At present, there are two types of brands in the Longmen plasma cutting machine market, one is domestic brands and the other is foreign brands. Among these two types of brands, the price of CNC plasma cutting machines is generally higher for foreign brands than for domestic brands, usually around 70000 to 100000 yuan. However, the quality of Longmen plasma cutting machine products from foreign brands is generally much better than that of domestic products. However, not all components of these foreign products are produced abroad, only some important components are produced abroad and then processed by Chinese manufacturers.

The operation of a CNC plasma cutting machine should be carried out while ensuring safety, and the correct use of the CNC plasma cutting machine should be emphasized. The following is an introduction to the operation manual of the CNC plasma cutting machine.

（1） Transfer the drawn or existing correct CAD (DWG format) files to FASTCAM nesting software on the computer;

（2） Arrange the templates in the nesting software according to the actual required number of workpieces, pay attention to the thermal deformation stress of the board during cutting, adjust the starting lead position of the cutting to reduce deformation, and convert the file into NC format file code without errors, and store it in a randomly carried USB drive;

（3） Turn on the power of the Hubei CNC plasma cutting machine, move the machine head to a position that does not hinder the placement of the sheet, try to place the sheet as flat as possible with the track, and after placing the sheet, move the machine head to the starting cutting positioning point in the lower left corner, and clear the machine coordinates;

（4） Check the gas and protective gas pressure of the Hubei CNC plasma cutting machine, whether the gas pipe is damaged, whether the gas pipe joint is leaking, and inspect the cutting nozzle. After the inspection is completed, turn on the preheating oxygen ignition,
Adjust the flame size based on experience and plate thickness, clean up flammable objects near the Hubei CNC plasma cutting machine, and start preheating using epitaxial perforation;

（5） During the cutting process of the CNC plasma cutting machine, if the Hubei CNC plasma cutting machine encounters uneven sheet metal, adjust the height of the cutting nozzle at any time. If a small bottle gas cylinder is used, observe the gas pressure gauge at any time during the cutting process of the Hubei CNC plasma cutting machine to prevent gas shortage;

（6） After the CNC plasma cutting machine completes the cutting, the CNC cutting machine manufacturer uses professional tools to remove the cutting workpiece, clean the residual slag, and pay attention to preventing burns.