Let’s talk about the conclusion first: if you cut thickness mostly thicker than 6mm , autofocus help it faster piercing. if you  always change cut material from brass to stainless steel and carbon steels, the auto focus automatically read them, if you always cut thin metal thinner than 6mm, and not always change cut material, the autofocus no use. Whats the advantages of autofocus laser cut head? With the automatic focus function, the machine can automatically and quickly adjust the focus to the most appropriate position when processing workpieces of different materials and thicknesses. This can significantly improve the processing efficiency of the laser cutting machine, and the time for perforating thick plates will also be greatly reduced.  ...                        
                                                            
                 
            
                                            
                                
                                        
                                                               
                                                                                        
                                
                                                                
                            oxygen flame cutting 80mm thick steel                        
                                                            
                 
            
                                            
                                
                                        
                                                               
            
                                            
                                
                                        
                                                               
                                                                                        
                                
                                                                
                            Independent research and development, third in China, specialized and refined, the most cost-effective CNC plasma system