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What's the reason why the spot welding machine can't hold on? There are many reasons why a spot welding machine cannot weld properly. Firstly, the material being welded. Secondly, the power cord connected is thin and not powerful enough to weld properly. Thirdly, the machine itself is faulty. The main inspection is to check whether the high current components are burned out, and then to check whether the welding needle has poor oxidation contact and whether the spot welding electrode is short circuited.

Reasons for weak welding of spot welding machine:
1. If the current is too low, adjust the current;
2. If the contact is severely worn, replace the contact or remove it and polish it;
3. Insufficient air pressure, check if the compressor is working properly;
4. The contacts are not on the same horizontal line, causing some points to be welded firmly while others are not welded firmly.