Electrode holder can’t clip in the joint of electrode and electrode parts, threaded holes should be sandwiched between two electrodes head parts between the white line, at the same time, in front of the gripper clamping electrode, want to use compressed air to the electrode surface and gripper blowing off, to ensure that current and heat flow between the electrodes and gripper conduction is good, prevent damage of bowl cause holder, so as to extend the use of the gripper.
