Plasma Cutters

Plasma cutters are precision power tools designed to cut through electrically conductive sheet metals. They are specialised pieces of welding equipment and can be used on varying thicknesses and metal types, with a higher current required in order to cut thicker sheets of metal. Plasma cutters can be hand-held tools, similar to a blow torch in size, or can be larger, automated through a CNC machine (Computer Numerically Controlled) for more controlled and precise cutting.

What is plasma?

Plasma is ionized gas and is the fourth state of matter, containing almost equal numbers of positive ions and electrons and exhibiting some properties of gas; it is a very good conductor of electricity. Plasma can also be described as an electrically heated gas stream.

How do plasma cutters work?

Plasma cutters work by generating a plasma stream which is then guided to cut through the chosen electrically-conductive metal, an important requirement for plasma cutting. The plasma stream is generated when compressed gas is forced through a focused nozzle at high speed, with an electrical arc created within this gas by an electrode either near to or integrated into the cutter nozzle and the workpiece itself. This ionizes the gas, creating an electrically conductive channel of plasma, and completes the electric circuit back to the plasma cutter through a grounding clamp. The heat delivered by this electric current, combined with the high velocity, allows the stream to cut through the chosen material, with the gas also acting to blow the molten metal away, resulting in a cut being left behind.

What type of metals does plasma cut through?

Plasma cutting is an effective way of cutting both thin and thick electrically conductive materials, even up to 6 inches thick, making them the ideal tool for cutting sheet metal. Due to the cutting method being a stream of ionized gas rather than a blade, plasma cutters can even be used to create cuts in curved and angled shapes. As plasma cutters can only be used on electrically conductive materials, woods and plastics cannot be used with a plasma cutter and only certain metals can. Typical materials cut with plasma cutters therefore include:

  • Aluminium
  • Brass
  • Copper
  • Steel
  • Stainless Steel

What are plasma cutters used for?

Plasma cutters are mostly used in automotive repair, construction, restoration and salvage and scrapping applications due to the ease with which it can cut and shape even larger pieces of metal. They have also been used in metal artwork, either as the main piece or in creating stencils and templates, as they allow for precise shapes to be cut without the need for additional tooling, allowing artists to create sharp, clean lines.

CNC plasma cutters are often used the HVAC industry (heating, ventilation and air conditioning) as the systems can be processed as flat patterns, which are then cut by the plasma torch. CNC plasma is also seen in decorative works, such as domestic and commercial signage, wall art and garden art and furniture.


...
Read more Read less

Filters

Viewing 1 - 3 of 3 products
Results per page
Description Price Cutting Range Dimensions Severance Cut Weight Model Number
RS Stock No. 918-5119
Mfr. Part No.05785
BrandSIP
£525.69
Each
Units
10mm 520 x 220 x 475mm 12mm 9.8kg Plasma 46
RS Stock No. 141-2958
Mfr. Part No.60010
BrandGCE
£56.86
Each
Units
- 200cm - - 60010
RS Stock No. 141-2949
Mfr. Part No.PLPM040
BrandGCE
£765.77
Each
Units
12 → 20mm 450 x 145 x 290mm 25mm 6kg PLPM040
Related Products
The SIP HG2600A ARC/TIG Inverter is equipped with ...
Description:
The SIP HG2600A ARC/TIG Inverter is equipped with an integrated Voltage Reduction Device (VRD), Lift-TIG start function, anti-stick circuitry, and dinse sockets. Supplied with accessories. 230v (22amp) input supply20amp - 250amp ARC output current Super high 250amp @ 60% duty cycle1.5 - 10.5mm weld thickness (mild steel)1.6 - 5mm maximum ...
The SIP HG2300MP Inverter Welder can take of ...
Description:
The SIP HG2300MP Inverter Welder can take of most tasks, as it boasts TIG, and ARC functions. Hi-Tech technology and high 50% duty cycle give it powerful performance and reliability. 230v (16amp) input supply MIG, TIG, and ARC triple function Infinitely variable weld output settings30amp - 200amp MIG output current20amp ...
The SIP T1400 ARC Inverter is a multi-functional ...
Description:
The SIP T1400 ARC Inverter is a multi-functional inverter welder equipped with on-demand fan cooling, scratch-TIG start function, anti-stick circuitry, and dinse sockets. Supplied with accessories. 230v (13amp) input supply20amp - 140amp peak current range1.6mm - 3.2mm maximum electrode size1.5mm - 7.0mm weld thickness (mild steel)Generator friendly and super lightweight ...
The SIP T251P-ARC Transformer Welder has infinitely variable ...
Description:
The SIP T251P-ARC Transformer Welder has infinitely variable stepless output, giving superb versatility, plus an electrode-to-power gauge, which enables rapid setting of output current. 230v (20amp) / 400v (10amp) supply85amp - 250amp (peak) output current2.5mm - 5.0mm maximum electrode size2.0mm - 9.0mm weld thickness (mild steel)Electrode-to-power gauge for rapid setting ...