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Plasma Cutters

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4 Item(s)

  1. R-Tech P30C Plasma Cutter 240V (12mm Cutting Kit)
    Code: P30C
    The R-Tech P30C plasma cutter features 8mm Genuine clean cut on mild steel and 12mm severance cut, its lightweight, portable and works of a 13A supply, features high frequency starting for easy starting of cuts and low cost long life consumables.

    £389.00 +VAT £466.80 Incl. VAT
    In stock
  2. R-Tech P30DV Plasma Cutter 110-240V (12mm Cutting Kit)
    Code: P30DV
    The R-Tech P30DV plasma cutter features 8mm Genuine clean cut on mild steel and 12mm severance cut, its lightweight, portable and works of either a 13A 240V or 32A 110V supply, features high frequency starting for easy starting of cuts and low cost long life consumables.

    • 8mm Genuine clean cut on mild steel, 6mm Genuine clean cut on alloy and stainless steel
    • 12mm severance cut on steel
    • Comes as a complete kit all you need is a supply of compressed air and a 110V/240V supply
    • High 35% duty cycle, 30amps @ 240V, 25amps @ 110V
    • Auto voltage switching between 110v and 240v - perfect for site work
    • Amperage adjustment 15-30 amps 240V Input
    • Amperage adjustment 15-25 amps 110V Input
    • 2 year collect and return UK warranty - What is this?in the unlikely event of machine failure, R-Tech will pay to collect, repair and return the Plasma Cutter to you quickly- No quibble warranty
    • HF arc starting enables easy starting of cut
    • Package Includes, R-Tech Plasma30DV plasma cutter,4.5m plasma cutter torch, earth lead, mains cable, air pressure regulator and PCL fitting, owners manual, standard torch consumables kit - 5 x tips/electrodes, 3x Shield Cups, 3 x Gas distributors

    £475.00 +VAT £570.00 Incl. VAT
    In stock
  3. R-Tech P50HF Plasma Cutter 240V (24mm Cutting Kit)
    Code: P50HF
    The R-Tech P50HF heavy duty Plasma Cutter features a massive 18mm genuine clean cut, high frequency pilot arc starting, pilot arc re-start and cost effective - long life consumables and 6M quick fit torch.

    • HF pilot arc for easy starting even on painted surfaces and HF pilot re-start - ideal for cutting mesh etc.
    • 18mm Genuine clean cut on mild steel, 24mm Severance cut on mild steel
    • 13mm genuine clean cut on alloy and stainless steel
    • 50amp cutting power at a high duty cycle of 60%
    • Digital display for amps - Ideal if you need your equipment calibrating for ISO requirements
    • Industrial quality metal chassis
    • Comes as a complete kit all you need is a supply of compressed air and a 240V 32Amp supply
    • 2 year collect and return UK warranty - What is this?in the unlikely event of machine failure, R-Tech will pay to collect, repair and return the Plasma Cutter to you quickly- No quibble warranty
    • Quick Fit Euro Torch with long life consumables
    • Package Includes, R-Tech P50HF plasma cutter, 6m LT70 plasma cutter torch, earth lead, mains cable, air pressure regulator and PCL fitting, owners manual, 5 x Tips, 5 x Electrodes
    £659.00 +VAT £790.80 Incl. VAT
    In stock
  4. R-Tech I-Cut100 Plasma Cutter 415V (40mm Cutting Kit)
    Code: PLASMA100I
    The R-Tech I-Cut 100P is a heavy duty plasma cutter with a genuine 32mm clean cut, high frequency pilot arc starting, pilot arc re-start, 6M heavy duty torch and cost effective - long life consumables

    £1,395.00 +VAT £1,674.00 Incl. VAT
    In stock

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AN EXPLANATION OF THE PROCESS

Plasma cutting is a process that is used to cut steel and other metals of different thicknesses (or sometimes other materials) using a plasma torch. In this process compressed air is blown at high speed out of a nozzle; at the same time an electrical arc is formed through that gas from the nozzle to the surface being cut, turning some of that gas to plasma. This is sufficiently hot to melt the metal being cut and moves sufficiently fast to blow molten metal away from the cut..

HOW IT WORKS?

The HF Contact type uses a high-frequency, high-voltage spark to ionise the air through the torch head and initiate an arc. This requires the torch to be in contact with the job material when starting, not sp good if you have to penetrate through things like rust or painted surfaces.

The Pilot Arc type uses a two cycle approach to producing plasma, avoiding the need for initial contact. First, a high-voltage, low current circuit is used to initialize a very small high-intensity spark within the torch body, thereby generating a small pocket of gas. This is referred to as the pilot arc. The pilot arc has a return electrical path built into the torch head. The pilot arc will maintain itself until it is brought into proximity of the workpiece where it ignites the main cutting arc. These arcs are extremely hot and are in the range of 15,000 degrees Celsius.

Plasma is an effective means of cutting thin and thick materials alike. Hand-held torches can usually cut up to 2 in (48 mm) thick steel plate, and stronger computer-controlled torches can pierce and cut steel up to 12 inches (300 mm) thick. Formerly, these cutters could only work on conductive materials; however, new technologies allow the plasma ignition arc to be enclosed within the nozzle, thus allowing the cutter to be used for non-conductive workpieces such as glass and plastics. Since plasma cutters produce a very hot and very localized "cone" to cut with, they are extremely useful for cutting sheet metal in curved or angled shapes.

WHAT IS AN INVERTER CUTTER?

Inverter cutters rectify the mains supply to DC, which is fed into a high-frequency transistor inverter between 10kHz to about 200kHz. Higher switching frequencies give greater efficiencies in the transformer, allowing its size and weight to be reduced. Today's power modules are called IGBT's (Inter Gate Bipolar Transistors) and are generally found in better quality machines. IGBT based machines operate more efficiently and reliably.

CHOOSING THE RIGHT ONE?

The best way to decide which model is going to be right for you is to consider the thickness of metal you intend to cut. We are always honest in what we claim our machines will cut. We quote the clean cut depth as a benchmark for cutting thickness. This will mean that the maximum, or severance cut, will be 20 -25% higher then the clean cut measurement. Severance cuts on most machine will normally require some finishing on the cut edge due to the cutter operating at the upper most limit of it's operational envelope.

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