In general, when the CNC plasma cutting machine is shipped from the factory, it is specific to different materials and thicknesses of materials to be cut. Customers need to combine various factors when choosing the cutting speed:
The material of the workpiece is different. According to different cutting materials, the cutting speed is also different. Common cutting materials: carbon steel, stainless steel cutting speed, cast iron is slower, followed by aluminum, the slowest is copper, because copper and aluminum are more difficult. Cutting, the cutting speed is much slower than the first two, and the cutting thickness of plasma cutting copper and aluminum of the same power is much smaller than that of stainless steel and carbon steel.
The model of CNC plasma cutting machine, this model is generally the output current of plasma cutting machine, such as 40A, 60A, 100A, 200A, etc. (of course, some imported plasma such as Germany brand, the United States brand and other brands of some models. It is not based on the output current size, so we won't elaborate here. According to the power of the model, the cutting current is different, and the cutting speed is not the same. The data you gave above does not explain your choice. What brand and model of plasma cutting machine, so can not give detailed data.
CNC plasma cutting field input voltage size, the general factory power supply voltage is AC 380V, but due to different conditions at the factory site, the general voltage fluctuates between 365V and 410V, so the input voltage is also a factor affecting the cutting speed.