What are the advantages of the PAC system?

• A. Faster cutting speeds
• B. No preheat
• C. Less distortion
• D. All the above

Answer: (D)

Plasma arc cutting (PAC) uses a high-velocity, ionized gas to melt metal at the cut line. That concentrated, high-energy arc lets you cut through metal much faster than traditional methods, boosting productivity. Since the heat is focused and the arc is precise, you can start cutting without preheating in many cases, and the heat-affected zone is smaller. With less heat spreading into surrounding material, distortion is reduced, helping keep edges flat and parts within tolerance. Taken together, these benefits explain why PAC is advantageous: faster cutting, no preheat, and less distortion.