require 0.2 ~ 0.4MPa low pressure gas source.
Examples of 3. industry differences
| Industry | air pressure range | typical applications |
|---|
| machining | 8 to 10bar | CNC machine tools, pneumatic fixtures |
| rubber/Food | 2 to 4bar | forming equipment, packaging machinery |
| painting/Automotive Manufacturing | 10bar | painting, pneumatic lifting table |
| textile | 0.1 ~ 0.2MPa | air-flow spinning and air-jet loom |
design principles of air compression station in 4. plant
- supply pressure strategy:
the outlet pressure of the air compression station is usually set 0.8MPa, the actual use pressure of the equipment end is 0.6 ~ 0.7MPa, To compensate for line pressure loss. - Energy Saving Considerations:
excessive pressure will increase energy consumption, and the minimum necessary pressure should be selected according to the equipment requirements to avoid energy waste.
Key considerations for 5. selection of air pressure
- device compatibility:
the pressure requirements in the equipment manual shall be matched to prevent overload or insufficient efficiency. - Security:
high pressure may cause pipe burst or equipment damage, need to install pressure reducing valve and safety valve. - Economy:
for every 1bar increase in pressure, energy consumption may increase by 6% to 8%, and efficiency and cost need to be balanced.
Summary
the compressed air pressure of the factory should be selected according to the specific process and equipment, and it is recommended to control the general scene. 0.7 ~ 1.0MPa, special needs can be adjusted 0.5 ~ 1.2MPa. Reasonable setting of air pressure can not only ensure the stability of production, but also reduce energy consumption and maintenance costs.
