Dot peen marking machine uses a marking pin to stamp together a number of very small dots in straight or curved lines closely. It is used to stamp codes, numbers, words onto different types of materials or products so that that particular item is traceable.
Dot peen marker is used for placing traceable serial or product codes onto specific materials that manufacturers are able to trace. The dot peen marking machine comes with a number of useful options such as all characters and English letters, serial numbers, barcodes and circled text, date and time variables, dot matrix, etc.
Here is a picture of HBS-380D Dot Peen Marking Machine marks on the railway.