@Air Compressor
2025-04-09
What is the air pressure in a general factory
The atmospheric pressure range of a typical factory is usually between0.6-0.8 Megascals (MPa) or 6-8 bar (bar)However, the specific value will be adjusted according to the industry type, equipment demand and production process. The following is a detailed analysis:
1. Conventional air pressure range
- Industry General Standards: The output pressure of air compressors in most factories (such as the machinery, electronics, and food industries) is set to0.6-0.8 MPaThis range can meet the basic needs of pneumatic tools and automation equipment.
- special scene：
- high-pressure demand: Aerospace, petrochemicals, etc. may need1.0-1.4 MPaPneumatic pressure drives precision equipment.
- low pressure demand: Laboratory or micro pneumatic equipment may only require0.4-0.6 MPa。
2. Industry segmentation standards
| industry type | pressure range | typical application |
|---|---|---|
| automobile manufacturing | 0.6-0.8 MPa | Pneumatic tools for spraying and assembly lines |
| food processing | 0.5-0.7 MPa | Packaging machinery, conveyor belts |
| medical and pharmaceutical | 0.7-0.8 MPa | Maintain positive pressure in sterile room and drive equipment |
| textile printing and dyeing | 0.6-0.8 MPa | Loom control, dye cylinder lifting |
| semiconductor manufacturing | 0.8-1.0 MPa | Wafer transfer, clean room pressure control |
3. Core principles for setting air pressure
- Device adaptability
- Pneumatic tools need to match the pressure (for example, the polishing machine needs more than 0.6 MPa). Too low will lead to insufficient power.
- Precision instruments (such as sensors) need to stabilize the pressure source, and the fluctuation amplitude needs to be controlled within ±0.02 MPa.
- process safety
- Explosion-proof scene: Air pressure needs to be controlled to avoid sparks (such as low pressure operation required for oil gas fields).
- clean environment: The semiconductor workshop requires positive pressure (102-103 kPa) to prevent dust from entering.
- Energy efficiency balance
- excessive pressure: Increase energy consumption (for every 0.1 MPa increase, energy consumption increases by 5-8%).
- Too low pressure: Equipment starts and stops frequently, shortening life.
4. Environmental impact factors
- altitude: Highland areas need to be pressurized (for example, at an altitude of 2000 meters, the air pressure needs to be increased to the standard value).
- temperature: Low temperature in winter requires compensation for air pressure (for every 10℃ drop, air pressure naturally drops by 0.7 kPa).
- humidity: Drying treatment needs to be strengthened in humid environments to prevent moisture in compressed air from corroding equipment.
5. Monitoring and adjustment recommendations
- real-time monitoring: One air pressure monitoring point is set up every 500 square meters, and the periphery of key equipment is encrypted to an interval of 10 meters.
- dynamic adjustment: Adopt intelligent control system to automatically adjust the output of the air compressor according to the production load.
- regular maintenance: Calibrate the pressure gauge monthly, clean the pipes quarterly, and replace the filter unit annually.
Reasonable selection of air pressure parameters can not only ensure production efficiency, but also reduce energy consumption and failure rate. It is recommended to refer to the “GB/T 3811-2008 Air Compressor Design Code” and industry-specific standards, and formulate an air pressure management plan in conjunction with the equipment manual.