This high energy released is passed to the metal under operation by the electrical conductivity property of the plasma. For operations where cutting thin metals are involved, a smaller machine will be sufficient whereas for cutting thick metals heavier equipment is required. Plasma is formed at elevated temperatures when the atoms attain high energy and ionize into their respective nuclei and electrons. Well known brands include Miller 701, Samson and Torchmate. The gas used can be nitrogen, oxygen, argon or compressed air. But with the introduction of CNC plasma cutters, this disadvantage has been overcome. Also the residue formed after the metal cutting is automatically removed from the metal surface due to the fluid property of the plasma. The rate of work was slow and the cost of replacements brought down the overall efficiency drastically.There are various models available which are unique in design and performance. Special labor had to be employed to clean up the metal cutting leftovers. The electrons move at tremendously high velocities and the collision that takes place results in the release of huge amounts of atomic energy. This causes the temperature of the gas to rise astronomically resulting in the production of plasma.A CNC plasma cutter involves working with plasma at elevated temperatures; outdoor power equipment parts therefore all safety procedures should be strictly enforced and accepted. The cutter generates heat of approximately 22000 degrees Celsius; therefore special safety measures were required. This high level of energy facilitates the plasma to achieve the cutting effect.Conventional plasma cutters elicited a serious disadvantage because a human operator was required to operate the equipment manually.Plasma cutters work by passing a gas through a narrow opening and bringing this in contact with an electric arc.It is important to understand how plasma can impart such tremendous cutting abilities.Traditional metal cutting devices such as saws and shears have a serious disadvantage associated with them.It is essential to have a basic idea about the metal thickness that will be cut with a plasma cutter. . Based on reviews by experts, the Miller 701 plasma cutter was found to be a best grass cutting machine high performance plasma cutter. Highly skilled labor, a scarce commodity, would be required for complicated and high quality cutting works. Since the cutting operation is monitored by a computer, complicated works like multi-axis cutting could be carried out quite easily. The metal thickness has a direct affect on the equipment size