Plasma cutting machines are industrial equipment that uses a high-temperature plasma arc to melt and cut metal, belonging to the field of welding and cutting process equipment technology. These machines are manufactured by companies such as Hypertherm (USA), with their Powermax series offering warranties of up to six years. They are widely used in the automotive, machinery manufacturing, steel structure, and aerospace industries.
The equipment uses ionized gas to form a plasma arc, which, combined with a high-speed airflow to expel molten metal, achieves cutting. The maximum temperature can reach 8000℃. It can process non-ferrous metals such as stainless steel, aluminum, and copper, with cutting speeds 5-6 times faster than traditional oxygen cutting. Cutting thicknesses range from 0.3-30 mm, and new high-precision technology allows for cut perpendicularity of 0-1.5°. A typical model, such as the Multiplaz 3500, features a modular design, supports fully automatic and semi-automatic modes, is equipped with a digital control system and G-code file transfer capabilities, and weighs only 9 kg.
Operation requires controlling parameters such as gas flow rate and arc length. It is equipped with electromagnetic shielding, insulation devices, and protective equipment. Maintenance requires regular replacement of consumables such as electrodes and nozzles. Some models are compatible with both planar and cylindrical cutting functions, and use a filter dust removal system to treat cutting fumes, with emission concentrations meeting environmental protection standards.