The Swordfish electrode is a brand new iron oxide, non-exothermic/ oxy-arc cutting electrode that required no oxygen, allowing cutting to take place both above and below water more safely and conveniently.


The process requires no special equipment; a standard DC 400 amp welding power source, cables, and our standard stinger are all that is required. As no oxygen is necessary, and indeed the oxygen produced by the electrode is low, the potential dangers are therefore significantly reduced (See evaluation report commissioned by Shell).



The electrodes are available in 4.0mm and 5.0mm, and will provide a clean, precise cut with minimal skill in a wide range of materials, including:- steel, stainless steel, cast iron, bronze, copper, and even aluminium, both above and below the waterline. Although no special skills are required, we do recommend a period of training to be undertaken to ensure familiarity with the cutting techniques required, and to ensure maximum efficiency is achieved.


These electrodes may be used to cut materials when conventional oxy-arc/exothermic cutting is regarded as a safety hazard, or when no oxygen is available. The electrodes may be used for piercing holes for bolts, removal of rivets, cutting of chain and other attachments as well as more standard straight line cutting of structures, etc. The electrodes can be used in all positions. It is essential for safe and efficient operations that welding cables are in excellent condition and sized according to current/cable length. For long cables (over 50M) an increase in CSA will be required from 50mmÇ (normal) to 75mmÇ or even 90mmÇ. Also, a fully insulated welding stinger is used (we recommend our stinger) and the earth/ground connection be secure, and located in close proximity to the point of cutting.


DC only, with straight (-Ve) or reverse (+Ve) polarity. The choice of polarity will depend upon the environment and the thickness of material. The preferred choice is (-Ve) as this ensures that the heat ratio is greatest in the material, although the operator may find the electrode appears to perform more efficiently on (+Ve) due to the increased burn off rate of the electrode.