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Deburring machines or finishing machines are used in the manner of finishing of parts. The parts to be finished, finishing media and finishing compounds are all loaded into the deburring machines. When the machine starts, the media and parts scour with each other; the media’s abrasive action produces the deburring and polishing that is required. The finishing compounds are there to boost the media efficiency.

The foremost types of deburring machines are tumbling barrel machines and vibratory finishing machines and they are the most frequently used. There are other machines also like the centrifugal barrel machines and blasting machines that are used for explicit cases. Barrel machines are best when heavy loads are to be run and these machines give optimum performance when they are run with 50% full load.

There are wet barrel machines and dry barrel machines. Wet barrels are used most generally; they are used for the removal of excess material from parts and also for polishing. Water and finishing compounds are used with these machines to polish, clean and deburr parts. Wet barrels work fine on metal parts and they can also be used for dry finishing operations.  Dry barrels are used in mass polishing and deburring in plastic as well as metal parts. No liquids are used in these machines. They come in useful in factories where large quantities of water are not readily available. Dry systems work well on frail parts as the environment inside the dry barrel is very protected. The finished parts typically have a hand buffed appearance when they emerge from the dry machines.

In blasting machines, media are blasted to hit against the parts that are to be finished which causes a deburring and cutting effect. In centrifugal machines where the load in the machine is rotated at very high speeds, the load goes to the wall of the machine and the parts and media rub very forcefully with each other – this in turn produces a deburring and polishing effect.

The vibratory finishing machines have a processing vessel also known as a finishing tub to load the parts, media and finishing compounds. A shaft mounted on to the tub produces the shaking action. This tub is shaken at a high rate of speed but with very small strokes. So, these machines while reducing the cycle time of the finishing operation considerably are very soft on the parts. Even fragile components can be finished securely in a vibratory finishing machine. These machines provide a precise and complete cutting action. They are perfect for removing material from recesses in the parts like for example a bore. Because of their short stroke, they are well equipped to handle bulky parts like wing spans without the hazard of causing any damage to them. Another key advantage of vibratory finishing machines is that they can be easily automated either fully or partially and human intervention can be reduced to a great extent. There fore they can be used in a batch processing mode or a sequential mode.