Steel Plate Plasma Cutting Services

  • Plasma
  • Plasma

Plasma Cutting Services for Steel Plate

Our plasma head delivers a contour plasma cut and gives significant quality assurance and lead time improvements.

Advantages of plasma cut steel:

  • Angular deviations are reduced resulting in improved quality of the cut surface
  • Plasma cutting has the capacity to internally produce 1:1 ratio holes and slots between 5-25mm
  • Achieve significant improvement in cut quality and contour accuracy on inner and outer contours and True Hole processes
  • Eliminates the need for any drilling or machining
  • Counter sinking and edge quality are implicit in our process with very minimal final dressing required
  • Fastest order turn around of all plate cutting services
  • Cuts at lower temperatures reducing heat affected zones and improving cut quality. This makes plasma cutting ideal for intricate designs

Click the link below to make an enquiry about plasma cut steel from Brown McFarlane.

The Plasma Cutting Process

Plasma cutting is a process used to cut non-ferrous metals like aluminium and steel plate. Plasma is formed when you raise the temperature of a gas to a very high level in order for it to ionize. The resulting state of matter forms with conductive properties very similar to metal.

As the temperature rises, gas molecules break apart causing atoms to split and electrons to separate from nuclei. The movement of these electrons produce positively charged ions that collide with one another to produce huge amounts of intense energy. It is this energy that gives plasma its incredible and unique cutting power.

Plasma cutting machines can harness and control this amazing power and use it to create an incredibly precise and powerful cutting tool. Firstly, pressurized gas is sent down a small channel that contains a negatively charged electrode. By introducing power to this electrode and touching the nozzle against the workpiece, you create a circuit. This creates a spark between the work piece and the electrode.

This spark heats the gas travelling through the channel and therefore creates plasma. At very high speed, this cycle causes a steady stream of focused plasma that can reach around 16,649° Celsius (30,000° Fahrenheit). The incredible speed and intense temperature reduces the metal being cut to molten slag.

To ensure a cut is protected from oxidation, a plasma cutter will also feature an additional set of channels that supply a continuous flow of shielding gas. The pressure created by this gas is released around the cutting area and effectively confines the range of the plasma beam.

Capabilities of Brown McFarlane's Plasma Cutting Services:

 Plate Dimensions  Capabilities
 Thickness

 Up to 45mm - depending on end use

(46mm to 100mm please see Infinity Plasma Contour Bevelling)

 Width  Up to 4 metres
 Length  Up to 24 metres