The gas pressure of CNC plasma cutting machine is generally adjusted between 0.4~0.6MPa, which is suitable for most cutting tasks. The specific gas pressure adjustment needs to be fine-tuned according to the thickness and characteristics of the cutting material. For example, if the thick plate is cut, in order to ensure the cutting quality and speed, the gas pressure can be appropriately increased while ensuring that the arc can be started. In addition, the specific adjustment of gas pressure of plasma cutting machines of different brands may be different, so it is necessary to make appropriate adjustments according to the actual use.

1. The pre-arc gas pressure is generally adjusted to 5-10psi, which is to ensure that the initial stage of the cutting process can proceed smoothly.

2. The cutting gas pressure should be adjusted according to the material type and thickness, usually between 15-65psi.

3. The post-gas pressure is generally set at around 30-55psi, which is to ensure the quality of the CNC plasma cutting machine after cutting.

When adjusting the gas pressure, you also need to pay attention to the following points:

Do not exceed the gas source pressure beyond the range specified by the cutting machine to avoid damage to the equipment.

When debugging the air pressure value, it should be adjusted gradually to avoid being too fast or too slow to ensure the stability and safety of the CNC plasma cutting machine's cutting process.

In summary, the air pressure adjustment of the CNC plasma cutting machine is a process that requires careful adjustment according to the specific cutting conditions. Ensuring that the air pressure is within the appropriate range is the key to ensuring cutting quality and safety.