What is the general pressure of the air source used in the factory

The range of air supply pressure commonly used in factories is usually 0.4MPa to 0.8MPa the specific values vary by industry, equipment type and process requirements. The following is a detailed analysis:

1. Core Pressure Range and Industry Adaptability

1. general Industrial Scenarios
   • 0.4 MPa-0.6MPa suitable for most pneumatic tools (such as pneumatic wrenches, pneumatic clamps), automation equipment (such as SMT mounter) and valve actuators. For example:
     • light pneumatic wrench: 0.5MPa can provide stable torque to ensure that the screw tightening force reaches the standard.
     • Pneumatic fixture: 0.45MPa can not only clamp the workpiece firmly, but also avoid deformation in high-precision processing.
     • SMT equipment: 0.5 - 0.55MPa to prevent electronic components from being damaged or not firmly mounted due to high pressure.
2. High load or special demand scenarios
   • 0.6 MPa-0.8MPa: Used for heavy equipment (such as large pneumatic wrenches, large-diameter valves) or high-pressure media pipelines. For example:
     • heavy-duty pneumatic wrench: 0.6 - 0.7MPa to meet the needs of high-strength tightening.
     • Petrochemical high-pressure pipeline: 0.8 - 1.0MPa to ensure that the valve is tightly sealed under high-pressure medium.
     • Emergency shut-off valve: 0.6 - 0.8MPa to achieve rapid closure within 0.5 seconds in case of an accident.

2. equipment type and pressure matching

1. pneumatic tools
   • light tools (such as small pneumatic screwdrivers):0.3 - 0.5MPa.
   • Heavy-duty tools (such as pneumatic presses):0.6 - 0.8MPa.
2. Pneumatic valve
   • film actuator: 0.2 - 0.7MPa (more than 0.7MPa may cause film aging).
   • Piston cylinder: 0.4 - 1.0MPa (suitable for large diameter or high pressure pipeline).
3. Pneumatic diaphragm pump
   • general model: 0.2 - 0.7MPa (such as QBK series pressure range up to 6.9Bar).
   • Mining diaphragm pump: up to 0.5 - 60MPa (special high pressure scene).

3. Industry Differences and Safety Standards

1. mechanical manufacturing
   • the air supply pressure shall be stable at 0.5 - 0.7MPa to avoid equipment failure (such as workpiece displacement and insufficient torque) caused by pressure fluctuation.
2. Electronic Manufacturing
   • strictly controlled at 0.5 - 0.55MPa to prevent component damage or poor mounting. At the same time, the air source is required to have extremely high cleanliness (oil content <0.01 mg/m & sup3;, solid particles <0.1 μm).
3. Food Processing
   • the pressure range is 0.4 - 0.6MPa (such as 0.5MPa commonly used in sealing machines), and the gas source must be strictly purified to meet food safety standards.
4. Safety specification
   • when the compressed air pressure exceeds 0.2MPa, direct contact with the human body may cause serious injury (such as subcutaneous emphysema, organ rupture), and the risk should be controlled by safety valve, pressure regulating device, etc.

4. Pressure Fluctuation and System Optimization

• main pipe pressure: Usually not less than 0.7MPa to compensate for pipeline pressure loss.
• Gas point pressure: Adjust to 0.4 - 0.5MPa, and realize precise control through pressure reducing valve.