Esab Atom Arc 7018 Acclaim description: This newest addition to the family offers the deep, penetrating arc and tough mechanical properties of the original Atom Arc 7018 with greater puddle control resulting in ease of use in out-of-position welding applications and superior arc initiation desired by many newer welders. Both novice and seasoned welders can appreciate its excellent weld performance, wide operating range and easy clean up. Greater puddle control resulting in easier out-of-position welds, superior arc initiation and ease of use with wider operating range and minimal clean-up.