Changing shape of the can

Changing shape of the can body (apple-like shape), after a certain production time

Cause 

• Insufficient cooling
   
  • clean cooling circuit
     
  • change cooling additive / lubricant in the chiller
     
  • clean or change main- and micro-filter in cooling system (see pictures below)
    
            

• Check insulation
  • ​​​​​​​feel hot spots in the entire secondary circuit by hand or use IR camera if available.
     
• Check Z-guide for broken parts (nosepiece or main Z – bar or, depending on welder type, intermediate Z-bar)