Why do laser cutting machine servo cutting heads

Why need to configure the servo metal laser cutting machine cutting head, metal laser cutting machine is in use, the cutting head will be set according to the cutting path to walk, but different material and different thickness, different cutting way, laser cutting head height is need to adjust the control. Metal laser cutting machine in addition to choose according to cutting conditions suitable for cutting nozzle and pressure parameters, the cutting head and steel plate between highly needs to increase or decrease according to cutting material thickness, of different thickness steel plate, using different parameters. The height of the nozzle at the same time also should be adjusted accordingly. Metal laser cutting machine in use process, in order to ensure the high quality of incision, the height of the nozzle to the surface of a steel plate must be kept consistent. Due to the laser cutting machine is fast, the operator with the eyes, can't adjust the operating mode with the hand, especially when cutting thin plate, or surface texture, smoothness is not high or cutting processing environment, under limited maintain stable cutting height is important.
metal laser cutting machine to make up for the instability problem manually adjust the cutting height control, equipped with imported servo capacitance block. Whether more than cutting thick steel plate with a capacitance raised servo cutting head, the height can be consistent.