Underwater plasma cutting is a specialized method where the cutting torch and workpiece are submerged in water. The water acts as a coolant, noise suppressor, and fume controller, making the process safer, quieter, and cleaner compared to conventional or dry plasma cutting.

Specifications

  1. Cutting Thickness Range

    • Standard capacity: 6mm – 75mm.

    • Heavy-duty systems can cut up to 150mm (6”) depending on power source.

  2. Cutting Current (Amperage)

    • Typically 100A – 800A, depending on thickness and application.

  3. Cutting Accuracy & Tolerance

    • Tolerance: ±0.5mm – 1.0mm.

    • Edge squareness: 2°–4° bevel angle.

    • Improved accuracy compared to conventional cutting because water stabilizes the arc.

  4. Kerf Width (Cut Width)

    • 1.5mm – 4mm depending on plate thickness.

  5. Edge Quality

    • Cleaner edges with less dross compared to dry cutting.

    • Water reduces heat-affected zones (HAZ), preventing warping on thinner sheets.

  6. Environmental & Safety Benefits

    • Noise reduction: Up to 90% quieter than dry plasma.

    • Fume suppression: Water absorbs smoke, dust, and harmful particles.

    • Cooler operation: Reduces heat distortion and extends consumable life.

  7. Compatible Materials

    • Mild Steel

    • Stainless Steel

    • Aluminum

    • Alloy Steels

Applications

  • Shipbuilding and marine industries.

  • Heavy fabrication (bridges, tanks, pipelines).

  • Nuclear and environmentally sensitive projects (due to fume suppression).

  • Cutting thick steel plates with minimal distortion.