The cost of plasma cutting machines are going down, so now people are wondering whether they should invest in a machine or go ahead and do it the manual way. These machines are easy to use and have many benefits. Plasma cutting machines offer more options than that of the oxy fuel cutting technique/machines. With one of these machines you will experience high quality cuts and faster speeds.
Plasma cutting machines offer you the ability to cut different thicknesses of materials. This is one factor that you should take into consideration when trying to decide on what plasma cutting machine to buy.
Amperage and thicknesses go hand in hand. So, if cutting thinner materials is what you need this machine for then a lower amp machine will be perfect for you. If you usually mess with metal that is at least 1/2″ thick then you will want to look at the higher amp machines.
On the other hand, the higher the amps, the faster the cutting speeds that you can achieve. If you need the machine for production where speeds is important then decide on a high amp machine. If it really does not matter how fast you make your cuts and you usually mess with materials that are ¼” thick or less, then the low amp machines will work just fine. By now you are beginning to get the picture of how the plasma cutting machines work.
Another important thing that you will want to keep in mind is how the machine starts. High frequency machines have a tendency to affect computers and other electronic equipment that may be in the immediate area of the plasma cutting machine. If this poses a potential problem, then choosing a machine that has a different start method will be less of a headache to you.
When trying to decide upon what brand of plasma cutting machines to buy, consider the parts that will need to be replaced throughout the life of the machine. Some manufacturers have more consumable parts than others. You will want to find a machine that has fewer parts to replace; therefore, costing you less money in maintenance fees for the machine. Consumable parts include items such as an electrode or the nozzle of the torch.
Sometimes you can try before you buy. If at all possible test the machine out and see if it will work for you. Compare the cuts that you make with one machine to the cuts of another. This will help you to determine the quality of the machine. Other things to look for are the arc between the cut and the end of the torch when raising it up and the quality of the arc. A longer arc allows you to cut through thicker materials.
No matter what you look at in the machine, above all other factors check out the machines safety features. This can be a very dangerous machine and safety features are very important. You will want to make sure that yourself and/or your employees are safe at all time.